Re: [OT] RBW of CW Skimmer?

[alorona]

Thanks for the answer, Fred.

Very surprising. I was only asking because the *main purpose* of the RBN seems
to be the reporting of the SNR of your signal at a distant point... but if you
are saying that there's no real way to compare and assess these numbers, then
that renders the RBN far less useful than I thought! I'll take your advice and
take the numbers with a large grain of salt.

Al  W6LX


>I doubt seriously that the S+N/N reports are accurate and comparable in the
>engineering sense.
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[Tim Herrick]

To be of the engineering sense then everyone would have to have exactly the same gear and exact same noise level. Only the location
could be different for signal comparisons. These are unobtainable. What the RBN does give you is an idea on how you sound in
whatever part of the world is hearing and with what equipment they use. K1TTT is going to hear much better than KQ8M because of his
antenna advantage BUT KQ8M does occasionally hear stations better that K1TTT due to propagation.

If you're a strict number cruncher then stay away but if you want to know if you are being heard elsewhere and an idea of how well
then use the RBN.

73,
Tim Herrick, KQ8M
Charter Member North Coast Contesters
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-----Original Message-----
From: [hidden email] [mailto:[hidden email]] On Behalf Of Al Lorona
Sent: Monday, January 14, 2013 1:54 PM
To: [hidden email]
Subject: Re: [Elecraft] [OT] RBW of CW Skimmer?

Thanks for the answer, Fred.

Very surprising. I was only asking because the *main purpose* of the RBN seems
to be the reporting of the SNR of your signal at a distant point... but if you
are saying that there's no real way to compare and assess these numbers, then
that renders the RBN far less useful than I thought! I'll take your advice and
take the numbers with a large grain of salt.

Al  W6LX


>I doubt seriously that the S+N/N reports are accurate and comparable in the
>engineering sense.
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[Jim AB3CV]

What RBN is good for IMO is seeing whether you are heard at all and if you
have the ability to rapidly switch antennas compare the received signal
reports subject to QSB, etc of course. An average of several A/B test
reports might give you a good estimate.

73

jim ab3cv
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