[time-nuts] Ebay FE-5680A Rb

paul swed paulswedb at gmail.com
Wed Dec 14 17:24:33 EST 2011


Could be but as a timenut not real magical to me either.
Regards
Paul

On Wed, Dec 14, 2011 at 5:06 PM, Javier Herrero <jherrero at hvsistemas.es>wrote:

> I'm begin getting curious... having already received that OCXO, and with a
> 2nd unit arriving... I've googled the frequency and there are about a
> zillion cristals and oscillators for that frequency from a ton of different
> manufacturers, and seems that the frequency is patented: US patent 6282184
> (well, I suppose that not exactly the frequency is what it is patented,
> but...):
>
> " The digitizing rate of the A-D converter 41 preferably set for this
> example to 63.8976 MHz is carefully selected, as described in detail below,
> to eliminate the need for additional expensive and complex signal filtering
> and shielding that would otherwise be required in the RX channelizer banks
> 7, 8, 9 for simultaneously processing the digitized signal received by the
> A-D converter 41 at the common digitizing rate based on their respective
> CDMA, TDMA and GSM requirements "
>
> So... this seems to be the magic about this frequency (and the reason that
> these sellers has enough of them for sameless give them away)
>
> Regards,
>
> Javier
>
>
> El 14/12/2011 22:41, Pete Lancashire escribió:
>
>> I'd agree. If you google the frequency there is a lot of surplus out
>> there and unless
>> you building your own cell system I can't think of any use .. yet :-)
>>
>> On Wed, Dec 14, 2011 at 11:53 AM, Chuck Harris<cfharris at erols.com>
>>  wrote:
>>
>>> I would say that he has a gadzillion of the OCXO's, recognizes that the
>>> frequency
>>> is useless, and would rather give them away, generating a little
>>> synthetic
>>> good will,
>>> than scrap them.
>>>
>>> -Chuck Harris
>>>
>>>
>>> Joe Leikhim wrote:
>>>
>>>>
>>>> I have been watching this thread and may have missed something. My
>>>> questions: What is
>>>> the purpose of the outboard OCXO VECTRON 63.8976Mhz? What model number
>>>> does this RB
>>>> most closely resemble?
>>>>
>>>>
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