Hal Communications CT2100 User manual

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INSTRUCTION
MANUAL
HAL COMMUNICATIONS CORP.
BOX 365
URBANA, ILLINOIS 61801
QU ALITY COM M U NICATIONS EQ UIPM ENT

cT2100
COMMUNICATIONS
TERMINAL
Copyrlght, O 1981 by HAL Communications CoEp., Urbana, Illinois.
Printed in the United States of America. All rights reserved.
Contents of this publication may not be reproduced in any form withoub
Lhe written permission of the copyright owner.
February, 1984 Printing

CONTENTS:
CHAPTER
CHAPTER
CHAPTER 5. CONNECTIONS TO THE C'121
5.1 Normal Amateur Sta
5.2 Use of the RS232 D
5.3 Use of the RTTY L0
Controls.....r.
00
tion Connections . . . ., . .
ata Connections . . . . . . .,
0P Data Conneetlon . . . .' .
CT21OO COMMUNICATIONS TER}4INAL
INTRODUCTION . . . . . . . . . . . . . . . . . . . . .
1. UNPACKING AND INSPECTION . . . . . . . . . . . . . . .
2. SIMPLE HOOK-UP FOR THE EAGER AND IMPATIENT....
2.1 Connections to the CT2100
2.2 Presetting CT2100 Controls
2.3 Presetting the Transceiver
3.1 Connecting the CT2100 to
3.2 Reeeiving RTTY Signals
3.3 Low Tones or High Tones?
5
5
6
7
7
8
2.4 RTTY 0peration
?.5 Morse Operation aaaaaataaaaaaaaaa
CHAPTER 3. RECEIVING WITH THE CTzlOO Your Receiver aataa
3:l H:::l,ii!"i";"; ioa"' . : : : . : : : . : : . : :
CHAPTER 4. TRANSMITTING WITH THE CT21OO . . . . . . . . . . . . .
4.1 The KB2100 Keyboard . . . . . . . . . . . . . . .
4.2 Transmit Features . . . . . . . . . . . . . . . .
4.3 Use of the KSR Keyboard Entry Mode . . . . . . .
4.4 Use of the Sp1lt Screen Keyboard Mode . . . . . ,
4.5 Use of the HERE-IS Messages . . . . r . . . . ! .
4.6 Use of the MSG2100 Option . .' . . . . . . . . .
4.7 Special Consideratlons When Transmitting Morse .
4.8 Special Considerations When Transmitting Baudot .
I:?, ;Bi")"1,;"ffi:::ii:1":".*:": :":':'':':':u.ol'l'. :
4.11 Synchronous Idle Feature
4.12 The N0RM/L00P Transmit feature
4.13 The KOS Feature . . . . . . .'. . . r . . . . . .
10
10
11
14
17
1g
23
23
25
26
28
30
31
31
35
39
43
44
45
45
48
4g
51
52
52
53
54
55
57
OJ
66
5.4 Connection of an ASCII Printer
5.5 Connection of an Audio Tape Recorder . . . . . .
5.6 RTTY Tuning Oscilloscope Connections , . o . . .
5.7 Using a Television Set as a Monitor . . . . . . .
5.8 RF-Inducgd Problems . . . . . . . . . . . . . . .
5.9 Power Line Voltage and Frequency Changes . . . .
5.10 User Adjustments

CONTENTS:
CHAPTER 6.
Figure 'l .
Figure 2.
Figure 3.
Figure 4.
Figure 5.
Figure 6.
Figure 7.
Figure B.
Figure 9.
Figure 10.
Figure 1 1.
Figure 12.
Figure 1 3.
TABLES:
TABLE 1.
TABLE 2.
TABLE 3.
TABLE 4.
CASE OF DIFFICULTY IN
o. t
6.2
o.J
Care and Feeding of
Typical Operational Your CT2100 Problems......
57
67
69
34
37
41
42
Repair Procedures . . . . . . . . . . . . 71
cHAprER 7. SPECTFTCATToNS . . . . . . . o . . . . . . . . . . . . 73
APPENDIX: PROGRAMMING AND INSTALLING THE MSG21OO . . . . . . . . BO
1. Specifying the Messages . . . . r . . . . . . . . B0
3'. #:::]ffi::;";: iii,'il3x,;,; . : : : : . : . : : E3
LIMITEDWARRANTY... . . . . O t.. . . ... .. . 85
ILLUSTRATIONS:
The CT2100 and KB2100
Simplified CT2100 Connections
The K82100 Keyboard
Morse ltieight Timing . . . . . . . . . . . . r . . . .
Connections to the CT2100
KOS Cireult Conneetions
Typicai Video Detector . . . . . . . . . . . . . . . . 56
Modified Vldeo Dectector . . . . . . . . . . . . . . . 56
RFI Reduction Techniques . . . . . . o . . . . . . . . 58
RFI Power Line Filters o . . . . . o . . . . o . . . . 60
Power Transformer Voltage Tap Connections . . . . . . 64
Power Frequency Change Jumpers . . . . . . ., . . . . 65
User Adjustable Controls . ., . . . . . . . o . . . . 67
Z
4
22
33
47
49
CONTINENTAL MORSE CODE . .
BAUDOTDATACODE.............
DISPLAY SYMBOLS FOR THE ASCII CODE . .
ASCII DATA CODE

CT21OO USER },IANUAL
INTRODU CTION
This manual describes the installation and operation of the FIAL CT2100
Communications Terminal. The fechnical details with schematic diag-
rams and user-repair procedures are described in a second publication,
the CT2100 Customer Maintenance Manual, available separately from HAL
Communieations Corp. or its designated dealers and representatives.
The features of the CT2100 have been designed for convenient and stra-
ight forward customer use; many features are self-explanatory from a
close examinatlon of the CT2100 front pane1, rear pane1, screen dis-
p1ay, ot' the keytops of the KB2100. However, like many sophisti.cated
electronic devices, there are some features and operator techniques
which you may not understand until you have read this manual. You
should plan to devote several hours to becoming familiar with your
cT21 00 .
However, there are many hobbyists, including this writer, who are
eager to try the new frgadgetff and lack the patience to plow through
chapters of technical talk without at least turning it on and trying
out something. Therefore, for the eager and impatient new owners, we
offer Chapter 2 SIMPLE HOOK-UP AND OPERATION FOR THE EAGER AND IMPA-
TIENT. After you have your CT2100 running as descr^ibed in Chapter 2,
plea-se then sit down and read the rest of this manual; yout1I find
the CT2100 will do a lot more things than can be outlined in the sim-
pllfied instruetions.

PAGE 2
Figure 1The CT2100 and K82100

PAGE 3
CHAPTER 1
UNPACKING AND INSPECTION
When you unpack your CT2100 and K82100, carefully lnspecL the shipping
earton and each cabinet for shlpping damage. Any evidence of shipping
damage should be immediately reported bo your supplying dealer or
shipping carrier. Be sure to save all packing materials if damage is
found bhe shipping carrier will want to inspect them for any insu-
ranee c1aim. Before discarding the packing materials check Ehat all
parts and accessories are accounted for. Check the accessories aga-
inst the following list. If any are found missing, double-eheck the
packing for loose parts and then notify eiLher your dealer or HAL Com-
munications Corp. of the shortage. Please specify the HAL part
number !
Accessory parts:
Accessories Packed With CT2100:
1 - 333-17250 AC Power Cord
16 310-35012 Phono Pin Plug
2 770-05001 0.5 Ampere slow-blow fuse
960-02051 Video eable
: B7o-02110 3:i'fl3.:?31 fil:*.ming Forms
Accessories Packed With K82100:
1 - 355-00755 7 Ft. Coil Keyboard Cable
ti**ti**t3*it***t$***lt*r(*****f **tin*ritt**nIiHtI**ri***n*tt*lt*lcltrS*Ilt***tinti*tt*ri*tt*
CAUTION !
It
A SERIOUS SHOCK HAZARD MAY EXIST I{HEN CONNECTING *
THE CT21OO TO OTHER EQUIfMENT. BEFORE I,IAKING ANY *
CONNECTIONS, BE SURE TO DISCONNECT THE CTz1OO AND *
OTHER EQUIPMENT FROI',I THE AC POWER LiNE. *
*
***l3l(**lt***it****n**n**tt***t(n***tilt*ri*.rittrililit3n*ri**nntT**xt6n*it*tinnitii***tt*n*
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CHAPTER 2
SIMPLE HOOK-UP AND OPERATION FOR THE EAGER AND IMPATIENT
PAGE 5
in this manu-
without read-
enough infor-
need to read
conveniences
Although there are many features of the CT2100 explained
31, you may wish to first trplug-it-intr and rrtry-it-outrr
ing the whole book. This section of the manua] presents
mation to start using the CT2100, but you will eventually
Chapters 3, 4, and 5 to take fu1I advantage of the many
included in your CT2100.
2.1 Conneetions t,o the CT2100
Refer to Figure 2 and not,ice the various connections you may make to
and from the CT2100. For a start, it is recommended that you make the
following connections at the present and leave the other conneetions
until aft,er you have read Chapters 3, 4, and 5. By all means, do not
connect the CT2100 or other slation equipment to the AC power source
until all other conneetions have been made.
1. Connect a good ground wire (1/4't shield braid preferred)
between the CT2100 cabinet, transceiver cabinet, and all
other station equipment eablnets.
2. Connecb a shielded audio cable between the reeeiver speaker
(audio) oufput and the CT2100 RCVR IN connector.
3. Connect a shielded audlo cable between an external speaker
(4 16 ohms) and the CT2100 AUDIO MONITOR connector.
(Optiona1, but recommended)
4. Connect a shielded audio cable between the transmitter mi-
crophone audio input and the CT2100 XMIT OUT conneetor.
Check your transmitter manual some lransmitters have +12
VDC on the mike input lead to run remote controls; use a 1
uF blocking eapacitor at the qike eonnector to prevent dam-
age to such a transmitter. -
5. Conneet a shielded audio cable between the transmitter
push-to-talk input and the CTz100 KOS SWITCH connector.
(Steps 4 and 5 may be combined in a 2 conductor frstereofl
cable wlth the transmilter end eonneeted to a microphone
eonnector; these steps are only necessary if you intend to
transmit during these preliminary tests).
6. Connect a coaxial eable between the video input of your mon-
itor and the CTz100 VIDE0 T0 MONITOR connector.
7. Connect the KB2i00 to the CT2100 with lhe coil cord supplied
(K82100 connector on CT2100),
8. Connect lhe CT2100, Video Monitor, and transceiver to the AC
power souree; do not turn-on the equipment yet. Use a
grounding type of AC out,let lf at all possible.

PAGE 6
2.2 Presetting CT2100 Controls
Before applying any power to the transceiver or the CT2100, preset the
controls as follows:
DATA:
DISPLAY:
TXlRX
CONTROL:
MODEM:
T/O:
MONITOR
Now, turn on the
top line of the
SPEED =
MODE =
PAGE CYCLE =
LINE CYCLE =
STATUS =
REV VIDEO =
USOS =
CLEAR SCRN =
HDX/FDX =
IDLE =
MAN TXIAUTO =
KOS =
RTTY/MODEM =
HIGH/LOhI =
NORM/REV =
AUTO =
RTTY SHIFT =
AUDI0/R5232 =
RCVE/TAPE =
N0RM/L00P =
OUTPUT/INPUT =
VOLUME =
as turned
iln
ltil
Itil
on (45 BAUD)
'' ( BAUDOT )
" (Page 2)
n (72/ line )
on (button in)
either position
on (button in)
as turned on
HDX (button in)
off (button out)
AUTO (button out)
off (button out)
RTTY (button in)
LOW (button out)
NORM (button in)
off (button out)
170 (right button in)
AUDIO (button in)
RCVE (button in)
NORM (button in)
INPUT (button out)
turn on CT2100 power;
set to n12 orelocktr
video monitor power and see
display: the following text on the
CT2100 V1.xP2
45 BD BAUDOT TX OFF USOS
This line is the status line and shows the CT2100 code and data rate
seleeted, condition of the TXIRX data outpub, and, in this case that
the Unshift 0n Space (USOS) feature has been selected. Also shown is
that page 2 (of 2 available) is being viewed. The rtvl .xrt shows the
production verslon of internal computer program (ttsoftwarerr) installed
in your unit.
If you use a monitor other than that supplied by HAL, you will prob-
ably need to adjust its horizontal and vertical size and position con-
trols. Be sure that you can view all four edges of the TV raster on
the screen.