[time-nuts] unknown Motorola GPSDO
Stanley Reynolds
stanley_reynolds at yahoo.com
Mon Sep 22 15:06:27 UTC 2008
Bill,
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.
Stanley N4IQT
----- 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
with.
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
TRN7793818 LA081WN.
On the back it has connectors for;
48 Volt power
Redundancy Control
Remote GPS (10 pin)
RS232 DCE
1 PPS out
5 MHz out.
And an On Line LED
Amy place I can get more information?
Bill K7NOM
_______________________________________________
time-nuts mailing list -- time-nuts at febo.com
To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts
and follow the instructions there.
More information about the Time-nuts_lists.febo.com
mailing list