[time-nuts] unknown Motorola GPSDO
stanley_reynolds at yahoo.com
Mon Sep 22 11:06:27 EDT 2008
Try a jumpers on the RS232 cable 4 to 5 and 6,8,20 together. If you have a RS232 break out box you could put it between the PC and GPSDO to see which levels change when the program is running.
----- Original Message ----
From: Bill Janssen <billj at ieee.org>
To: Discussion of precise time and frequency measurement <time-nuts at febo.com>
Sent: Sunday, September 21, 2008 8:48:45 PM
Subject: [time-nuts] unknown Motorola GPSDO
A friend of mine has two Motorola GPSDO's that I have little experience
I was checking one of the units using TAC32 and I discovered that it
would lock the 5 MHz
to GPS ( as compared with my Z3801) when the PC software was running
When I stopped
the TAC32 it would lose lock.
Anyone have a clue what this thing needs to stay locked..
The circuit board has a date of 1992 and it has a label that has
On the back it has connectors for;
48 Volt power
Remote GPS (10 pin)
1 PPS out
5 MHz out.
And an On Line LED
Amy place I can get more information?
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