"Poul-Henning Kamp" writes:
> The PRS-10 switches the polarity of the C-field solenoid at 5Hz to
> cancel out varying external magnetic fields.
>
> If that is not a concern for you, for instance because you use it
> in a stationary application, it can be disabled with the "MS0" command.
>
> It's
Dana Whitlow writes:
> But if you can stand the ADEV hump around 2 sec, the PRS-10 is delightful.
The PRS-10 switches the polarity of the C-field solenoid at 5Hz to
cancel out varying external magnetic fields.
If that is not a concern for you, for instance because you use it
in a statio
Hi Dana:
My PRS10 is a couple decades old and I use it in the 1PPS locking mode. But that may not have been the default. Maybe
the surplus units just need the correct jumper change.
https://prc68.com/I/PRS10.shtml
--
Have Fun,
Brooke Clarke
https://www.PRC68.com
axioms:
1. The extent to whi
Dana Whitlow writes:
> But if you can stand the ADEV hump around 2 sec, the PRS-10 is delightful.
>
> BTW, the ordinary factory new PRS-10 does provide for direct locking to 1
> PPS,
> but many of the available surplus units had that feature removed. Tne new
> PRS-10's sold for years for $1595,
But if you can stand the ADEV hump around 2 sec, the PRS-10 is delightful.
BTW, the ordinary factory new PRS-10 does provide for direct locking to 1
PPS,
but many of the available surplus units had that feature removed. Tne new
PRS-10's sold for years for $1595, but I see that it has gone up to $
Bob kb8tq 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”
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
I have been looking at it for years had an email conversation with the designer
and Bob. This box is not intended for time nuts and does sell very well, price
has gone up over 20 percent. It would be nice if one could use an external
OCXO or Rb and using the Internet interface and have SRS down
I think that before one places much faith in the ADEV data, it's important
to understand the thermal environment in which the tests were conducted,
compared to your own thermal environment. The tests were likely to have
been performed in a well-stabilized ambient temperature, to make them
look goo
Hi
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
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