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AO-51 QRM



Bob's rationale makes lots of sense, and not just for mobiles.  It's a lot
easier to develop power on earth than on the sats.  These days, it's pretty
easy to produce a powerful stable signal on 70 cm. in any mode at home.

One question:  isn't doppler for an inverting transponder proportional to
the difference between the uplink and downlink freqs?  If so, isn't doppler
for mode B the same as for mode J (provided both used an inverting
transponder)?

73,
Tony, N2UN
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