Specifications

ICOM Transceivers
This section applies to ICOM radios and TenTec radios using the ICOM protocol (Omni VI
and Omni VI).
If your transceiver doesn't appear in the SETUP list, please choose the ICOM option which
should function with all ICOMs using a generic (but limited) set of commands.
Settings
Controlling an ICOM via the CI-V protocol requires a CT-17 interface or compatible such as
the W1GEE's LCU-3. Some older transceivers (CI-IV standard) require the conversion
interface UX-14 between the transceiver and the CT-17 interface.
Using the LCU-3 interface requires checking DTR to power on the interface.
Using the RS-746 interface requires checking RTS to power on the interface.
From the SETUP dialog box of the program, you must specify:

The transceiver's address such as defined by ICOM (or that which you have yourself
defined),

The PC's address (E0 by default),

The number of channels (maximum 99),

The channel numbering (please check C00 if the first channel is #00)

The baud rate.

Stop Bits = 2 (default). Rarely, Stop Bits = 1 is required (recommanded by ICOM).

Dual Control usually checked - unchecked only if you connect your ICOM to your
computer through a serial server (*)
From your ICOM radio you have to check:

The baud rate: some transceivers feature an AUTO BAUD or AUTO SPEED function.
However, it is recommended to NOT use this feature and to set the speed from the
transceiver to the highest available value. However some models may not run properly at
the maximum available speed (19200) : in that case, please select 9600 bauds.

The number of bytes for the frequency: except for the IC-735, exchange of frequencies
is done in 5 bytes : check that your ICOM is not setup for a frequency in 4 bytes.

The transceive function (or CdE on TenTec): when the transceive function is ON, any
changes in the operating frequency or mode on the radio is automatically transferred to
the computer. Make sure to set the Transceive function as ON. Setting methods differ
according to radios. Refer to the instruction manual of each radio. Warning : After the use
of some other software, this function may be set as OFF !...
Lastly, the use of TRX-Manager with several ICOM inter-connected in a network is not
advised; indeed the collisions between commands slows down the program and some
commands can not be executed.
Sometimes, you may receive this message "Communication error (Invalid message format)".
This is a warning only which appears one time for each session. Generally, this message is
without consequences; however you can try to improve your parameter settings.
(*) See also Disabling Dual Control. If Dual Control is checked TRX-Managers waits for NG and
OK messages before displaying the new status of the transceiver. Dual Control is more
secure but not compatible with the use of a serial server via the Internet.
(**) for the older ICOMS (IC-751, IC-761...) or if you select the ICOM option, TRX-Manager
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