[Elecraft] 14.316 help!

[Jack Brindle]

It could also be another device that uses a crystal frequency of 14.31818 MHz. That is also a very popular Microcontroller frequency.
You might also want to look at the computer video card since it probably generates this frequency. Maintaining a very stable frequency is much easier when you divide down from a stable source. If you have an RGB monitor, especially one that is CRT-based, then this is a likely culprit.

Jack Brindle, W6FB

On Apr 24, 2011, at 5:02 PM, Phil Kane wrote:

> On 4/24/2011 1:39 PM, Grant Youngman wrote:
> 
>>> I don't have the problem on the 2nd or 3rd harmonic of 3579 KHz,
>>> but do on have a tone between about 14.316 and 14.318 MHz.
> 
>> It's the 4th harmonic
> 
>  Digital TV receivers do not use a 3.57954528+ MHz subcarrier
>  like NTSC (analog) receivers do. In digital TV protocols color
>  information is carried in the digital data stream.
> 
> --  73 de K2ASP - Phil Kane
>    Elecraft K2/100   s/n 5402
> 
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