[time-nuts] Austron 1210D Manual Update

[Brian Kirby]

PMEL is the correct term in the Air Force.  It stands for Precision 
Meteorological Electronic Lab, it the branch of the Air Force that does 
test equipment calibration.

The 1210D was standard test equipment for labs that did not have 
rubidiums and cesiums, which was quite a few.

When I worked in satellite communications back in the late 70s, early 
80s, I seen a lot of these units (1210D).  We used HP cesium beams at 
the earth stations.  These units were tracked back the USNO, and we used 
a modem to do time transfer over the air, to check the cesiums drift. 
The cal labs brought there 1210D's to our site about every 30 days to 
calibrate and sync the 1210s.

Rob Kimberley wrote:
> Hi John,
> 
> Not heard that one before. It is always possible that there was some batch
> selection, but unaware of this during my time (July '85 to Dec '88).
> 
> Rob 
> 
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On
> Behalf Of John Ackermann N8UR
> Sent: 09 March 2007 13:29
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] Austron 1210D Manual Update
> 
> Rob Kimberley said the following on 03/09/2007 03:25 AM:
>> John,
>>
>> The unit shipped with Austron's 1150 OCXO - a VERY nice oscillator. I 
>> also believe that they sold a bunch of these units to the US Navy for 
>> portable references to sync up Subs.
> 
> Hi Rob --
> 
> I had heard mutterings that the 1150s that went into the 1210s weren't quite
> as hand-picked as the ones that went into the 1250A standard, but this one
> seems to be doing quite well.  (I just got a 1250A that on a quick test
> performs at least as well as this 1210; I'll be doing a better test after
> it's had a chance to stabilize for another week or two.)
> 
> It does appear that an awful lot of the 1210s went into various military
> applications; one of the few references I found on-line was to one of the
> PMEL (I think I got that acronym right) chat groups for the Air Force.
> 
> John
> 
> _______________________________________________
> time-nuts mailing list
> time-nuts at febo.com
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
> 
> 
> 
> _______________________________________________
> time-nuts mailing list
> time-nuts at febo.com
> https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
>