Click “Start”.
The receiver should start operating. Left and right clicks on the numbers in
the LO display will change the receiver frequency. Clicks on the waterfall
allow fine tuning. Click on where the carrier should be on a SSB signal to
bring it to the centre of the display.
Headphone level audio will be present at the RX1 sound card output socket
and one side of the Combined RX1 & RX2 audio output socket.
When RX1 is working open a second session of HDSDR.
Open the first HDSDR session.
Click on “Soundcard [F5]”.
In “RX Input (from Radio)” select the USB Audio CODEC for RX2
In “RX Output (to Speaker)” select the corresponding USB Audio CODEC.
Click “OK”
Click “Start”.
Set the Volume and AGC Threshold to the same levels on both HDSDR
sessions.
Headphone level audio will be present at the RX1 and RX2 sound card output
socket and both sides of the Combined RX1 & RX2 audio output socket.
At this stage it is advisable to arrange the RX2 HDSDR session so that it is
behind the RX1 HDSDR session so that both waterfall displays are visible.
Frequency changes can only be made with the RX1 HDSDR session.
Mode changes will have to be made to both receivers. It is possible to set up
different sidebands on each receiver on both LSB/USB and ECSS.
13 HDSDR S meter calibration
Open HDSDR.
Click “Options [F7]”.
Click on “Misc Options”.
Click on “SMeter calibration”.
