[Elecraft] Crystal Filter Offset in 4.81, What does it mean?

Doug Alspaugh dalspaugh at comcast.net
Wed Feb 5 19:17:15 EST 2014


It does effect what CW skimmer sees. At least it does here. I have to set .1 to get skimmer to decode.

73 Doug N3QW

"Wes (N7WS)" <wes at triconet.org> wrote:

>Already noted.  See the footnote here: 
>http://elecraft.365791.n2.nabble.com/Ref-Osc-Cal-Method-4-tc2595451.html
>
>On 2/5/2014 8:35 AM, Lyle Johnson wrote:
>>
>> "Zero beat" has to do with frequencies, not filter responses, and
>changing the 
>> filter edge should have no practical effect on whether or not you are
>zero 
>> beat.  I say practical because the calculations done inside the radio
>coupled 
>> with finite resolution of the various oscillators may result in a 1
>or 2 Hz 
>> difference, and _someone is bound to measure this :-) _
>>
>>
>> 73,
>>
>> Lyle KK7P
>
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