To facilitate experimentation and special applications of the G313 series receivers, special command-line optional parameters (switches) have been incorporated in the G313 series receiver application software.

 /#SERNUM (open a receiver of a specified serial number)

This switch makes it possible to open a receiver with a particular serial number SERNUM if more than one receiver is present.

 /index=N (open a particular receiver in the device list)

This command-line switch makes it possible to open the N-th receiver in the device list. If N is zero, the application opens the first available receiver.

 /nd ("no demodulator" command-line switch)

This switch suppresses error generation if no demodulator is found by the G313 application (normally, demodulators are located in the application "Plugins" folder). The application starts up with the demodulator window empty. This is intended for situations where external third-party demodulator software is used.

 /sd ("stop demodulator" command-line switch)

This switch causes the application to ignore any existing demodulators upon start-up, to prevent them from claiming the DSP facilities of the receiver. This serves to a similar purpose as the above /nd switch, but allows to keep original WiNRADiO demodulators in place. (The demodulators can still be selected and started later, using the top bar Demodulators menu.)

 /dem=DEMODULATOR_NAME (run the specified demodulator)

The specified demodulator is run upon start up. (The "DEMODULATOR_NAME" is the name displayed under the Demodulators menu, not the demodulator plug-in file name.)

 /c ("clock frequency" command-line switch)

This switch makes it possible to disable the internal reference oscillator, and define the frequency of an external reference oscillator. The external reference can be of any frequency between 8 and 20 MHz. For example, if the external frequency is 16.7890124 MHz, this would require the following command-line switch: /c16.7890124. This option is only available on G313i/XR receivers, where a provision for an external reference source is fitted, if required for very high tuning accuracy.

 /ptk ("passband tuning via keyboard" command-line switch)

This switch alters the functionality of the keyboard Up/Down arrow keys, if used in conjunction with the Ctrl key. Normally, such key combination increments or decrements the tuned frequency by 1 kHz. With this switch active, IF shift by 10 Hz is performed instead.

You can either type the name of the application in the Windows Run Program edit box, followed by the desired command-line switch, or you can introduce a command-line switch by right-clicking on a desktop icon, selecting Properties, and adding the command-line switch to the Target, for example as follows:

"C:\Program Files\WiNRADiO\G313\WRG3130.exe" /sd

You can also copy the desktop icon, for example creating one with the command-line switch, and one without, and renaming the icons to reflect the associated functional differences.

Note that the entire file path name of the Target is enclosed in double quotes, but not the command-line switch (otherwise it would be considered to be part of the executable file name).