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Author Topic: Frequecy Stability  (Read 1767 times)
KE7BDI
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Posts: 36




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« on: July 03, 2005, 08:54:57 PM »

What frequency stability will I need from a transceiver to successfully run PSK-31? I am wondering if I need to add a TXCO to my FT-920 (I have not tried to run it yet in PSK-31).
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VA7CPC
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Posts: 2829




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« Reply #1 on: July 04, 2005, 02:03:06 PM »

There's AFC functionality in all the PSK31 software -- your transmitted audio frequency will follow the other station's received audio frequency.   The two of you may drift around the band, but you'll drift together.

So slow transceiver drift won't be a problem.  Any synthesized xcvr should be OK.

If you have "chirp" on CW -- sudden frequency change when you start transmitting -- that's a different story.  But I've only heard that on some QRP CW rigs, not on SSB xcvrs.
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