Timewave PK-232MBX User manual

PK-232 MBX
Operating Manual
MODEL PK-232MBX DATA CONTROLLER
Timewave Technology nc..

PK-232 MBX OPERAT NG MANUAL
12/01 i
PREFACE TO THE PK-232 OPERATING MANUA
Please read this preface in its entirety. t contains information about how to receive warranty ser-
vice from Timewave and Timewave's software update policy.
RF Interference Information To User
This PK-232 has been certified under Subpart J of Part 15 of the FCC rules.
This equipment generates and uses radio frequency energy. f not installed and used properly, in
strict accordance with AEA's instructions, it may cause interference to radio and TV reception. t
has been type-tested and has been found to comply with the limits of a Class B digital device in
accordance with the specifications in Part 15 Subpart J of the FCC rules, which are designed to
provide reasonable protection against such interference in a residential installation. However, there
is no guarantee that interference will not occur in a particular installation. f this equipment does
cause interference to radio or TV reception, which can be determined by turning the PK-232 on
and off, the user is encouraged to try and correct the interference using one or more of the follow-
ing measures:
o Re-orient the antenna of the device receiving interference.
o Relocate the PK-232 or computer with respect to this device.
o Plug the PK-232 into a different outlet so the PK-232 and the device are on different branch
circuits.
f necessary, the user should consult the dealer or an experienced radio/TV technician for additio-
nal suggestions. The user may find "How to dentify and Resolve Radio-TV nterference Problems",
a booklet prepared by the FCC, helpful.
YOU MUST USE SH ELDED CABLE FOR ALL CONNECT ONS !
As part of its continuing program of product improvement, AEA reserves the right to make changes
in this product's specifications or documentation.
There may be inaccuracies or typographical errors in this document. Please address comments and
corrections to AEA ncorporated, PO Box C2160, Lynnwood, WA 98036-0918. AEA reserves the
right to incorporate and issue any information thus supplied in whatever manner it deems suitable
without incurring any obligations whatsoever.

PK-232 MBX OPERAT NG MANUAL
12/01 ii
Welcome
Congratulations!! You've purchased another fine Timewave product.
PLEASE, before we go any further, may we ask you to F LL OUT AND RETURN the Warranty Regis-
tration Card, which has been packed with your PK-232 system.
Product Update Policy
From time to time Timewave may make available updates to the design of its products. We can on-
ly tell you about these updates if we have your warranty card on file. PLEASE SEND T N if you
have not already done so.
In Case of Trouble
Application and troubleshooting assistance may be had by calling Timewave from 9:00-12:00 A.M.
or 1:00-4:00 P.M. in St. Paul, MN. Ask for the Technical Support Department. The phone number is
651-489-5080. Please have your PK-232's serial number and version date of the software available.
The version date is on the first screen that comes up when you turn on the PK-232. We will also
need to know the nature of any other equipment connected to the PK-232.
You may wish to attempt to solve problems locally, using other hams or an Timewave dealer. With
over 100,000 PK-232s in use, a helpful Amateur with equipment similar to your own may literally
be just around the corner. Substituting another PK-232 that you know is working properly for your
questionable one is a diagnostic technique that will check out the rest of your station. You may al-
so try running your PK-232 in another station if possible.
Timewave provides Technical Support for its line of amateur radio equipment by way of your per-
sonal computer and modem on the internet! Timewave's eMail addresses for service and tech sup-
port are [e-mail] and [e-mail].
f you call for assistance, please have your PK-232 up and running beside the phone. Our Support
technician will likely ask you to perform certain keyboard routines to aid in diagnosis. f you have a
voltmeter handy, you might have the PK-232 open so you can report measurements to the Support
technician.
Many of the Timewave products that are sent to us for repair are in perfectly good order when we
receive them. There is a check-out charge of $40 for units returned to us in working order. Please
perform whatever steps are applicable from the installation sections of this manual.
PLEASE DO NOT RETURN THE PK-232 TO US W THOUT CONTACT NG US FOR PERM SS ON AND
AN RMA NUMBER. WE WOULD L KE THE OPPORTUN TY TO TROUBLESHOOT THE PROBLEM OVER
THE PHONE F RST, SAV NG YOU BOTH T ME AND MONEY.
f the unit must be sent in, we will give you a Return to Manufacturer Authorization (RMA) number
over the telephone. This number allows us to track your unit and provide you with its status.
Please write this number on the outside of the box so we may process your unit as quickly as pos-
sible.
Timewave address is:
Timewave Technology nc.
501 W. Lawson Ave.
ST. Paul, MN 55117 USA
Attn. Service
RMA # ????????? obtain by telephone or eMail from Timewave)

PK-232 MBX OPERAT NG MANUAL
12/01 iii
We will need YOUR street address for UPS return - be sure to send it. Please include your daytime
telephone number in case we need to contact you for further information.
UPS Surface (Brown Label) takes 5-6 days, Blue takes 2-3 days. Red is an overnight service and is
expensive. Send the PK-232 in a way that it can be traced if we cannot verify receipt of shipment.
We suggest UPS or insured postal shipment.
f the PK-232 is still under the original owner's warranty, Timewave will pay the cost of the return
shipment to you. The current policy is that it will be returned UPS Brown. f the owner wishes to
PK-232 to be returned Blue, Red or by other overnight service he must furnishes the return cost
for the method he selects.
f the PK-232 is out of warranty, it will be returned by UPS Brown COD unless:
1) t was received UPS Blue/Red in which case it will go back UPS Blue COD, or
2) f you designate billing to V SA or MASTERCARD or American Express, or
3) you prepay the service charges with a personal check, or
4) you specify some other method of return.
Typically, we will service the product in five to ten working days after it has arrived at Timewave if
we have all the facts. f we must call you, it may take longer. PLEASE include a letter stating the
problem and where you can be reached by telephone. f you can be reached by phone in the eve-
ning on the East Coast, let us know the number. Our current rate for non-warranty service of the
PK-232 is a flat rate of $75 which includes return shipping. Timewave is not responsible for dam-
age such as caused by lightning, nonprofessional alterations, poor storage/handling, etc. We will
make note of any shipping damage upon receipt. See the inside back cover for Warranty informa-
tion.
Should your warranty card not be on file at Timewave, you need to send the proof of purchase
date to receive warranty service. Typically a copy of your bill of sale from an Timewave dealer will
suffice.
The warranty is for the original owner only and is not transferable.

PK-232 MBX – OPERAT NG MANUAL TABLE OF CONTENTS
8/91 TOC-1 5
TAB E OF CONTENTS
Paragraph Page
CHAPTER 1 – NTRODUCT ON
1.1 Overview ...........................................................................................1-1 .............. 12
1.1.1 Capabilities ............................................................................ 1-1 .............. 12
1.1.2 ncluded Components ............................................................. 1-1 .............. 12
1.2 Computer or Computer Terminal Requirements ................................... 1-2 .............. 13
1.3 Station Requirements ........................................................................ 1-2 .............. 13
1.3.1 System Transmitter-Receiver Performance Requirements ........... 1-2 .............. 13
1.4 PK-232 Specifications ......................................................................... 1-2 .............. 13
1.4.1 Modem Characteristics ............................................................ 1-3 .............. 14
1.4.2 Processor System ................................................................... 1-3 .............. 14
1.4.3 nput/Output Connections ....................................................... 1-3 .............. 14
1.4.4 Controls and ndicators ........................................................... 1-4 .............. 15
1.4.5 General ................................................................................. 1-4 .............. 15
CHAPTER 2 – COMPUTER NSTALLAT ON
2.1 Overview .......................................................................................... 2-1 .............. 16
2.1.1 Equipment Required ............................................................... 2-1 .............. 16
2.2 Unpacking the PK-232 ....................................................................... 2-1 .............. 16
2.2.1 Connecting Power ................................................................... 2-1 .............. 16
2.3 Connecting Your Computer or Computer Terminal ................................ 2-3 .............. 18
2.3.1 BM-PC/XT/AT and Compatibles ............................................... 2-3 .............. 18
2.3.2 Apple Macintosh Series of Computers ....................................... 2-3 .............. 18
2.3.3 Computer Terminal ................................................................. 2-3 .............. 18
2.4 Setting Up Your Communications or Terminal Software Program ........... 2-3 .............. 18
2.4.1 Terminal Programs for BM-PCs and Compatibles ...................... 2-4 .............. 19
2.4.2 Terminal Programs for the Apple Macintosh .............................. 2-4 .............. 19
2.5 System Startup and Loop-back Test .................................................... 2-5 .............. 20
2.6 Detailed RS-232 Connections for Other Computers .............................. 2-8 .............. 23
2.6.1 Other Computers with RS-232-C Ports ...................................... 2-8 .............. 23
2.6.2 Other Computers with Non-Standard Serial Ports ...................... 2-9 .............. 24
2.7 Terminal (Modem) Software for Other Computers ................................ 2-9 .............. 24
CHAPTER 3 – RAD O NSTALLAT ON
3.1 Overview .......................................................................................... 3-1 .............. 25
3.1.1 Equipment Required ............................................................... 3-1 .............. 25
3.2 Receive-Only Radio Connections ......................................................... 3-1 .............. 25
3.3 Transmit and Receive Radio Connections ............................................. 3-2 .............. 26
3.3.1 Transceiver's Microphone or Accessory Connector? .................... 3-2 .............. 26
3.3.2 Connections for Specific Transceivers ....................................... 3-2 .............. 26
3.3.3 Check Your Transceiver's Operating Manual .............................. 3-2 .............. 26
3.3.4 Specific Connection Points ....................................................... 3-2 .............. 26
3.3.5 Begin Assembling your Radio Cable .......................................... 3-3 .............. 27
3.3.5.1 Prepare the Radio Cable ............................................... 3-3 .............. 27
3.3.5.2 Verify the Connection Points with Your Manual ............... 3-3 .............. 27
3.3.5.3 Prepare the Connector ................................................. 3-4 .............. 28
3.3.5.4 Wire the Connector ...................................................... 3-4 .............. 28
3.3.6 Wiring Your HF Transceiver for Direct CW Keying ...................... 3-5 .............. 29
3.3.7 Connections for Direct FSK Operation on RTTY .......................... 3-5 .............. 29

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3.3.8 Connections for an Oscilloscope ............................................... 3-6 .............. 30
3.4 PK-232 Configuration Jumpers and Connections .................................. 3-6 .............. 30
3.4.1 Push-To-Talk (PTT) Configuration ............................................. 3-6 .............. 30
3.4.2 PK-232 Connections ................................................................ 3-7 .............. 31
3.5 Transceiver Adjustments .................................................................... 3-7 .............. 31
3.5.1 FM Transceiver Final Adjustments ............................................ 3-7 .............. 31
3.5.2 SSB Transceiver Final Adjustments ........................................... 3-9 .............. 33
CHAPTER 4 – PACKET-RAD O
4.1 Overview .......................................................................................... 4-1 .............. 36
4.1.1 Getting Started ....................................................................... 4-1 .............. 36
4.1.2 Making the Loopback Connection ............................................. 4-1 .............. 36
4.2 Packet ntroduction ........................................................................... 4-2 .............. 37
4.3 VHF/UHF Packet Operation ................................................................ 4-4 .............. 39
4.3.1 What You Should See ............................................................. 4-5 .............. 40
4.3.2 What t Means ....................................................................... 4-6 .............. 41
4.3.3 What Happens When You Connect ........................................... 4-7 .............. 42
4.3.3.1 Standard TNCs ............................................................ 4-8 .............. 43
4.3.3.2 Mailbox Message Systems ............................................. 4-8 .............. 43
4.3.3.3 Packet Switches ........................................................... 4-9 .............. 44
4.3.4 Who Can Talk To? ................................................................. 4-11 ............ 46
4.3.5 Your First Real Connect ........................................................... 4-11 ............ 46
4.3.6 'm Having Trouble Connecting ................................................ 4-12 ............ 47
4.4 More Packet Features ........................................................................ 4-12 ............ 47
4.4.1 LED Status and Mode ndicators .............................................. 4-13 ............ 48
4.4.2 Automatic Greetings ............................................................... 4-13 ............ 48
4.4.3 Beacon Operation ................................................................... 4-13 ............ 48
4.4.4 Digipeater Details ................................................................... 4-14 ............ 49
4.4.4.1 Are You a Digipeater? ................................................... 4-14 ............ 49
4.4.5 Monitoring Other Stations ....................................................... 4-15 ............ 50
4.4.5.1 Monitoring the Packet Networking Switches ................... 4-15 ............ 50
4.4.5.2 Monitoring Other Stations While Connected ................... 4-16 ............ 51
4.4.5.3 Selective Monitoring ..................................................... 4-16 ............ 51
4.4.5.4 The MF LTER Command ............................................... 4-16 ............ 51
4.4.5.5 Monitor Without Callsign Headers .................................. 4-16 ............ 51
4.4.5.6 MSTAMP - The Monitor Time-Stamp Command ............... 4-16 ............ 51
4.4.6 Packet Connects ..................................................................... 4-16 ............ 51
4.4.6.1 Time-Stamping Connects .............................................. 4-17 ............ 52
4.4.6.2 Connect Alarm ............................................................. 4-17 ............ 52
4.4.7 Packet Formatting and Editing ................................................. 4-17 ............ 52
4.4.7.1 Carriage Returns and Linefeeds in Packets ..................... 4-17 ............ 52
4.4.7.2 Canceling Lines and Packets ......................................... 4-17 ............ 52
4.4.7.3 Redisplay .................................................................... 4-18 ............ 53
4.4.7.4 The PASS Character ..................................................... 4-18 ............ 53
4.4.8 Packet Transmit Timing ........................................................... 4-18 ............ 53
4.4.8.1 TXDELAY and AUDELAY ................................................ 4-18 ............ 53
4.4.8.2 AXDELAY and AXHANG ................................................. 4-19 ............ 54
4.5 Packet Protocol Basics ....................................................................... 4-19 ............ 54
4.5.1 Unconnected Packets .............................................................. 4-19 ............ 54
4.5.2 Connected Packets ................................................................. 4-19 ............ 54
4.5.3 FRACK and RETRY .................................................................. 4-20 ............ 55
4.5.4 PACLEN and MAXFRAME ......................................................... 4-20 ............ 55
4.5.5 Reducing Errors Through Collision Avoidance ............................ 4-20 ............ 55

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4.5.6 CHECK and REL NK ................................................................ 4-21 ............ 56
4.6 Multiple Connection Operation ........................................................... 4-21 ............ 56
4.6.1 Multiple Connection Description ............................................... 4-21 ............ 56
4.6.2 The Channel Switching Character ............................................. 4-21 ............ 56
4.6.3 Will You Accept Multiple Connects ............................................ 4-21 ............ 56
4.6.4 Display Multiple Connected Callsigns ........................................ 4-21 ............ 56
4.6.5 Doubling Received CHSW TCH Characters ................................ 4-22 ............ 57
4.6.6 Checking Your Connect Status with the CSTATUS Command ...... 4-22 ............ 57
4.6.7 The MULT LED ....................................................................... 4-22 ............ 57
4.7 HF Packet Operation .......................................................................... 4-22 ............ 57
4.7.1 Where to Operate HF Packet ................................................... 4-22 ............ 57
4.7.2 PK-232 HF Packet Settings ...................................................... 4-22 ............ 57
4.7.3 HF Receiver Settings ............................................................... 4-23 ............ 58
4.7.4 Tuning n HF Packet Stations ................................................... 4-23 ............ 58
4.7.5 Transmitter Adjustments ......................................................... 4-24 ............ 59
4.7.6 Going On The Air .................................................................... 4-24 ............ 59
4.8 Advanced Packet Operation ............................................................... 4-24 ............ 59
4.8.1 Transparent Mode ................................................................... 4-25 ............ 60
4.8.2 Sending 8-bit Data in Converse Mode ....................................... 4-25 ............ 60
4.8.3 The ALTMODEM Command ...................................................... 4-25 ............ 60
4.8.4 The CFROM Command ............................................................ 4-25 ............ 60
4.8.5 Operating in Full-Duplex ......................................................... 4-25 ............ 60
4.8.6 dentifying as a Digipeater ...................................................... 4-25 ............ 60
4.8.7 Digipeater Alias Callsign .......................................................... 4-25 ............ 60
4.8.8 Morse D in Packet ................................................................. 4-25 ............ 60
4.8.9 Sharing Packet Channels With Voice Operation ......................... 4-26 ............ 61
4.8.10 Disabling Transmit Operation ........................................ 4-26 ............ 61
4.9 Seldom Used Commands ................................................................... 4-26 ............ 61
4.10 Packet Lite HF Packet Protocol Extension ............................................ 4-26 ............ 61
4.10.1 Enabling Packet Lite ................................................................ 4-27 ............ 62
4.10.2 Compatibility With Standard AX.25 Stations .............................. 4-27 ............ 62
4.10.3 Packet Lite Protocol Enhancement Summary ............................. 4-28 ............ 63
4.11 Packet Meteor Scatter Extension ........................................................ 4-30 ............ 65
CHAPTER 5 – MA LDROP OPERAT ON
5.1 Overview of PakMail Operation ........................................................... 5-1 .............. 67
5.1.1 RAM Space for Message Storage .............................................. 5-1 .............. 67
5.1.2 System Commands ................................................................. 5-1 .............. 67
5.1.3 Your MailDrop Callsign ............................................................ 5-1 .............. 67
5.1.4 Start and Stop MailDrop Operation ........................................... 5-1 .............. 67
5.2 Local Logon ...................................................................................... 5-1 .............. 67
5.2.1 Monitor MailDrop Operation ..................................................... 5-2 .............. 68
5.2.2 Caller Prompts ........................................................................ 5-2 .............. 68
5.3 SYSOP MailDrop Commands ............................................................... 5-2 .............. 68
5.4 Remote User MailDrop Commands ...................................................... 5-3 .............. 69
5.4.1 A (ABORT) ............................................................................. 5-3 .............. 69
5.4.2 B (BYE) ................................................................................. 5-3 .............. 69
5.4.3 E (Edit #) .............................................................................. 5-3 .............. 69
5.4.4 H (HELP) ............................................................................... 5-4 .............. 70
5.4.5 J (JLOG) ................................................................................ 5-4 .............. 70
5.4.6 K n (K LL n [Mine]) ................................................................. 5-5 .............. 71
5.4.7 L (L ST [Mine]) ...................................................................... 5-5 .............. 71
5.4.8 R n (READ n [Mine]) ............................................................... 5-5 .............. 71

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5.4.9 S callsign (SEND callsign) ........................................................ 5-5 .............. 71
5.4.9.1 Sending Other Types of Messages with SEND.................. 5-6 .............. 72
5.4.10 V (VERS ON) .......................................................................... 5-7 .............. 73
5.4.11 ? (HELP) ................................................................................ 5-7 .............. 73
5.5 Sample MailDrop Session - The Remote User's Point of View ................ 5-7 .............. 73
5.5.1 Connect and Logon ................................................................. 5-7 .............. 73
5.5.2 L ST Messages ....................................................................... 5-7 .............. 73
5.5.3 READ Messages ...................................................................... 5-8 .............. 74
5.5.4 K LL Messages ....................................................................... 5-8 .............. 74
5.5.5 SEND Messages ...................................................................... 5-8 .............. 74
5.5.6 Log Off and Disconnect ........................................................... 5-9 .............. 75
5.6 Sample MailDrop Session - MailDrop SYSOP's Point of View .................. 5-9 .............. 75
5.6.1 Message Numbers .................................................................. 5-10 ............ 76
5.7 Forwarding and Reverse Forwarding with the PK-232 MailDrop ............. 5-10 ............ 76
5.7.1 MailDrop Settings for Auto-Forwarding ..................................... 5-11 ............ 76
5.7.2 Entering a Message for Reverse Forwarding .............................. 5-11 ............ 77
CHAPTER 6 – BAUDOT AND ASC RTTY OPERAT ON
6.1 Overview .......................................................................................... 6-1 .............. 78
6.2 Where to Operate Baudot and ASC RTTY .......................................... 6-1 .............. 78
6.2.1 PK-232 Baudot RTTY Parameter Settings .................................. 6-1 .............. 78
6.2.2 HF Receiver Settings ............................................................... 6-1 .............. 78
6.2.3 Tuning in Baudot and ASC Stations ........................................ 6-2 .............. 79
6.3 Transmitter Adjustments .................................................................... 6-3 .............. 80
6.3.1 Going On The Air .................................................................... 6-3 .............. 80
6.4 A Typical Baudot RTTY Contact ........................................................... 6-3 .............. 80
6.4.1 Calling CQ .............................................................................. 6-3 .............. 80
6.4.2 Answering a CQ ..................................................................... 6-4 .............. 81
6.5 Baudot RTTY Operating Tips .............................................................. 6-4 .............. 81
6.5.1 Changing Speed ..................................................................... 6-5 .............. 82
6.5.2 Entering Your Auto-AnswerBack ............................................... 6-5 .............. 82
6.5.3 Formatting Your Transmitted and Received Text ........................ 6-5 .............. 82
6.5.4 Sending a Synchronous dle or D DDLE .................................... 6-6 .............. 83
6.5.5 Echoing Transmitted characters As Sent ................................... 6-6 .............. 83
6.5.6 Sending Only Complete Words ................................................. 6-6 .............. 83
6.5.7 Operating on the Wrong Sideband ............................................ 6-6 .............. 83
6.5.8 UnShift-On-Space (USOS) ....................................................... 6-6 .............. 83
6.5.9 Operating at Commercial or VHF Wide RTTY Shifts .................... 6-6 .............. 83
6.5.10 The CODE Command for nternational RTTY Compatibility ......... 6-6 .............. 83
6.5.11 Copying Encoded RTTY Transmissions ...................................... 6-7 .............. 84
6.6 ASC RTTY Operation ....................................................................... 6-7 .............. 84
6.6.1 Starting ASC Operation ......................................................... 6-7 .............. 84
6.6.2 ASC RTTY Operating Tips ...................................................... 6-7 .............. 84
6.6.3 Changing ASC Baud Rates .................................................... 6-8 .............. 85
6.6.4 Other RTTY Commands for ASC Operation ............................. 6-8 .............. 85
CHAPTER 7 – AMTOR AND NAVTEX OPERAT ON
7.1 Overview .......................................................................................... 7-1 .............. 86
7.2 Where to Operate AMTOR ................................................................. 7-1 .............. 86
7.2.1 PK-232 AMTOR Parameter Settings .......................................... 7-1 .............. 86
7.2.2 Entering Your SELective CALling Code (MYSELCAL) ................... 7-1 .............. 86
7.2.3 Entering Your SELective CALling Code (MY DENT) ..................... 7-2 .............. 87

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7.2.4 Enter the AMTOR Mode ........................................................... 7-2 .............. 87
7.2.5 HF Receiver Settings ............................................................... 7-2 .............. 87
7.2.6 Tuning in AMTOR Stations ....................................................... 7-3 .............. 88
7.3 Transmitter Adjustments .................................................................... 7-4 .............. 89
7.3.1 Going On The Air .................................................................... 7-4 .............. 89
7.3.2 Calling CQ in FEC AMTOR ........................................................ 7-4 .............. 89
7.3.3 Answering an FEC AMTOR CQ ................................................. 7-5 .............. 90
7.3.4 ARQ AMTOR Operating Fundamentals ...................................... 7-5 .............. 90
7.3.5 Ending an ARQ AMTOR Contact ............................................... 7-5 .............. 90
7.3.6 LED Status and Mode ndicators .............................................. 7-6 .............. 91
7.4 AMTOR Operating Tips ...................................................................... 7-7 .............. 92
7.4.1 ARQ Break- n (ACHG Command) .............................................. 7-7 .............. 92
7.4.2 Entering Your Auto-AnswerBack (AAB) ..................................... 7-7 .............. 92
7.4.3 Speed Change Not Permitted ................................................... 7-8 .............. 93
7.4.4 Echoing Transmitted Characters as Sent (EAS) .......................... 7-8 .............. 93
7.4.5 Sending Only Complete Words (WORDOUT) ............................. 7-8 .............. 93
7.4.6 Operating on the Wrong Sideband ........................................... 7-8 .............. 93
7.5 Monitoring ARQ AMTOR Contacts with AL ST ...................................... 7-8 .............. 93
7.6 AMTOR MailDrop Operation ............................................................... 7-9 .............. 94
7.6.1 Special Operating Considerations ............................................. 7-9 .............. 94
7.6.2 Settings For AMTOR MailDrop Operation ................................... 7-9 .............. 94
7.6.3 Starting AMTOR MailDrop Operation ......................................... 7-9 .............. 94
7.6.4 Local Logon to the MailDrop .................................................... 7-9 .............. 94
7.6.4.1 Remote Logon to your AMTOR MailDrop ........................ 7-10 ............ 95
7.6.5 Caller Prompts ........................................................................ 7-11 ............ 96
7.6.6 Monitor MailDrop Operation ..................................................... 7-11 ............ 96
7.6.7 SYSOP MailDrop Commands .................................................... 7-11 ............. 96
7.6.8 Remote User MailDrop Commands ........................................... 7-11 ............ 96
7.6.8.1 A (ABORT) .................................................................. 7-11 ............ 96
7.6.8.2 B (BYE) ....................................................................... 7-11 ............ 96
7.6.8.3 H (HELP) ..................................................................... 7-11 ............ 96
7.6.8.4 J (JLOG) ...................................................................... 7-12 ............ 97
7.6.8.5 K n (K LL n [Mine]) ...................................................... 7-12 ............ 97
7.6.8.6 L (L ST [Mine]) ............................................................ 7-12 ............ 97
7.6.8.7 R n (READ n [Mine]) .................................................... 7-12 ............ 97
7.6.8.8 S callsign (SEND callsign) ............................................. 7-12 ............ 97
7.7 AMTOR Switching-Time Considerations ............................................... 7-12 ............ 97
7.7.1 Suggested AMTOR Operating Settings ...................................... 7-13 ............ 98
7.7.2 Possible Areas for AMTOR Performance mprovement ................ 7-13 ............ 98
7.8 NAVTEX Operation ............................................................................ 7-13 ............ 98
CHAPTER 8 – MORSE OPERAT ON
8.1 Overview........................................................................................... 8-1 .............. 100
8.2 Where to Operate Morse..................................................................... 8-1 .............. 100
8.2.1 PK-232 Morse Parameter Settings............................................. 8-1 .............. 100
8.2.2 HF Receiver Settings................................................................ 8-1 .............. 100
8.2.3 Tuning in Morse Stations ......................................................... 8-1 .............. 100
8.3 Going On The Air .............................................................................. 8-2 .............. 101
8.3.1 A Typical Morse Contact .......................................................... 8-2 .............. 101
8.4 Morse Operating Tips ........................................................................ 8-3 .............. 102
8.4.1 Speed Change (MSPEED) ........................................................ 8-3 .............. 102
8.4.2 Echoing Transmitted Characters As Sent (EAS) .......................... 8-3 .............. 102
8.4.3 Sending only Complete Words (WORDOUT) .............................. 8-4 .............. 103

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8.4.4 Speed Lock (LOCK) ................................................................. 8-4 .............. 103
8.5 Special Morse Characters ................................................................... 8-4 .............. 103
8.6 Morse Code Practice .......................................................................... 8-4 .............. 103
CHAPTER 9 - FACS M LE OPERAT ON
9.1 Overview .......................................................................................... 9-1 .............. 104
9.2 Finding FAX Frequencies .................................................................... 9-1 .............. 104
9.3 System Setup ................................................................................... 9-2 .............. 105
9.3.1 HF Receiver Settings ............................................................... 9-2 .............. 105
9.3.2 Tuning n HF Facsimile Stations ............................................... 9-2 .............. 105
9.3.3 PK-232 Facsimile Parameter Settings ........................................ 9-3 .............. 106
9.4 Receiving Facsimile Broadcasts ........................................................... 9-3 .............. 106
9.5 Facsimile Operating Tips .................................................................... 9-4 .............. 107
9.5.1 Setting PRTYPE for Your Printer ............................................... 9-4 .............. 107
9.5.2 Printing Direction (LEFTR TE) .................................................. 9-4 .............. 107
9.5.3 nverting Black and White (PAXNEG) ........................................ 9-4 .............. 107
9.5.4 Printing Density ...................................................................... 9-4 .............. 107
9.6 Printing Other Services ...................................................................... 9-4 .............. 107
9.7 Transmitting FAX ............................................................................... 9-5 .............. 108
9.8 Adjusting the PK-232 4.0 MHz Master Oscillator ................................... 9-5 .............. 108
CHAPTER 10 – S GNAL DENT F CAT ON AND TDM OPERAT ON
10.1 Overview .......................................................................................... 10-1 ............ 109
10.2 S AM Operation ................................................................................ 10-1 ............ 109
10.2.1 Tuning n FSK Narrow and Wide Stations .................................. 10-1 ............ 109
10.3 Using the S AM Mode ........................................................................ 10-2 ............ 110
10.3.1 Copying Encoded RTTY Transmissions ...................................... 10-3 ............ 111
10.3.2 The CODE Command for nternational RTTY Compatibility ......... 10-3 ............ 111
10.4 TDM Receive Operation ..................................................................... 10-3 ............ 111
10.4.1 TDM Parameters ..................................................................... 10-4 ............ 112
10.4.2 Monitoring TDM Signals ........................................................... 10-4 ............ 112
10.4.3 Where to Find TDM Signals ..................................................... 10-4 ............ 112
CHAPTER 11 – PACTOR OPERAT ON
11.1 Overview .......................................................................................... 11-1 ............ 113
11.2 Where to Operate Pactor ................................................................... 11-1 ............ 113
11.3 PK-232 Parameter Settings ................................................................. 11-1 ............ 113
11.3.1 Entering Your Callsign (MYCALL) .............................................. 11-1 ............ 113
11.3.2 Entering the Pactor Mode ........................................................ 11-2 ............ 114
11.4 HF Receiver Settings ......................................................................... 11-2 ............ 114
11.5 Tuning in Pactor Stations ................................................................... 11-2 ............ 114
11.6 Operating on Pactor .......................................................................... 11-3 ............ 115
11.6.1 Going On the Air .................................................................... 11-3 ............ 115
11.6.2 Calling CQ in Unproto Mode .................................................... 11-4 ............ 116
11.6.3 Answering an Unproto Pactor CQ ............................................. 11-4 ............ 116
11.6.3.1 Ending an ARQ Pactor Contact ...................................... 11-5 ............ 117
11.6.4 Long Path Contacts ................................................................. 11-5 ............ 117
11.6.5 LED Status and Mode ndicators .............................................. 11-6 ............ 118
11.7 Pactor Operating Tips ........................................................................ 11-7 ............ 119
11.7.1 ARQ.Break- n (ACHG Command) ............................................. 11-7 ............ 119
11.7.2 Entering Your Auto-Answer Back (AAB) .................................... 11-7 ............ 119

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Paragraph Page
11.7.3 Operating Pactor on Other Modem Frequencies and Shifts ......... 11-7 ............ 119
11.7.4 Automatic Speed Change ........................................................ 11-8 ............ 120
11.7.5 Echoing Transmitted Characters As Sent (EAS) .......................... 11-8 ............ 120
11.7.6 Sending Only Complete Words (WORDOUT) ............................. 11-8 ............ 120
11.7.7 Operating on the Wrong Sideband ........................................... 11-8 ............ 120
11.7.8 Little Used Pactor Commands .................................................. 11-8 ............ 120
11.8 Monitoring ARQ Pactor Contacts with PTL ........................................... 11-8 ............ 120
11.9 Pactor MailDrop Operation ................................................................. 11-9 ............ 121
11.9.1 Special Operating Considerations ............................................. 11-9 ............ 121
11.9.2 Settings For Pactor MailDrop Operation .................................... 11-10 .......... 122
11.9.3 Starting Pactor MailDrop Operation .......................................... 11-10 .......... 122
11.9.4 Local Logon to the MailDrop .................................................... 11-10 .......... 122
11.9.4.1 Remote Logon to your Pactor MailDrop .......................... 11-10 .......... 122
11.9.5 Caller Prompts ........................................................................ 11-10 .......... 122
11.9.6 Monitor MailDrop Operation ..................................................... 11-11 .......... 123
11.9.7 SYSOP MailDrop Operation ...................................................... 11-11 .......... 123
11.9.8 Remote User MailDrop Commands ........................................... 11-11 .......... 123
11.9.8.1 A (ABORT) (Remote Only) ............................................ 11-11 .......... 123
11.9.8.2 B (BYE) ....................................................................... 11-11 .......... 123
11.9.8.3 H (HELP) ..................................................................... 11-11 .......... 123
11.9.8.4 J (JLOG) ...................................................................... 11-11 .......... 123
11.9.8.5 K n (K LL n [M NE]) ..................................................... 11-11 .......... 123
11.9.8.6 L (L ST [M NE]) ........................................................... 11-12 .......... 124
11.9.8.7 R n (READ n [M NE]) ................................................... 11-12 .......... 124
11.9.8.8 S callsign (SEND callsign) ............................................. 11-12 .......... 124
11.9.8.9 V (VERS ON) ............................................................... 11-12 .......... 124
11.9.8.10 ? (HELP) ..................................................................... 11-12 .......... 124
11.10 Pactor and Packet MailDrop operation ................................................. 11-12 .......... 124
11.11 Pactor Switching Time Considerations ................................................. 11-13 .......... 125
11.11.1 Suggested Pactor Operating Settings ....................................... 11-13 .......... 125
11.11.2 Possible Areas For Pactor Performance mprovement ................. 11-13 .......... 125
APPEND CES
APPEND X A – PK-232 COMMAND SUMMARY ...................................................................... 127
APPEND X B – PK-232 SCHEMAT C D AGRAM ..................................................................... 213
APPEND X C – PK-232 PARTS P CTOR AL ........................................................................... 215
APPEND X D – PK-232 PARTS L ST ..................................................................................... 216
APPEND X E – SPEC F C RAD O CONNECT ONS .................................................................. 218
APPEND X F – COMMAND L ST .......................................................................................... 228

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CHAPTER 1 – INTRODUCTION
1.1 Overview
The PK-232 was designed to provide a complete digital operating position when coupled
with a Personal Computer or Computer Terminal. The PK-232 couples your HF or VHF (or
both) voice transceivers to your computer or terminal so you can use its keyboard and dis-
play to "talk" to other Amateurs.
1.1.1 Capabilities
The PK-232 allows you to transmit and receive all legal Amateur digital modes that are
popular on both HF and VHF. n addition you can send and receive black-and-white
Weather FAX. The PK-232 can receive other modes such as TDM, NAVTEX and bit-inverted
Baudot RTTY. These capabilities together with S AM (Signal dentification and Acquisition
Mode) make the PK-232 ideal for the digital signal Short Wave Listener as well.
The PK-232 with your Computer or Terminal allows you to transmit and receive the follow-
ing modes:
• AX.25 Packet, both HF and VHF (Chapter 4)
• Packet MailDrop Operation (Chapter 5)
• Baudot and ASC RTTY (Chapter 6)
• AMTOR/S TOR CC R Rec. 476 and 625 (Chapter 7)
• Morse Code (Chapter 8)
• HF Weather FAX (Chapter 9)
• Pactor (Chapter 11)
n addition the PK-232 receives the following modes:
• NAVTEX marine broadcasts (Chapter 7)
• TDM (Time Division Multiplex) signals (Chapter 10)
The PK-232 also has the following special features:
• S AM for SWLing (Chapter 10)
• PakMail Packet/AMTOR/Pactor * MailDrop Message Handling
• K SS mode for TCP/ P and special Packet applications
• HOST mode for Host application programs
1.1.2 Included Components
Your PK-232 Data Controller package contains the following items:
• One PK-232 Data Controller
• PK-232 Operating Manual (this manual)
• Cables to connect your PK-232 to two separate radios
• Connector package to help setup your PK-232
• RS-232 Serial Cable with DB-25 connectors (pins 1-8 and 20)

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1.2 Computer or Computer Terminal Requirements
You will need a Computer or Computer Terminal to "talk to" or control your PK-232. f you
are using a Computer, you will need a Communications Program or Terminal Program as it is
sometimes called. The most popular computers are the BM-PC and its compatibles, the Ap-
ple Macintosh and the Commodore-64/128. These computers can all be made to work with
the PK-232.
Timewave has terminal programs for BM PC compatible computers using Windows 3.1 and
Windows 95/98/NT operating systems. f you other types of computer or operating systems,
you must supply your own terminal program.
The Computer or Computer Terminal you plan to use must have an RS-232 Serial Communi-
cations port. You will also need a Communications Program that allows your computer to
communicate over the RS-232 port using the ASC character set. Details for connecting
many computers can be found in Chapter 2 of this manual.
1.3 Station Requirements
We presume that you already have an operating radio transceiver or Short-Wave receiver to
which you will connect your PK-232. n the Amateur bands most of the VHF activity occurs
on the 2-meter FM band, while most of the HF activity occurs on the 20-meter band. An HF
receiver or transceiver must be capable of SSB operation. While no specific brand of trans-
ceiver is required, we recommend that a modern transceiver (built in the last 20 years) ca-
pable of operation on one of the two frequency bands mentioned above be used. Specific
transceiver connections are described in Chapter 3 of this manual.
1.3.1 System Transmitter-Receiver Performance Requirements
Most modern radio transceivers are capable of excellent performance in Morse, Baudot
and ASC RTTY, AMTOR and packet-Radio. Although AMTOR Mode A (ARQ) operation im-
poses more demanding switching speed requirements than the other operating modes,
most radios will operate in both AMTOR modes without any modifications. Radio switching
times are less critical in Packet-Radio operation. See the AMTOR operating section for fur-
ther details on timing requirements.
Your PK-232 provides software-controlled timing variations that permits operation with
nearly all the HF and VHF/UHF radios in general use today.
1.4 PK-232 Specifications
As part of its program of product improvement, AEA reserves the right to make changes in
this product's specifications. Changes may also be made to the information in this document
and incorporated in revisions to this manual. Prices and specifications are subject to change
without notice or obligation.

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1.4.1 Modem Characteristics
Demodulator: Limiter-discriminator type, preceded by an eight-pole Cheby-
shev 0.5-dB ripple bandpass filter
Receive Band-pass: Automatically switched by operating mode
VHF packet: Center frequency 1700 Hz, bandwidth 2600 Hz
HF (except CW) Center frequency 2210 Hz, bandwidth 450 Hz
CW Center frequency 800 Hz, bandwidth 200 Hz
Modulator: Low-distortion AFSK sine wave function generator, phase-con-
tinuous AFSK
Output Level: 5 to 100 millivolts RMS into 600 Ohms, adjustable by a rear-
panel control
1.4.2 Processor System
Protocol conversion: Zilog Z-80 microprocessor
RAM: 32 kilobytes
ROM: Up to 128 kilobytes of ROM may be used
Hardware HDLC: Zilog 8530 SCC
1.4.3 Input/Output Connections
Radio nterface: Two five-pin Molex connectors, selectable on the front-panel
nput/Output Lines Receive audio
Transmit audio
± Push-To-Talk (PTT) (+25 / -40 VDC)
External squelch input
Ground
External modem
connector Five-pin Molex- TXD, RXD, DCD, PTT and Ground (TTL levels)
Direct FSK Outputs Normal and reverse
Oscilloscope Outputs Mark (Stop) and space (Start)
CW keying Outputs Positive: +100 VDC max., at up to 100 mA
Negative: -30 VDC max., at up to 20 mA
Terminal nterface: RS-232-C 25-pin DB25 connector
nput/Output RS-232-C with full handshake (hardware and software)
USE W RES 1 THROUGH 8 AND 20 ONLY.
Terminal Data Rates Autobaud selection of 110, 300, 600, 1200, 2400, 4800 and
9600 BPS. TBAUD COMMAND adds 150, 200 and 400 BPS.

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1.4.4 Controls and Indicators
Front Panel Controls: Power Switch
Radio Selector Switch
Threshold Adjust Potentiometer
ndicators: Ten-segment discriminator-type bargraph
ndicator for HF tuning
DCD LED (Data Carrier Detect)
Status & Mode ndicators: Mode Group Status Group
BAUDOT STBY
ASC PHASE
PKT DLE
MORSE ERROR/CONV
SELFEC OVER
FEC TFC/TRANS
ARQ RQ/CMD
MODE L CON
STBY STA
MULT
SEND
1.4.5 General
Power Requirements: +13 VDC (12 to 16 VDC) at 800 mA
Mechanical: Overall, 11" × 8.25" × 2.5"
(279.4 mm × 209.6 mm × 63.5 mm)
Weight 3 pounds (1.36 kilograms)

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CHAPTER 2 – COMPUTER INSTA ATION
2.1 Overview
n this chapter we will connect the PK-232 to the RS-232 Serial port of your Computer or
Computer Terminal. After the Serial connection has been made we will perform a quick
check of the PK-232 internal software. Finally we will check the PK-232's internal modem by
performing a Packet "loop-back" test. When you have completed this chapter, you will be
ready to connect the PK-232 to your receiver or transceiver and begin using it on the air.
2.1.1 Equipment Required
You will need the following for this chapter:
o your PK-232 Data controller;
o a 13.6-volt DC, 1-amp (or greater) regulated power supply such as those sold by
Radio Shack (or an AEA AC-4); (the power supply must be able to supply at least
12 VDC to the PK-232 while it is operating under load);
o the included PK-232 DC power cord unless the AC-4 is used;
o your Computer or Computer Terminal;
o a Communications or Terminal Emulation program for your computer;
o the included RS-232 cable with 25-pin "D" connectors on each end; (do not use a
3rd-party RS-232 cable with more than pins 1-8 and 20 connected);
o one of the included 5-pin shielded "Radio cables"; (note that the radio cables may
arrive as a single 10-ft. cable which should be cut in half producing two 5-ft. ca-
bles)
o wire cutters and strippers or a small pocket knife, a small straight-blade screwdriver
and a medium phillips-head screwdriver.
2.2 Unpacking the PK-232
Carefully remove the PK-232 from the box and its plastic bag. nspect the unit for signs of
damage that may have occurred in shipping. f there is visible damage, please contact the
dealer or shipper. Do not attempt to install or use a damaged PK-232. We will be discussing
some of the Controls, ndicators and Connections in this installation so take a few moments
to familiarize yourself with them. The figures on the next pages may help with their loca-
tions.
2.2.1 Connecting Power
MAKE SURE YOUR POWER SUPPLY S OFF AND UNPLUGGED BEFORE W R NG !
o Locate the PK-232 Power Cable in the accessory bag. Strip off just enough insulation
from the ends to connect it to your 12-14 Volt DC regulated power supply.
o The Center pin of the coaxial power plug is POS T VE. Connect the lead with the
White stripe to the POS T VE (+) lead on your power supply. Check this with an
Ohm-meter if you have one.
o Connect the solid Black (GROUND) lead to the NEGAT VE (-) lead of your power
supply. (The AEA AC-4 Wall Transformer is already wired correctly.)
o Connect the Coaxial power plug to the 13 VDC Power Receptacle on the left rear of
the PK-232. DO NOT CONNECT YOUR COMPUTER YET.
o Plug in your power supply or AC-4 and turn on power. Turn on the PK-232 by de-
pressing the Power Switch on the front of the unit.

PK-232 MBX – OPERAT NG MANUAL COMPUTER NSTALLAT ON
4/91 2-2 17
WATCH CLOSELY FOR THE FOLLOW NG:
At power-on the four LEDs on the left of the PK-232 should light for 1 second and
the BAUDOT LED should then light and remain lit.
f this occurs, then switch OFF the PK-232 and move on to section 2.3.
f no LEDs light then re-check the above steps to insure that 12-14 VDC is available at the
power plug and the center pin is POS T VE.
f any LEDs other than the BAUDOT LED light then the PK-232 has probably been initial-
ized. f the PK-232 has been initialized it is ready to communicate with a computer or ter-
minal at a specific baud rate (probably 300, 1200, 2400, 4800 or 9600 bits/sec). f you
know what this baud rate is then you should continue with the installation at section 2.3
keeping this in mind.
f you do not know what baud rate the PK-232 has been initialized to then you should re-
move the Lithium battery jumper JP1 from the Berg posts which will reset the PK-232. To
do this, do the following:
o Disconnect power and all cables from the PK-232 and turn the unit upside down.
o Locate the hole immediately behind the RAD O 1/RAD O 2 switch.
o With needle-nose pliers or a tweezers gently lift the shorting jumper up off the Berg
Posts.
o Wait approximately 2 minutes to insure that the memory has "forgotten" the old pa-
rameters.
o Carefully replace the jumper over the posts.
f the above did not restore proper operation of the PK-232 frontpanel LEDs, then contact
Timewave Technical Support Department as described in the front of this manual.
Figure 2-1 PK-232 Front Panel Controls and indicators
Figure 2-2 PK-232 Rear Panel Connections and Controls

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2.3 Connecting Your Computer or Computer Terminal
MAKE SURE THE PK-232 AND YOUR COMPUTER ARE SW TCHED OFF
o Locate the PK-232 Serial Cable. Connect the 25-pin Male connector to the RS-232
/O connector on the rear of the PK-232. f you are not using an AEA RS-232 cable,
make sure that the cable you are using has no other pins than 1-8 and 20 con-
nected.
o Connect the other end of this cable (Female DB-25) to the RS-232 Serial Port of
your personal computer or Computer Terminal. Details on connecting to common
machines are listed below.
NOTE: This cable was designed to connect directly to a 25-pin BM-PC compatible
RS-232 port. Many machines on the market today support this configuration.
Some less-common machines are listed in section 2.6. Please make certain
you have properly connected the PK-232 to your RS-232 computer or Com-
puter Terminal then proceed to section 2.4.
2.3.1 IBM-PC/XT/AT and Compatibles
BM compatible 25-pin RS-232 serial ports should connect directly to the supplied serial
cable. Some BM compatible machines are equipped with a 9-pin serial port. For these
machines a DB-9 to DB-25 adapter should be obtained from a Radio Shack store or a
computer dealer.
2.3.2 Apple Macintosh Series of Computers
Timewave does not sell a terminal program for Apple computers. A few third-party pro-
grams are available and can be found by searching the World Wide Web.
2.3.3 Computer Terminal
f you have an RS-232 Computer Terminal, sometimes called a Dumb-Terminal, Smart-Ter-
minal or ASC -Terminal, you may need to change the gender of the cable provided with
your PK-232. This can be accomplished with an inexpensive double-male RS-232 gender
changing adapter available from Radio Shack and other computer dealers. The Radio
Shack part number is 26-243.
2.4 Setting Up Your Communications or Terminal Software Program
f you will be using your PK-232 with a Computer, you will need to read parts of this section
to set up your Communications or Terminal Program Software. f you will be using your PK-
232 with a Computer Terminal you will not need any software and may skip to section 2.5.
Setting up a Communications program for your PK-232 is very important.
How your screen looks when you use your PK-232 depends completely on your Communica-
tions program. AEA currently makes available programs for the BM-PC and compatibles, the
Apple Macintosh and the Commodore 64/128 computers. These products are customized for
radio communications and are available at extra cost from your AEA dealer.
The PK-232 operates in much the same manner as a telephone modem and most telephone
modem Terminal Programs will control a PK-232 quite nicely. Some of these programs are
"Public Domain" which means they are FREE. Other Terminal Programs are "Share-ware"
which means you may get them from a friend and try them before you buy them. Whether

PK-232 MBX – OPERAT NG MANUAL COMPUTER NSTALLAT ON
4/91 2-4 19
you are using an Timewave program or one of your own choosing, see the section below for
the particular type of computer you plan to use.
2.4.1 Terminal Programs for IBM PCs and Compatibles
Although you can use almost any terminal program with your BM compatible, Timewave
recommends PK-TERM for Windows from CSS (www.cssincorp.com) which provides many
features not available in "telephone modem" programs.
f you already have the a Timewave terminal program, follow the program manual and in-
stall the software on your computer. You should also read through the PACKET OPERA-
T ON chapter of the manual. Familiarity with Packet operation will be necessary for per-
forming a quick-check of the PK-232 in section 2.5 of TH S manual.
As we mentioned above, an AEA program is not required to use the PK-232. Many termi-
nal programs can be found throughout the amateur radio community or can be down-
loaded from the internet.
A partial list of PC programs for the PK-232 includes:
XPWin, PROCOMM, CROSSTALK-XV , SMARTCOM, RELAY, B TCOM, QMODEM, PCTALK,
CTERM, HAMCOM, PACKCOMM, PACKTALK, HAMPAC, LANL NK, MSYS, YAPP and the ter-
minal program included with Microsoft Windows 3.0 (TM) and Hyperterminal included
with Windows 95/98.
Follow the installation directions that come with the Terminal program you wish to use.
Once installed on the computer, you should start the program and set the communication
parameters for the following:
Data Rate = 9600 bits per second
Data bits = 8
Parity = none
Stop bits = 1
Once these settings have been achieved and the correct serial communications port cho-
sen, you may proceed to section 2.5.
2.4.2 Terminal Programs for the Apple Macintosh
Although you can use almost any terminal program with your Macintosh, AEA used to sell
the MACRATT with FAX program which provides many features not available in "telephone
modem" programs. You may be able to buy a used copy of MACRATT at a hamfest or on
the internet.
f you already have the MACRATT program, please follow the program manual and install
the software on your computer. You should also read through the PACKET OPERAT ON
chapter of the MACRATT manual. Familiarity with Packet operation of MACRATT will be
necessary for performing a quick check of the PK-232 in section 2.5 of TH S manual.
As we mentioned above, an AEA program is not required to use the PK-232. Many termi-
nal programs can be found throughout the amateur radio community and can be down-
loaded from the internet.
A partial list of Macintosh programs for the PK-232 includes:
MAC TERM NAL, RED RYDER, M CROPHONE, SMARTCOMM and MOCK TERM NAL.

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Follow the installation directions that come with the Terminal program you wish to use.
Once installed on the computer, you should start the program and set the communication
parameters for the following:
COMPAT B L TY:
1200 bauds, 7 bits/character, even parity, Handshake XON/XOFF, FULL-DUPLEX, Modem
connection, "telephone" port.
Once these settings have been achieved, proceed to section 2.5.
2.5 System Startup and oop-back Test
Make sure that you have connected your PK-232 to a 12-14 Volt DC power source and to the
RS-232 port of your computer or Computer Terminal. f you are using a computer, you must
also have a communications program and be familiar with its operation. You are now ready
to begin the following PK-232 Startup and Loop-back check-out procedure.
1. Don't connect any cables to your radio yet!
2. Set the front-panel RAD O 1/RAD O 2 switch to RAD O-1 (out).
3. Remove one of the 5-wire shielded Radio Cables from the PK-232 accessory bag. f
you have a single 10-Ft. cable with 5-pin connectors on each end, it should be cut
in half.
4. With your pocket knife or wire strippers, remove about an inch of cable jacket ex-
posing the five colored wires and the shield-wire.
5. Strip about ¼ inch of insulation from the GREEN and WH TE wires. Short the
GREEN and WH TE wires together by twisting gently.
6. Plug this Radio Cable into the 5-pin RAD O 1 socket on PK-232's rear panel. Make
sure that the cable exits the PK-232 downward.
7. Set the AFSK level on the right-rear of the PK-232 to 50 % rotation (straight up and
down) using a small screwdriver.
8. Turn on your computer. Load and run your communications program.
f you are using Timewave program, follow the program instructions to enter the
Packet mode, then skip to step 11.
f you are using another Terminal Program or a Computer Terminal, Set your computer's ter-
minal program to:
o 1200 bauds (if available);
o seven-bit word;
o even parity;
o one stop bit.
NOTE: You may use other terminal baud rates with the PK-232 – we recommend
1200 baud here to keep this procedure easy and consistent.
9. Press the PK-232's power switch to the ON position.
The four LEDs clustered at the left side of the panel will light briefly and then the
BAUDOT LED will light. f any other LEDs light, the PK-232 has been previously ini-
tialized. f you know the terminal baud rate the PK-232 has been set to, you may
proceed to step 11; otherwise you must remove the JP1 battery jumper as de-
scribed in section 2.2.1 before you proceed.
f your serial port is operating at 1200 bauds as we recommend, you'll see the
"autobaud" message: