// Status=review
- Start _WSJT-X_ and select *Configuration* from its *Setup* menu.  Enter
the following information:

* *Call Sign*: <Your Call Sign>
* *Grid*: <Your Maidenhead locator>
* *PTT method*: choose from RTS, DTR, CAT, VOX, or None.
* *PTT port*: if you will use RTS or DTR, choose a serial port.
* *PSK Reporter*: check to enable sending reception reports to the
{pskreporter} mapping facility.
* *CW ID*: Check to send your callsign in CW after sending 73.
* *CW Interval*: set the time interval for sending your CW identification. 
Default is 0 (never).

_WSJT-X_ does not implement full transceiver control, but it provides a
way to ensure that _WSJT-X_ can read and set the radio’s dial
frequency. If you want this capability:

- Check the box *Enable CAT*
- Select your radio type from a drop-down list
- Select a *CAT port* (not the same port selected for PTT control)
- Set port parameters (*Serial rate*, *Handshake*, *Data bits*, *Stop
bits*) for your radio
- If you use {dxlcommander} or {hrd} to control your transceiver, you
can configure _WSJT-X_ to communicate with the radio through that
program.  Entries for these programs appear at the end of the
drop-down list of supported rigs.

[[X11]]
image::images/r3563-config-screen-80.png[align="center",alt="Configuration Screen"]

For now you should leave *Split Tx* unchecked. If you are using CAT
control, most radios will allow you to set *PTT method* = CAT.  Some
radios support two types of PTT assertion via CAT control: one takes
audio input from the Mic connector, the other from a rear-panel Data
connector.  The simplest CAT configuration sets *Polling interval* = 0
(no polling the radio for dial frequency).  _WSJT-X_ will then be able
to set the radio’s frequency, but the program will be unaware of
subsequent changes made using the radio’s panel controls.

TIP: If you need an additional item in the list of devices for the
CAT port, edit the configuration file wsjtx.ini and add your
requirement as CATdriver=yourdriver (for example, 
CATdriver=/dev/tty.usbserial ) in the group of entries marked
[Common].

With most radios you can set *Polling interval* to a small number (say
1 – 3 s) and the program will follow any frequency changes made at the
radio.  Note that you may not be able simultaneously to control your
radio from _WSJT-X_ and from another program.  Some experimentation may
be required, and you may need to refer to the documentation for your
rig-control software and your radio.  It is best to have the radio and
any interface equipment turned on and connected before starting
_WSJT-X_, and to exit the program before turning your equipment off.

- Click the *Test CAT Control* and *Test PTT* buttons to see that you
have established the desired control of station functions.  
- Select the devices you will use for Audio input and output.
- Click OK to dismiss the *Configuration* window.

