WSJT-X/doc/user_guide/en/settings-radio.adoc

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// Status=review
image::RadioTab.png[align="center",alt="Radio Tab"]
_WSJT-X_ offers CAT (Computer Aided Transceiver) control of relevant
features of most modern transceivers. To configure the program for
your radio, select the *Radio* tab.
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* Select your radio type from the drop-down list labeled *Rig*, or
*None* if you do not wish to use CAT control.
** Alternatively, if you have configured your station for control by
*DX Lab Suite Commander*, *Flrig*, *Ham Radio Deluxe*, *Hamlib NET
rigctl*, or *Omni-Rig*, you may select one of those program names
from the *Rig* list. In these cases the entry field immediately
under _CAT Control_ will be relabeled as *Network Server*. Leave
this field blank to access the default instance of your control
program, running on the same computer. If the control program runs
on a different computer and/or port, specify it here. Hover the
mouse pointer over the entry field to see the required formatting
details.
** Select *Omni-Rig Rig 1* or *Omni-Rig Rig 2* to connect to an
_Omni-Rig_ server installed on the same computer. _Omni-Rig_ will
be started automatically by _WSJT-X_.
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NOTE: _Omni-Rig_ is available only under Windows.
* Set *Poll Interval* to the desired interval for _WSJT-X_ to query
your radio. For most radios a small number (say, 1 3 s) is
suitable.
* _CAT Control_: To have _WSJT-X_ control the radio directly rather
than though another program, make the following settings:
** Select the *Serial Port* or *Network Server* including the service
port number used to communicate with your radio.
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NOTE: A special value of *USB* is available for custom USB devices
like those used by some SDR kits. This is not the same a virtual
serial port provided by USB connected transceivers and CAT
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interfaces, for those use the COM or serial port name that
refers to them.
** _Serial Port Parameters_: Set values for *Baud Rate*, *Data Bits*,
*Stop Bits*, and *Handshake* method. Consult your radio's user
*guide for the proper parameter values.
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NOTE: CAT interfaces that require handshaking will be non-responsive
until the correct *Handshake* setting is applied.
** _Force Control Lines_: A few station setups require the CAT serial
ports *RTS* and/or *DTR* control lines to be forced high or
low. Check these boxes *only* if you are sure they are needed (for
example, to power the radio serial interface).
* _PTT Method_: select *VOX*, *CAT*, *DTR*, or *RTS* as the desired
method for T/R switching. If your choice is *DTR* or *RTS*, select
the desired serial port (which may be the same one as used for CAT
control).
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NOTE: When using a proxy application for rig control, *CAT* is usually
the correct option for _PTT Method_ assuming the proxy
application is capable of keying your transceiver independently.
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* _Transmit Audio Source_: some radios permit you to choose the
connector that will accept Tx audio. If this choice is enabled,
select *Rear/Data* or *Front/Mic*.
* _Mode_: _WSJT-X_ uses upper sideband mode for both transmitting and
receiving. Select *USB*, or choose *Data/Pkt* if your radio offers
such an option and uses it to enable the rear-panel audio line
input. Some radios also offer wider and/or flatter passbands when
set to *Data/Pkt* mode. Select *None* if you do not want _WSJT-X_
to change the radio's Mode setting.
* _Split Operation_: Significant advantages result from using *Split*
mode (separate VFOs for Rx and Tx) if your radio supports it. If it
does not, _WSJT-X_ can emulate such behavior. Either method will
result in a cleaner transmitted signal, by keeping the Tx audio
always in the range 1500 to 2000 Hz so that audio harmonics cannot
pass through the Tx sideband filter. Select *Rig* to use the
radio's Split mode, or *Fake It* to have _WSJT-X_ adjust the VFO
frequency as needed, when T/R switching occurs. Choose *None* if
you do not wish to use split operation.
When all required settings have been made, click *Test CAT* to test
communication between _WSJT-X_ and your radio. The button should turn
green to indicate that proper communication has been established.
Failure of the CAT-control test turns the button red and displays an
error message. After a successful CAT test, toggle the *Test PTT*
button to confirm that your selected method of T/R control is working
properly. (If you selected *VOX* for _PTT Method_, you can test T/R
switching later by using the *Tune* button on the main window.)