Hi,
one of the interesting HAM radio topic in Europe now is the use of the new geostationary satellite Phase-4A (QO-100) for analog and digital modes via a 2.4/10 GHz transponder. For my transverter (input from a UHF transceiver) in TX mode I use a 1968 MHz LO with a phase noise level -98 dBc/Hz @ 10 kHz. It is possible to do LO with the best parameters but every next 10 dB increases the cost and complicates the decision. My question is: How to calculate/evaluate the reasonable phase noise requirements of a transverter's LO which would not lead to degradation of the performance of 2400 MHz radio uplink and 10 GHz downlink on the Earth - Analog Satellite Transponder - Earth path? Thanks. Karen, ra3apw _______________________________________________ time-nuts mailing list -- time-nuts@lists.febo.com To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com and follow the instructions there.