[time-nuts] Re: FS740 Thoughts?

[Bob kb8tq]

Hi

In this case it’s not thermal. I’ve tested a ton of parts in the same environment ( maybe
not 2,000 pounds but several hundred OCXO’s ). 

The PRS-10 gives you that hump at 2 seconds no matter what you do. It’s part of the
basic design of the unit ….

Bob

> On Nov 17, 2021, at 10:16 AM, Matt Huszagh <huszaghmatt at gmail.com> wrote:
> 
> Bob kb8tq <kb8tq at n1k.org> writes:
> 
>> I have a 740 as do others on the list. The big gotcha is the OCXO in the device.
>> It has various quirks that limit the performance of the device. The ADEV plot they
>> show for the OCXO is a “sometimes / maybe / might” sort of thing. One of the 
>> “get to it eventually” projects here is to see if it can be replaced with something 
>> that has better ADEV performance. 
> 
> Good to know. Have you tried disciplining the PRS-10 in one of these
> units? Based on Dana's comments, it sounds like this may not exhibit the
> same ADEV susceptibility to the thermal environment.
> 
> Matt