Re: GPS Time Reference

Peter Torry

For a low cost option have a look at the kits from

They have many interesting units for GNSS, clocks and synthetic crystals etc.


Peter  UK

On 03/06/2021 08:34, Darren Conway wrote:

Hi Neil

Do you have a Trademe auction number?

I am currently looking down the DIY lab frequency standard rabbit hole and it is looking a lot deeper than $40.

It looks like many of the Aliexpress U-Blox Neo gps modules are probably fake and gps based time has high phase noise.

The cheap fake gps modules would be just fine for running slaves or comparing against a master.


Darren Conway
36 Orr Crescent
Lower Hutt
New Zealand
ph +64  (0)4 569 1963

On 3.06.21 4:19 pm, neil wrote:
Hi Darren,
                     there is a chap in the SI who makes and sells such a unit on Trademe for $40. It has a GPS receiver and a nice little LCD display showing the GPS lat & Long and the time in HHMMSS all for $40.

Neil Jepsen. B.Sc. M.Sc(Hons).CPL.MASNZ.
Jepsen Acoustics & Electronics Ltd
22 Domain Street
Palmerston North.
New Zealand.
Ph +64 6 3577539  Mob 0274428094
Web site:

E.& O.E.
On 2/06/2021 10:51 pm, Darren Conway wrote:


I have been looking at using a GPS receiver to use as reference time for a RF signal generator upgrade.

I have also been working on developing a arduino based controller  that will drive both a Solari Udine Cifra 12 and Synchronome slave clocks from a Synchronome master.

It would not be difficult to add a GPS receiver to the Arduino controller that would either replace the Master or accurately measure the Master error.

My plan was to make just one controller for me but I thought perhaps others might want one.  Is that something anyone else would like to own?


Darren Conway
New Zealand

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