[time-nuts] GPS and Rubidium frequency standards and noise question (newbie).

Mark Spencer mspencer12345 at yahoo.ca
Wed Jun 6 01:22:58 UTC 2012


Ditto.

I daisy chained devices together before I got a 10 Mhz distribution amp.  So long as I didn't make any changes to the cabling while making critical measurements it seemed to work okay.

Regards
Mark Spencer  



------------------------------
On Tue, 5 Jun, 2012 8:28 PM EDT Bob Camp wrote:

>Hi
>
>You should be able to daisy chain a number of devices off of a TBolt. More or less, you run a BNC cable with a bunch of Tee's on it to distribute the signal. The end of the cable should get a 50 ohm load. There are better / fancier / more expensive ways to do it using distribution amplifiers.
>
>Bob
>
>On Jun 5, 2012, at 8:20 PM, Chris Wilson wrote:
>
>> 
>> 
>> Hi
>> 
>> For your immediate need, a Thunderbolt sounds like the ideal
>> solution. It will give you a very accurate reference to sort out
>> your test gear and likely "good enough" phase noise for most of the
>> rest of what you want to do. Once you get into the microwave stuff,
>> plan your PLL's properly and all will be well there.
>> 
>> Bob
>> 
>> I have thought of something I am unable to find an answer for via the
>> normal Googling, etcetera. When I get my GPS locked standard will it
>> be able to feed several items of test equipment simultaneously? IE,
>> say a sig gen, a frequency counter, and my possible next purchase, a
>> Signal Hound USB spectrum analyser? I believe a friend once said he
>> uses a GPS reference throughout his shack, but I wasn't sure if he
>> meant to multiple devices at the same time, or individually, manually
>> swapping cables al the time. Thanks.
>> 
>> 
>> 06/06/2012 01:16
>> 
>> 
>> 
>> -- 
>>       Best Regards,
>>                   Chris Wilson.
>> 
>> 
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>
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