microHAM DigiKeyer User manual

microHAM © 2006 All rights reserved
DIGI KEYER
microHAM
fax. [phone]
e-mail : su [email protected]
home age : www.microham.com
Release 1.0
Joe Subich, W4TV
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microHAM © 2006 All rights reserved
TABLE OF CONTENTS
CHAPTER PAGE
1. WARRANTY .................................................................................................................................... 3
2. PACKACE CONTESTS ................................................................................................................... 3
3. IMPORTANT WARNINGS ............................................................................................................... 3
4. INSTALLATION ............................................................................................................................... 4
Pre aring for Use........................................................................................................................ 4
Installing microHAM USB Device Router .................................................................................... 5
Installing the USB Driver.............................................................................................................. 6
Configuring the USB Codec ........................................................................................................ 7
Creating and Using Virtual Ports ................................................................................................ 9
5. PANEL DESCRIPTION ................................................................................................................. 10
Rear Panel ............................................................................................................................... 10
Front Panel ............................................................................................................................... 11
6. microHAM DEVICE ROUTER ....................................................................................................... 12
Menu: Router ............................................................................................................................ 12
Menu: Preset ............................................................................................................................ 13
Menu: Device ............................................................................................................................ 14
Menu: Virtual Port ..................................................................................................................... 15
Menu: Hel ............................................................................................................................... 16
Device Configuration ................................................................................................................ 16
Ports: Control .......................................................................................................................... 17
Ports: FSK ................................................................................................................................ 17
Ports: 2nd FSK ........................................................................................................................... 18
Ports: CW ................................................................................................................................. 19
Ports: PTT ................................................................................................................................ 19
Ports: 2nd PTT ........................................................................................................................... 20
Ports: Squelch .......................................................................................................................... 20
Keying: Audio ........................................................................................................................... 21
Keying: PTT................................................................................................................................22
Keying: FSK from Keyboard ..................................................................................................... 22
FSK Messages .......................................................................................................................... 23
7. EXTERNAL KEYBOARD .............................................................................................................. 24
8. FUNCTIONN TEST ........................................................................................................................ 25
9. SPECIFICATIONS ......................................................................................................................... 26
Minimum Requirements ........................................................................................................... 26
Hardware S ecifications .......................................................................................................... 27
10. FEATURES AND FUNCTIONS ................................................................................................... 28
APPENDIX A - DB15 RADIO CONNECTOR .................................................................................... 29
APPENDIX B – APPLE OS 10 INSTALLATION ............................................................................... 30
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microHAM © 2006 All rights reserved
1 - WARRANTY
microHAM warrants this roduct for 3 years. The roduct must not be modified in any way, exce t
configuration or the warranty is voided. The warranty does not cover damage caused by im ro er or
abnormal use, failure to follow instructions, im ro er installation, lightning, or excessive voltage. The
roduct will be either re aired or re laced, at our discretion. The only cost will be the cost of return
shi ing.
microHAM assumes no liability or res onsibility for damage to other devices or injuries to ersons as a
consequence of using our roducts.
If the terms of the above warranty are not acce table, return the unit, all its associated documents and
accessories in the original ackage, re aid, to microHAM or to your su lier for a full refund less shi ing
cost.
2 - PACKAGE CONTENTS
The roduct includes DIGI KEYER, USB cable, and CD-ROM containing the microHAM USB Device
Router rogram and documentation.
If the shi ment is incom lete, lease contact us at the following address:
E-mail: su [e-mail]
fax : [phone]
by Post: microHAM s.r.o.
Nadrazna 36
90028 Ivanka ri Dunaji
SLOVAKIA
3 - IMPORTANT WARNINGS
You must set the CAT level jum ers inside the DIGI KEYER
before using it for the first time.
If you ower Digi Keyer from an external ower su ly ALWAYS
check the olarity of the external 13.8 V su ly.
If your radio includes u loadable firmware, always erform any u load
from an RS-232 (COM) ort on the com uter - NOT through DIGI KEYER.
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microHAM © 2006 All rights reserved
4 - INSTALLATION
Installing DIGI KEYER consists of several ste s:
1) re aring DIGI KEYER to work with your radio
2) installing microHAM USB Device Router (the control and interface software)
3) installing the USB drivers
4) configuring the Windows USB Audio Device
5) configuring Router
Pre aring DIGI KEYER for Use
1. Remove the to cover from the DIGI KEYER and set the CAT jum ers as shown in the following chart.
The CAT interface jum ers must be configured to select the ro er level for each radio ty e.
RS-232 levels: Elecraft K2, JRC JST-245, Kenwood
TS-480, 570, 870, 2000, Ten-Tec Argonaut, Ju iter,
Omni V, Orion, Pegasus, Yaesu FT-847, 920, 1000MP,
Mark V, Mark V Field, 2000, 9000
IF-232 levels: Kenwood TS-140, 440, 450, 680, 690,
711, 790, 811, 850, 940, 950
FIF-232 levels: Yaesu FT-100, 736, 747, 757GXII, 767,
817, 840, 857, 890, 897, 900, 980, 990, 1000, 1000D
CI-V levels: All Icom radios, Ten-Tec Omni VI
Note: the CAT interface is not configured at the factory.
2. Plug the DB15M on the radio cable set into the DB15 connector on the rear anel of the DIGI KEYER
and lug ALL connectors from the cable set to the a ro riate jacks at the rear anel of your
transceiver. Each connector on the radio interface cable is marked same as the matching jack on your
transceiver. DO NOT turn on the radio or external ower su ly at this time.
3. If the radio cable ends with leads for external ower, connect these leads to a 12-16V DC ower su ly.
Be sure to observe the proper polarity.
4
IF232
CI-V
FIF232
RS232

microHAM © 2006 All rights reserved
Installing microHAM USB Device Router
To install Router click on the Install USB Device
Router link on the installation CD or download the
most recent installation ackage from the microHAM
web site: www.microHAM.com/downloads.html.
If you download an u dated ackage, click on
"urouter_release_xx_xx.exe" (xx_xx is version) to
start the installation.
The Windows setu utility will start and ask into
which folder Router and its su orting files should
be installed. Note: unless you have a very strong
reason to install Router elsewhere, lease acce t
the default location.
When the Router installation is com leted,
UNCHECK the "Launch microHAM USB Device
Router" box.
The USB device driver must be installed before
starting Router.
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microHAM © 2006 All rights reserved
Installing the USB DRIVER
Connect the USB cable to the DIGI KEYER USB
jack, lug the other end of the USB cable into an
o en USB ort in your com uter.
The automatic Wizard will a ear, insert the
installation CD into the CDROM drive and select
"No, not this time" when asked to connect to
Windows U date. Then click "Next."
Now, click Install from s ecific location and use the
ath to the Router installation directory.
The default ath is:
C:\Program Files\microHAM\drivers\d2xx
Wait until the driver is co ied.
During installation on Windows XP a driver
certification dialog will a ear. Ignore this message
and click "Continue Anyway".
If the USB driver is successfully installed, you should see a "microHAM USB Device" driver in Universal
Serial Bus controllers section of Windows Device Manager without any exclamation mark.
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microHAM © 2006 All rights reserved
Configuring the USB Audio CODEC
Windows will automatically install the USB Audio
Device driver to su ort the USB Audio CODEC in
DIGI KEYER.
Windows automatically selects any newly installed
Audio Device as the default device for Sound
Playback and Sound recording. This is undesirable
as Windows Sounds would be layed through DIGI
KEYER and onto the air!
O en "Sounds and Audio Devices" in Control Panel
and reset the Default device for Sound Playback
and Sound Recording to your com uter's rimary
sound device.
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microHAM © 2006 All rights reserved
Configuring the microHAM USB Device Router
The MicroHAM USB Device Router (Router) rogram rovides a Windows com atible configuration tool for
microHAM USB Devices (DIGI KEYER as well as microKEYER, CW Keyer and USB Interfaces) and
software interface to other Windows a lications (loggers, digital mode software, etc.). The software
interface is rovided as Virtual erial Ports.
To configure and use DIGI KEYER with Windows based a lication rograms it is necessary to have
installed the USB driver, started the Router, and a lied ower to DIGI KEYER by turning on the attached
radio or external ower su ly. Router is then configured to match the requirements of the a lication
(logger or digital mode) software.
DIGI KEYER Status
When the USB driver is installed correctly and DIGI
KEYER is owered from a radio or external 12V DC
su ly Router will show a device tab with a GREEN
check beside the device name (DIGI KEYERI).
When Router shows a YELLOW “X” insted of a green
, it means the USB driver is correctly installed but
DIGI KEYER is not receiving ower from the radio or
external su ly.
When Router shows a RED “X” insted of a green  , it
means the device is disconnected and Router does not
see the USB art of DIGI KEYER.
This ha ens when the USB cable is un lugged or the
USB driver is not correctly installed.
Initial Setu
Router must be used to configure DIGI KEYER to
function ro erly. The device configuration tab (in the
red rectangle) is used to setu each art of the DIGI
KEYER – virtual orts for communicating with the
a lication (Ports), audio levels, PTT and keyboard
FSK (keying), and stored FSK messages (FSK
Messages).
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microHAM © 2006 All rights reserved
Creating and Using Virtual Serial Ports
microHAM Router rovides
a set of virtual serial orts
which allow Windows
a lications (loggers and
digital software) to work
with DIGI KEYER just as
they would work with "real"
(hardware) serial orts.
In order to use these virtual
Ports, you must first define
the virtual orts and then
assign each function
(radio control, PTT, CW,
FSK, etc.) to a virtual ort.
You may create and assign
the orts manually, load
the default tem late, or
load an a lication s ecific
tem late if one is availble
for your articular rogram.
To load the default tem late, select Device | Load Tem late and select "dk_default.t l" from the available
tem lates. The default tem late will create virtual orts at COM4, COM5, COM6, COM7 and assign radio
control (CAT) to COM4, PTT for RTS on COM4, CW to DTR on COM5, and FSK to COM6. The default is
com atible with many logging rograms and digital mode ackages.
If you alredy have orts defined at COM4, COM5, COM6 or COM7 or want to
define other virtual orts, you may do so by selecting Virtual Port | Create and
selecting the orts you need for your articular set of a lications.
DO NOT define a ort that is already in use (for exam le, COM1 or COM2
which are hardware orts on many motherboards) or a virtual ort that is used
by another USB device.
Once you have defined your initial confirguration, you may want to save it both as the "Power U settings"
(Device | Store as Power u Settings) and as a Preset (Preset | Save As) in case you ever need to reset
DIGI KEYER.
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microHAM © 2006 All rights reserved
5 PANEL DESCRIPTION
All connectors for connecting the com uter, radio and accessories are located on the rear anel.
Rear Panel
(1) – PA PTT: PTT output for Power Amplifier
Ground during transmit
TIP - Signal
SHELL - Ground
(2) - LNA PTT: Control out ut for Low Noise Am lifier
Ground during transmit
TIP - Signal
SHELL - Ground
If the jum er is in SS osition, o en collector switching
transistor is connected to the PAPTT or LNAPTT out ut jack.
The transistor can switch u to 48V/1.5A. This osition is
a ro riate for modern Power Am lifiers with electronic keying
and LNA by ass relays .
Check manual of your PA and LNA to be sure the ower requirements do not exceed the transistor rating.
If the requirements exceed 48V/1.5A set the a ro riate jum er to the RE osition. This osition connects
the relay contact to the out ut jack. Maximum rating for the relay is:125VAC/2A or 60VDC/2A.
TIP: If you are not sure about keying voltage of your am on LNA, use the RE osition.
(3) - RADIO: DB15F connector for radio interconnection – a detailed descri tion is in A endix A
(4) - REM: MiniDIN6 for PS/2 keyboard or numeric key ad.
(5) - USB: USB B connector for com uter connection. Connect a standard USB A-B cable.
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microHAM © 2006 All rights reserved
Front Panel
(1) – POWER
YELLOW color indicates when unit is owered
(2) – TX
Adjusts transmit audio level (drive)
(3) – CW/FSK
RED color indicates when CW is active, GREEN indicates when FSK is active
(4) – SQL
GREEN color indicates when squelch is active
(5) – PTT
RED color indicates when PTT is active
(6) – RX #2
Adjusts receive audio level from the second (sub-, aux-, etc.) receive channel.
(7) – RX #1
Adjusts receive audio level from the main receive channel.
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microHAM © 2006 All rights reserved
6. microHAM USB DEVICE ROUTER
General Router settings can be invoked by clicking on Router main menu.
ROUTER MENU
Restore Router Settings: used to restore settings from a urs file created by the backu command.
Restoring a backu will delete all current Router settings including resets, use it carefully!
A urs file can be used only on the system which generated the file (the file contains the unit serial
number) and a com uter with same ort assignments.
Backu Router Settings: used to create backu urs file.
This file contains Router settings for all Devices defined in Router including Presets.
O tions | General - Load Router on Start-u : when checked, Router will start automatically each time
the com uter is started or rebooted.
O tions | General - Start Router Minimized: when checked, Router will started minimized
O tions | Digital Band Ma : Customizable band boundaries for the digital modes used for automatically
selecting VOICE/DIGITAL settings. The Digital Bandma has no effect on the DIGI KEYER.
Minimize: Clicking this will minimize Router to the system
tray at the bottom right corner of the Windows
Taskbar (the "System Notification Area"). .
TIP: When Router is minimized you can restore it by
double-clicking on the Router tray icon.
Exit: Clicking on this item will terminate Router.
Note: when Router is terminated, a lication software will be unable to communicate with DIGI
KEYER and the radio.
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microHAM © 2006 All rights reserved
PRESET MENU
The requirements of each a lication (logging, control and digital
mode rograms) are different and each rogram handles radio
control, CW / FSK/PTT keying, and the sound card its own way. In
some instances what will work for one a lication may not work
ro erly with another. To get maximum erformance from DIGI
KEYER, you may wish to customise the settings for each
a lication.
For easy switching among a lications, Router su orts u to 12
user definable Presets. Different DIGI KEYER configurations can
be stored in these resets and recalled almost instantly sim ly by
clicking on the reset button.
Each reset contains the settings for all devices connected to, and
controlled by Router. For exam le, if Router controls a DIGI
KEYER, a microKEYER, a CW Keyer and a USB Interface, each
reset remembers the settings for all four devices including the
assignment of COM orts and the contents of all sub-tabs exce t
contents of the FSK/CW Messages tab.
There are three ways to a ly a reset once it is created:
1. Click on Preset and select the desired reset from the ull-down menu.
2. Click on a reset button. To have buttons visible in Router, Preset | Show Buttons must be checked.
When the settings from a reset are a lied a green light located in the reset button is lit. This green
light lit ONLY when all settings in Router are same as were stored in reset. If some arameter is
changed, light is turned off, indicating that the current settings are not same as stored in the reset.
3. By right clicking on the system tray icon when the Router is minimized.
All resets and the current router configuration are stored to the registry when
Router is closed and recalled when Router is loaded.
Save as - Saves the current Router settings to a reset for future use.
Rename - Allows renaming of an existing reset.
Delete - Delete chosen reset.
Show buttons - When checked, Router shows the reset buttons.
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microHAM © 2006 All rights reserved
DEVICE MENU
Router can control several devices. This allows configuring the settings for all connected devices at one
time by using the Presets described in 6.2
Each device has its own tab ( age) in the main
Router notebook. The content of a device tab
de ends on device ty e. Adding a device is
automatic the first time Router detects a su orted
device (USB driver). Once detected, a device
remains in Router even though device is
disconnected. Each device is identified by roduct
identification number and a unique serial string.
Rename – Creates a custom device name. This is
useful if two or more devices are connected to the
Router. For exam le CW KEYER, micro Keyer and
USB Interface II can be renamed to more identifiable
names as shown here..
Delete - Removes a device from the Router. Only disconnected devices with a
RED “X” on device tab can be removed. To disconnect a device from Router,
un lug the USB cable from the com uter or device.
Load Tem late – will automaticaly configuring Router from a tem late (*.tpl file).
When clicked, Router will o en a standard File Load dialog window and the desired tem late can
be chosen. Router loads tem lates from the tem late directory – the default location is:
C:\Program Files\microHAM\template. When Router loads a tem late, it looks for an html file with
the same name as the tem late in the same directory. If such file is found, it is dis layed. If Router
fails to find an html file, it will look for a txt file with the same file name as tem late in same
directory. If such file, is found it is dis layed.
Save Tem late - will save the current Router settings to tem late file.
When clicked, Router will o en a standard File Save dialog window. Router saves all tem lates to
the tem late directory – the default location is: C:\Program Files\microHAM\template. A
documentation file in lain text (txt) or hy ertext (html) format can be created manually and
attached to the tem late. The documentation file must have the same name as the tem late and
must be located in the same directory.
Tem lates are a owerful tool for quickly configuring Router to work with a articular a lication or for
other ur oses. Tem late files are interchangeable between different com uters and transceivers and are
well suited to clone setu s when using the same a lication in multi-com uter stations or for sharing
custom setu s between users.
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microHAM © 2006 All rights reserved
VIRTUAL PORT MENU
It is necessary to create several virtual serial orts (COM orts) in order for a Windows a lication
(logging, control or digital mode rogram) to access microHAM devices. By using tem lates, the
neccessary virtual orts are created automatically. However, virtual orts can also be created manually.
Create - Creates virtual COM orts. It is ossible to select more
orts at once by holding Ctrl key on keyboard and clicking on COM
ort numbers. Creating of virtual ort may take a long time (several
tens of seconds) on Windows 98/ME, be atient.
Delete - Deletes any single virtual ort.
Delete All - Deletes all reviously created virtual orts.
Do not delete a virtual ort unless all a lications using that ort
have been closed.
TIP: In order to avoid conflicts, do not use the
number of COM orts that are already defined
in Windows (hardware COM ort or virtual COM
ort from another USB -> serial ada ter).
Successfully created Virtual Serial Ports can be
reviewed in Device Manager, under the ELTIMA
folder. Note: in Win98SE the orts are in the
PORTS folder with two entries, the Virtual Serial
Port and a "Null" co y.)
Pro erly working orts should not dis lay an
exclamation mark (!).
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microHAM © 2006 All rights reserved
HELP MENU
microHAM Home Page - Link to www.microHAM.com
microHAM Downloads age - Link for downloading the current software and firmware u dates
Show Toolti s - When checked, small, single line hel is dis layed below the mouse cursor
About - Shows the version number
DEVICE CONFIGURATION TABS
There are three (3) tabs for configuring DIGI KEYER. Each tab controls a art of DIGI KEYER's functions.
Any change to the first two (2) tabs are a lied immediately to DIGI KEYER. Changes in Messages are
NOT a lied automatically. To store them use buttons Store or Store All.
Ports - used to assign virtual orts to the DIGI KEYER
for use by a lications.
Keying - used to configure timing of the PTT signal,
o ertion of the FSK keyboard and the audio
orcessor.
Messages – used to configure stored FSK messages.
Ports Tab
Once the virtual orts have been created they must be associated with a s ecific device channel (e.g.,
Control, CW, PTT, etc.). These assignments should corres ond to settings of the a lication software and
must be configured first in Router then in the a lication (e.g., logging rogram, MMTTY, STREAM, etc.).
Pro er configuration of the COM orts assigments in this tab is most im ortant for intergration with
loggers. Read the following information carefully.
DIGI KEYER has seven functions with indication of the state and settings a lied by the host a lication
–Radio Control (uses RxD and TxD)
–FSK (uses TxD and o tionally RTS/DTR for PTT)
–2nd FSK (uses TxD and o tionally RTS/DTR for PTT)
–CW (uses DTR or RTS)
–PTT (uses DTR or RTS)
–2nd PTT (uses DTR or RTS)
–Squelch (uses CTS, DCD, DSR or RING)
General note: Do not assign virtual orts to the channels which are not used by the a lication. It is
unnecessary and only consumes resources.
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microHAM © 2006 All rights reserved
CONTROL PORT
The control channel is used by the host a lication to control transceiver frequency, mode, T/R switching
and many other arameters. The a lication communicates with the radio using a serial rotocol. Most
modern radios im lement some form of serial control but almost every radio im lementation is different.
The amount of radio control de ends on the articular a lication and radio.
TIP: The COM ort number assigned in Router MUST match the ort number assigned in the host
a lication. First configure the virtual COM orts in Router then configure the a lication.
When a COM ort is assigned in the Router
but not in the a lication (or no a lication is
running) Router will show the channel as
closed.
When an a lication o ens the COM ort assigned for control (usually at start-u ), Router shows the
channel as o en and dis lays baud rate, data bits, arity and number of sto bits used by the a licaiton.
For exam le, 4800 8N2 means: 4800 baud, 8 bits data length, arity = none, and two sto bits.
TIP: If the a lication ermits, always configure the Radio Control ort to use two sto bits.
Communication is a little bit slower (9%) but more reliable. Some radios require two sto bits.
Data flowing thru the Control channel are indicated by two arrows. A green arrow indicates data flow from
the host a lication to the radio and a red arrow indicates data flow from the radio to the a lication.
The virtual COM ort assigned for Control can be shared with CW and/or PTT but sharing must be
s ecifically su orted by the a lication. Many a lications do not know how to share the radio
ort with other functions, use the control lines (RTS, CTS, DTR, DTS) for handshaking, or a ly a
fixed level.
FSK PORT
The FSK channel is used by the a lication rogram to send FSK keying signal. FSK is used rimarily for
RTTY. It is very im ortant to understand the difference between FSK and AFSK.
FSK is a digital (On/Off) signal from the com uter serial ort (or external modem). This signal is used in
the transceiver to generate a frequency shift. FSK must be su orted by the transceiver (this mode is
commonly labeled RTTY or FSK).
AFSK is a analog signal generated by the com uter sound card (or external modem) used in the
transceiver modulation circuits for o erating digital modes as RTTY, PSK31, AMTOR etc. Com uter
sound card generated AFSK or PSK does not require s ecial transceiver su ort and can be used in the
LSB, USB or FM mode of the transceiver. Some radios have dedicated modes for AFSK (generally labeled
PKT or DATA) with s ecial features.
It is very important to properly adjust the audio drive level of an AF K system so as to not overdrive
the first transmit audio amplifier stage in the transceiver and produce a wide, distorted signal, full of
intermodulation products. It is important to appreciate that distortion generated at this point due to
overdrive CANNOT be reduced or eliminated by the reduction of the microphone gain control – it is
the signal level that must be adjusted to be about the same as would be expected from a microphone.
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microHAM © 2006 All rights reserved
The microphone gain control then becomes a form of transmit power control.
An initial indication of proper audio drive level can be seen on the ALC meter of the radio. Provided
that there is NO audio processing in circuit and that the microphone gain control is in its normal
operating position, then, if the ALC does not show or just starts to indicate during transmission, the
signal is likely to be clean. It is also important is to turn off the microphone compressor, ANY transmit
audio equalizer, AND transmit D P when AF K is used. DO NOT use any form of digital modulation
(sometimes called "Transmit D P") with AF K or P K. ome transceivers bypass these circuits
automatically when signal is routed to the rear audio jack instead of the microphone jack, but some do
not (for example, the T -850).
Edited by Geoff Anderson, G3NPA
Whenever ossible, if your transceiver su orts FSK, use FSK for RTTY. It's a only sure way to get
a clean RTTY signal no matter the gain setting and com ressor ( rocessor) setting on your radio.
When a COM ort is assigned to the FSK channel
in Router but not in the a lication rogram (or no
a lication is running), Router shows the channel
as closed.
When an a lication o ens the COM ort (usually at start-u ), Router shows channel as o en and
dis lays the baud rate, data bits, arity and number of sto bits in use. For exam le, 45 5N1.5 means: 45
Baud, 5 data bits, arity = none, 1.5 sto bits.
The virtual ort used for FSK can o tionally su ort PTT (required in basic MMTTY settings). Do not
share the FSK ort with any other function.
TIP: If you see a baud rate other than 45 baud, the a lication is not configured correctly for normal
RTTY o eration.
FSK data flowing thru the channel are indicated by
green arrow.
To test o eration of FSK from the com uter to the radio click on Test button with no ort assigned or the
ort closed. More details about function checks are described in cha ter 12.2
2 nd FSK PORT
The second FSK channel is identical to the rimary FSK channel.
The second FSK ort is only usefull for radios with two receivers such as the FT-1000D, FT-1000MP,
Mark V, Orion or IC-7800. Audio out ut from the second receiver is automatically connected to the right
channel of the USB sound rocessor. The second instance of the RTTY rogram (for exam le MMTTY)
should s ecify "right channel" for its audio source and should be configured to use the 2nd FSK ort for its
FSK out ut.
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microHAM © 2006 All rights reserved
CW Port
By their very nature, USB orts are not well suited to transfer the real time events required for CW keying
on virtual serial ort control signals (DTR). In addition to the latency in USB, there are also latencies
caused by com uter CPU load, internal Windows message rocessing (inter- rocess communication) and
data flow from another eri herals using the USB orts. This can result in transmitted characters being
garbled. To minimize these unwanted o erating system effects Router uses a s ecially develo ed
oversam ling and rediction algorythm to assure the smoothest ossible transfer of control signal events
over USB. Thanks to this rinci le, CW keying in the Router is in most cases usable u to 50 WPM if the
a lication generates keying signals accurately and does not consume 100% of CPU time at the highest
riority class.
Router allows assigning a virtual serial ort for the CW channel DTR or RTS out ut control line.
TIP: More a lications use DTR for CW than RTS.
When a COM ort is assigned in the Router but not in the a lication (or the a lication is not running),
Router shows the channel as closed.
When an a lication o ens the COM ort (usually at start-u ), Router shows the channel as o en.
Activity and state of the CW channel is indicated by red
arrow. If ort is o ened, it does not mean that it is
ro erly configured for CW keying. The Red arrow will
light in time with the transmitted CW characters when ort is ro erly configured in the a lication.
To test o eration of CW from the com uter to the radio click on Test button with no ort assigned or the
ort closed. More details about function checks are described in cha ter 12.2
PTT Port
The PTT channel is used for T/R switching of the transceiver, Power Am lifier and Low Noise Pream lifier
(LNA). An internal T/R sequencer assures 100% rotection against transmitting through the LNA or hot
switching of the PA when the PTT channel is used for T/R switching. More information about T/R
switching, DIGI KEYER PTT out uts and the sequencer is rovided in cha ter 15.3
Router allows assigning a virtual serial ort to the PTT channel and su orts PTT via DTR or RTS.
TIP: More a lications use RTS for PTT than DTR.
When a COM ort is assigned in the Router but not in
the a lication (or the a lication is not running),
Router shows the channel as closed.
When an a lication o ens the COM ort (usually at start-u ), Router shows the channel as o en.
Activity and the state of PTT channel is indicated by arrow. If ort is o ened, it does not mean that is
ro erly configured for PTT keying. The arrow will light during the entire transmission when ort is
ro erly configured. O eration of the PTT out uts is described in cha ter 15.3
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TIP: Always use serial PTT instead of the radio command PTT or VOX. It is the only sure way to
assure ro er sequencing of an LNA and Power Am lifier.
To test basic o eration of the PTT from the com uter to the radio, click on the Test button with no ort
addigned orthe ort closed. More details about function check are described in cha ter 12.2
2 nd PTT Port
The second PTT channel is identical to the rimary PTT channel.
Squelch Port
Even though most current a lications do not su ort readback of squelch and do not have the ability to
erform s ecific functions based on its status, we have decided to include this feature in Router. Perha s
someday a lications will be able to detect the squelch and use this information for configurable
automated functions like audio recording.
Router allows assigning a virtual serial ort to squelch as CTS, DSR, DCD or RING..
When a COM ort is assigned to the squelch channel in Router but not in the a lication (or no a lication
is running), Router shows the channel as closed.
When an a lication o ens the COM ort (usually at start-u ), Router shows channel as o en.
When squelch is active, this state is indicated by a red arrow.
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