--- On Fri, 8/2/13, Bill Booth ve3nxk@gmail.com wrote:
Its been a while and I need to be refreshed. When using the sats linear transponders how does the transmit receive work.
Does the transmit stay on frequency and tune the receiver for best receive, or does the receiver stay and transmit frequency changes for best receive. Or do both move if your rig supports a satellite mode.
There was a article on that some years ago but I'm lost the URL, anyone know it ?
The conclusion was keep the receiver frequency steady and tune the transmitter.
Also I am hearing what I believe is both USB and LSB on the birds. Is one sideband considered to be standard.
USB is the standard for the Downlink.
The sideband used for the uplink depends on whether it's an Inverting transponder or not. AO-7 Mode A would be USB uplink but AO-7 Mode B would be LSB uplink.
73 Trevor M5AKA