[Elecraft] SW broadcast to calibrate against.

[Don Wilhelm]

Trevor,

I would tend to believe that the carrier frequency of a broadcast 
station would be better accuracy than that 'fairly accurate' 10 MHz 
secondary frequency standard.

That being said - use a secondary standard if that is your only choice 
and if you trust it.  Your K3 calibration will be as accurate as the 
standard that you used to calibrate the reference with.
Keep in mind that the K3 reference is easily calibrated (just a turn of 
the knob after entering the menu), so use whatever accurate source you 
have available now and refine it as better standards become available to 
you.

73,
Don W3FPR

Trevor Smithers wrote:
> Rather than a BC station, how about a fairly accurate 10Mhz frequency standard like
>
> http://www.aade.com/freqstd/freqstd.html
>
> 73 to all
> Trevor  G0KTN 
>
>