10
Expert Electronics
2018
4.4 PTT footswitch
The PTT footswitch allows you to turn the SunSDR2 QRP transceiver into TX mode.
Cable pinout for PTT footswitch connection
4.5 CW-key
Different CW-keys have different connectors. You may also use JACK 3.5 mm for connection
to PC.
CW-key connector pinout
5. Local operation
Local operation is a standard way to use the SunSDR2 QRP transceiver. Make the following
connections as described below:
1.
Connect headphones and microphone to the transceiver.
2.
Connect an HF-antenna to the ANT connector;
3.
Connect the transceiver and a PC with a CAT5 Ethernet cable;
4.
Start the ExpertSDR2 software with the red Start button.
5.
Open the
Options→ Device
menu and set the checkboxes according to the picture below:
