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

2014-02-06 Thread Alex Pummer
Hi where is a good source of GPS receiver modules I need one which has 10kHz output to phase lock a quartz oscillator Thank you in advance Alex On 2/4/2014 9:32 AM, Brian Lloyd wrote: Get a signal splitter from minicircuits specifically designed with a passband tailored for GPS that has DC

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

2014-02-05 Thread mike cook
Le 5 févr. 2014 à 01:52, saidj...@aol.com a écrit : Michael, use a simple BNC T-splitter. Works perfectly for me as long as both GPS carry the same antenna voltage. No loss in signal quality evident from the C/No readings, and dirt-cheap. No need to over-complicate this. bye, Said

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

2014-02-05 Thread 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

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

2014-02-04 Thread 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

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

2014-02-04 Thread Brian Lloyd
Get a signal splitter from minicircuits specifically designed with a passband tailored for GPS that has DC pass-through to power the antenna and LNA. If you can't find one that has DC pass-through then you will need to add a power injector to power the antenna/LNA. Here:

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

2014-02-04 Thread Volker Esper
http://www.ebay.de/itm/HP-58516A-GPS-1-4-signal-Distribution-Amplifier-Splitter-N-type-/300997787447?pt=US_Ham_Radio_Receivershash=item4614ddbf37 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

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

2014-02-04 Thread mike cook
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_Receivershash=item4614ddbf37 I think I should have said that my box is only 25mm high. So any splitter will have to be

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

2014-02-04 Thread Alex Pummer
Hi Mike, that distribution amplifier is not optimized as low noise amplifier, therefore it's noise-figure most likely no to low, that will effect the GPS system, which get his antenna feed via that amplifier. That is valid even if you solve the problem of the preamplifier power feed.

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

2014-02-04 Thread SAIDJACK
Michael, use a simple BNC T-splitter. Works perfectly for me as long as both GPS carry the same antenna voltage. No loss in signal quality evident from the C/No readings, and dirt-cheap. No need to over-complicate this. bye, Said In a message dated 2/4/2014 14:41:40 Pacific Standard