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Re: [IRCA] Offsets



I'm sure that mwlist would also like more input from the smaller stations Aaron.

I have done this before, using an audio scheme that I think is something like you describe. 0.1Hz resolution is more than possible, but as you point out, accuracy may not be as good. I've been saying +/- 0.2Hz, but I think it can be better than that.

One other problem is calibrating against stations of known accuracy with low drift. KSL-1160 still seems to be pretty good out west, but IBOC stations don't seem to be as reliable as they once were.

At any rate, I am interested, just not sure how much time I can devote to it at least until next spring.

best wishes,

Nick


At 04:01 26-11-15, you wrote:
Is anyone interested in doing a better job of collecting offsets for North American stations? I know mwlist has some, but they only have the big US stations. I think European DXers are making most of the contributions.

I recently figured out how to get 0.1 hz resolution on my QS1R (using HDSDR, tuning below the carrier, and using the audio spectrum).

I'm looking at 1280 now and I see what I think are 30+ carriers! Very exciting!

While 0.1 hz accuracy might be hard to achieve (even if your own receiver can do it - the transmitter won't necessarily be that stable), we should at least be able to do 1 hz.

Aaron
Philadelphia, PA
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