[time-nuts] Re: GPSDO / 5MHz with PPS superimposed

[Bob kb8tq]

Hi

Unless you can find the TRAC units used / cheap (good luck with that …), some sort of MCU, FPGA, or random logic attached to a more normal GPSDO is your only option. An output waveform this weird simply isn’t something you would find on a product from somebody else. 

Bob

> On Dec 27, 2023, at 7:27 AM, Azelio Boriani via time-nuts <time-nuts at lists.febo.com> wrote:
> 
> The datasheet says "combined 5MHz and 1PPS signal 25% duty cycle with
> one 75% duty cycle at the 1PPS epoch", should be a pulsed 5MHz with a
> long pulse at the PPS, should be easy to implement in programmable
> logic.
> 
> On Wed, Dec 27, 2023 at 8:16 AM Kevin Babich via time-nuts
> <time-nuts at lists.febo.com> wrote:
>> 
>> Greetings,
>> 
>> I’m looking for a GPSDO solution approximating the TRAC-8835-2M  / 9100 composite 5MHz / 1PPS. While Occam’s razor dictates simply procuring the TRAC unit, 7 of them is out of the budget. Any thoughts?
>> 
>> Best,
>> 
>> KJB
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