[time-nuts] Help needed with frequency standard

[Mark Spencer]

I would be curious to hear from those who have a GPS disciplined PRS 10 in their home time labs.   I was never that impressed with the performance of one of mine in that configuration from a 10 MHz ADEV perspective (I did try making a few parameter changes.) I ended up essentially free running mine but would occasionally apply a 1pps signal to mine as means of adjusting its output frequency on an as needed basis.   

I may try this again with a different PRS10 (the 1pps output on the unit in question failed a few years ago but I have a spare that has been recently put into service.)   Perhaps the second unit will work better.   Both units were obtained via the usual auction site.

Mark Spencer
mark at alignedsolutions.com
604 762 4099

> On Sep 29, 2020, at 8:02 AM, Luiz Alberto Saba <las at intercat.com.br> wrote:
> 
> Hi guys
> 
> 
> I want a stable & reliable frequency standard.
> 
> I do NOT have a cesium beam.
> 
> I DO have a lot of gpsdos and some rubidiums.
> 
> Since I have one PRS-10 and this device has a 1 pps input, you already know what I'm thinking...
> 
> What I have:
> 
> Trimble Thunderbolt
> 
> Trimble UCCM
> 
> Symmetricom UCCM
> 
> Samsung UCCM
> 
> HP 58503A
> 
> TruePosition
> 
> Oscilloquartz Star 4+
> 
> and a little board with a ublox LEA 5T and 1 pps output.
> 
> Which device is more suitable for disciplining the PRS-10?
> 
> My gps antenna setup is:
> 
> Symmetricom 58532A on the top of the water tank of my building with a very good sky view.
> 
> A Raven Industries LA-21-1575-100-T. About 50 m of RG6.
> 
> A Symmetricom antenna distributor (don't remember the code but is the 4 outputs one)
> 
> By the way... Someone knows the delay of the inline amplifier and the antenna distributor? (for Lady Heather)
> 
> Mark Sims is out there reading this list? I'm having problems with LH 6.14 and the UCCM units.
> 
> Any help you can give me will be welcomed.
> 
> 
> Thanks
> 
> 
> Luiz Alberto Saba
> 
> from Santos - São Paulo - Brazil
> 
> 
> 
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