[time-nuts] housing multiple GPS timing receivers in the same box.

[David McGaw]

As has been discussed before, a splitter intended for home satellite 
systems is a cheap solution as they have the bandwidth and the DC pass 
required.  I have one between a couple of Thunderbolts.  It powers the 
antenna and shows antenna OK on both.  Using a splitter is better than 
just a T as it does lend some isolation between the receivers.

David


On 2/4/14 4:50 PM, mike cook wrote:
>
>
> Le 4 févr. 2014 à 22:35, Volker Esper a écrit :
>
>> http://www.ebay.de/itm/HP-58516A-GPS-1-4-signal-Distribution-Amplifier-Splitter-N-type-/300997787447?pt=US_Ham_Radio_Receivers&hash=item4614ddbf37
>>
>    I think I should have said that my box is only 25mm high. So any splitter will have to be less. A Mini Circuits splitter will just about do it , but I would prefer a smaller solution.
>
>
>>
>> Am 04.02.2014 14:08, schrieb mike cook:
>>> Hi,
>>>   Till now I have been putting receivers in individual boxes. So to limit the growing number of boxes, I want to put two Resolution-T SMT receivers in one box, sharing power and antenna inputs. My question is " How best can I share the antenna input, minimizing any interference between the receivers?" . Will any interference matter? For example, I can easily connect three bits of shielded coax in a "Y" , but will probably get reflections from each receiver. As the cables will only be about 15cm long, would it matter? How about the DC antenna supply? The antenna DC will NOT be powering an antenna as it passes through a DC blocked splitter used to share an antenna between most of my receivers. I might be able squeeze a Mini-Circuits splitter in the box and DC-block both outputs but that may be overkill.  What discrete circuitry might be a replacement? Will the "Y" do it?
>>>
>>> Someone must have already succeeded with this type of config.
>>>
>>> Thanks in advance  for your input.
>>>
>>> Regards,
>>> Mike
>>>
>>>
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