[time-nuts] Help needed with frequency standard

[Luiz Alberto Saba]

Em 29/09/2020 14:08, Bob kb8tq escreveu:
> Hi
>
> You have a lot of stuff that runs off of GPS L1. Any “common mode” issues
> (like ionospheric disturbances) will propagate into all of them. What impact that
> has on each one is very much a “that depends” sort of thing. The firmware and
> filtering quickly get into the act …. They all will wander, just not in exactly the
> same way.
>
> The PRS-10 does have an internal “sync” capability. The main purpose for the
> input is to simply calibrate the device from time to time. It is not really intended
> to replace a GPSDO.
>
> Any of the devices you have are fine for putting the PRS-10 on frequency to calibrate
> it. All are equally likely to wander around. The PRS-10 will not help much with this wandering.
I was just wanderng what is the best thing to do, with the stuff that I 
already have, in order to have a poor substitute for a cesium...
>
> You can look at all of this with something like a TAPR TICC. To look at lots of them
> at once, a set of TAPR TICC’s would be nice to have …..
I have just one...
>
> Bob
>
>> On Sep 29, 2020, at 11:02 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
>>
>>
>>
>> _______________________________________________
>> time-nuts mailing list -- time-nuts at lists.febo.com
>> To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
>> and follow the instructions there.
>
> _______________________________________________
> time-nuts mailing list -- time-nuts at lists.febo.com
> To unsubscribe, go to http://lists.febo.com/mailman/listinfo/time-nuts_lists.febo.com
> and follow the instructions there.