Specifications

Disabling Dual Control (for experts)
TRX-Manager - by default - features a "dual control" of the transceiver: any action on the rig
is detected by the program and the new state of the transceiver is displayed by the interface.
It uses the full communication protocol and checks that any action from the program has been
accepted by the rig before displaying it on the interface.
In some cases, this dual control is not desirable: especially when your transceiver is remotely
controlled, not using the remote control feature of TRX-manager (which requires two versions
of the program running on two computers) but through a serial device server or any system
which emulates a remote com port (virtual port). In such cases, not only is the dual control
not essential, but it requires a very fast connection and increases the flow of data.
Disabling the dual control reduces the data flow to the strictly necessary bytes to control
your transceiver.
To disable the dual control, you have to uncheck the Dual control option (Setup/TRX.) or to
check the LPBridge, Serial server option (K2, K3). This option is not available for all rigs : if
this option does not appear (TS-480/2000/590), or is grayed out, TRX-Manager does not
support it for the selected rig. As implied in the introduction, this option can degrade the
reliability of the CAT control, and it is not the normal mode of operation for TRX-Manager!
Using TRX-Manager with dual control disabled
The behaviour of the program may be very different from one transceiver to another and
depends on the way you connect the remote transceiver to the local computer. The common
characteristic is that, with dual control disabled, polling are disabled ; this does not mean that
it is not possible to retrieve the state of the distant transceiver :

On Icom, Kenwood, recent Yaesu, the rigs are interrupt driven: if your connection is
bi-directional, a number of key functions will be updated at the conclusion of any tuning
commands, including frequency. There is almost no difference with the "dual control" mode
except that any protocol is ignored. The recent rigs send automatically any change of
their status (no polling required),

On Old Yaesus, the full display is updated at startup and, if necessary, by pressing the
Update button (see below); however the update function still requires a very fast
bi-directional connection. If you can not update the display properly it is advised to set up
TRX-Manager for the generic Yaesu transceiver under Setup/TRX... this option stays
compatible with FT-990/1000/D/MP and does not require a bi-directional connection.
Functions
It may be necessary, from time to time, to poll the transceiver for it's complete status by
pressing the Update button of the Monitoring panel.
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