[Elecraft] SW broadcast to calibrate against.

[AD6XY - Mike]

GB3RAL at 50.05MHz should be a good signal in Warfield. I do not know how
accurate it is, it is well beyond my ability to measure it here at home. The
reference it is driven from is locked to GPS with a long time constant and
should be close to one part in 10^10. However, the frequency is DDS derived
and there may be a very small fixed offset error of a mHz or so due to the
limitations of a 48 bit frequency control register. For most purposes it
will do. There is also a companion beacon on 70.05 MHz you could use.

Mike



Ian White GM3SEK wrote:
> 
> David Ferrington, M0XDF wrote:
>>I'd like to get a list of KNOWN frequencies of broadcast stations in 10 
>>- 40m in the UK - it's been pointed out tpo me that using BBC WS at 648 
>>KHz is a not so good, because its a low freq.
>>
> The higher the reference frequency, the more accurately you can set the 
> TCXO. Don't  forget you have 50MHz now, and from your Callbook QTH in 
> IO91, you may be able to receive the GB3RAL beacon on 50.050MHz. (I'm 
> fairly sure it is locked to GPS, but not sure about ERP and operational 
> status... we'll soon find out, because Mr Beacon Keeper is an Elecraft 
> user!)
> 
> 
> -- 
> 
> 73 from Ian GM3SEK
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