This allows a number of multiplexes to be transmitted from each satellite and a wider range of services to be broadcast. The term transponder is often interchanged with multiplex. This is ...

for the last year or two amateurs have had their own geostationary satellite transponder. Called Es’hail-2 / AMSAT Phase 4-A / Qatar-OSCAR 100, it lies in the geostationary orbit at 25.9° East ...

Though a diverse range of payloads have been carried by these satellites over the years, the majority of amateur radio satellites have featured transponders working in the VHF and UHF spectrum.

2). In this approach, the content is divided and transmitted via single 21-GHz-band satellite transponder, two 12-GHz-band satellite transponders, and internet (IP) network; signals transmitted ...