Specifications

this can not solve a communication problem. Moreover, this function is not supported by some
comm drivers (like Prolific) and this may lock up the program.
Handshaking is only required with Kenwoods, some TenTecs and some serial servers. It is NOT
required with other brands and may lock up the program at startup. Should this happen, you
have to use the TRX-Tools program (distributed with TRX-Manager) to reset all your
configuration to DEMO (TRX1-4= DEMO).
If the monitoring display doesn't reflect the transceiver status, check the dual control option
(Setup). Except for special cases, this option should be enabled (checked).
Step 4 : the Transceiver's settings
Check that the Setup's speed is the same as that definite for your transceiver; if necessary,
try to decrease or increase this speed.
Particular case : ICOM and TenTec
If you are using an ICOM or a TenTec OMNI VI, please check :
TRANSCEIVE function is ON (CdE on TenTec). Setting methods differ according to radios.
Refer to the instruction manual of each radio
The transceiver address of the radio is the same as the one in the Setup of
TRX-Manager
AUTO Baud (or Auto-Speed) is not selected, but select a true speed : 9600 or 19200
CI-V 731 Mode is set as OFF (except for IC-735)
In most cases, Stop Bits = 2 gives more reliable communications ; however, in some other
cases this parameter does not work properly and you must try Stop Bits = 1.
The ICOM and TenTec transceivers function better at 19200 bds.
Sometimes if you use an ICOM (or a TenTec OMNI VII), you may receive this message "
Communication error (Invalid message format)". This is a warning only which appears once
for each session. Generally, this message is without consequence ; however you can try to
improve your parameter settings.
Particular case : FT-847
Unlike most other transceivers, the FT-847 serial data cable is a null modem (crossed) type,
not a straight serial data cable.
The FT-847's microprocessor uses the same com port to exchange data with the FC-20, CAT
programs and a clone transceiver... thus this transceiver doesn't allow you to simultaneously
use the FC-20 antenna tuner and the CAT system! It is not the fault of the programmer...
Particular cases : KENWOOD ELECRAFT
The Kenwood or Elecraft transceivers function better at high speed. Please select the highest
speed available.
HandShaking parameter is selectable: With Kenwoods only, try None (NOT checked) or RTS
(Checked) if you don't have any communication. Make sure your cable supports RTS
Handshaking if RTS is selected. If RTS is selected for Handshaking, you can NOT use it for PTT
Switching or CW Keying!
With Elecraft Handshaking is NOT required and may lock up the program (this option is only
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