[time-nuts] Re: OCXO McCoy Electronics OSC92-51B

[DM]

On a hunch, I searched for the other part number on the nameplate (0960-0477) in one of the military stock reseller's database and found that the only end item that this oscillator was used in was the AN/FPS-115 PAVE PAWS (Precision Acquisition Vehicle Entry - Phased Array Warning System) radar system, developed in the 1980s for the US Navy. I searched for any technical information on this system and came up empty. Maybe someone else can do better than I did. 
The national stock number for the oscillator is 5955-01-086-8122, and is described as a NON-CRYSTAL Controlled oscillator!! 

Good luck in your search, 

DaveM 

From: "Bob kb8tq" <kb8tq at n1k.org> 
To: "Discussion of precise time and frequency measurement" <time-nuts at lists.febo.com> 
Sent: Tuesday, April 13, 2021 5:58:15 PM 
Subject: [time-nuts] Re: OCXO McCoy Electronics OSC92-51B 

Hi 

Since this is a part that Ovenaire made for HP, probably the best way to 
work out what’s what is to find the equipment that it went into. Best guess 
is that would be an item that shows up in the 1985 ~ 2005 HP catalogs. 

( = OSC92 is an Ovenaire part number that was carried on after McCoy 
folded Ovenaire into the “empire”). That makes it a > 25 year old spec. 

Rough guess at the specs: 

5x10^-8 over 0 to 70C 
-150 dbc/Hz at 10 KHz offset 
10 dbm +/- 3 db 
10W power at turn on. 

With the fine adjust it may or may not have an EFC. There are enough pins for 
it to have one. 

Pinout looking at it with the SMA “up” and numbering from left to right: 

1) V- / return / ground 
2) Case 
3) B+ 
4) ??? 
5) ??? 
6) ground 

Bob 

> On Apr 13, 2021, at 3:17 PM, Juerg Koegel <j.koegel5 at gmail.com> wrote: 
> 
> I am looking for data (PinOut, Power, Stability, Phase Noise, EFC ) for the 10MHz OCXO McCoy Electronics OSC92-51B. 
> Thanks for all information. 
> 
> Juerg 
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