Re: [IRCA] Offsets

[Patrick Martin <mwdxer@xxxxxxxxx>]

Nick,

KSL is the only AM IBOC station I can get at night in HD, but it takes the Eastern Beverage to do it and not every night. AM IBOC is not easy to receive from a distant. FM IBOC is much easier as I get several from Seattle in FM IBOC.

Patrick Martin
Seaside OR
KGED QSL Manager

> Date: Thu, 26 Nov 2015 05:02:23 +0000
> To: irca@xxxxxxxxxxxxxxxx
> From: nhp@xxxxxxxx
> Subject: 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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