3 Feb
2018
3 Feb
'18
10:45 a.m.
I understand why FM satellites need an PL tone on uplink (to keep out land-mobile services, like taxi-cabs, etc), but why is a PL not required for the linear sats utilizing the same frequencies? A linear transponder is certainly capable of receiving/transmitting an FM signal (albeit not successfully demodulating that signal).
This question came up at a satellite presentation I did, and I had never thought about it. ( Moreover, will radios even transmit a PL on SSB/CW transmissions?)
Philip N4HF
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Age (days ago)
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7 comments
7 participants
participants (7)
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Jerry Buxton
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Mike Diehl
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Philip Jenkins
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R.T.Liddy
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Robert Bruninga
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Ron VE8RT
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Stefan Wagener