[time-nuts] RFTG-m-XO disassembly photos
John Ackermann N8UR
jra at febo.com
Wed Dec 27 17:23:33 EST 2006
Dr Bruce Griffiths said the following on 12/27/2006 04:35 PM:
> John Ackermann N8UR wrote:
>> The 15MHz out surprised me to. I haven't traced out the circuits but
>> from a couple of the components, I am guessing that they do something
>> like take the 3rd harmonic of the 10MHz OCXO and dividing that by 2.
>>
> John
>
> That is not likely to be the scheme used, as there appears to be no
> 30MHz bandpass filter.
> The alternative technique of dividing the 10MHz by 2 and then extracting
> the 3rd harmonic of the resultant 5MHz square wave is more likely.
You're right, and it's a simpler method anyway. Let Occam rule.
John
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