[time-nuts] Message for Brooke from Chuck Norton
John Ackermann
jra at febo.com
Wed Aug 18 16:41:02 UTC 2004
Chuck sent this message to the list, but it
bounced, probably because he sent from an
address that wasn't subscribed to the list
(the list allows postings only from
subscribed addresses).
John
-----
Hi Brooke. I'm trying this again. I sent it
yesterday but it came back with
a message saying I'm not allowed to post to
the list. Not sure what's going
on there.
Hi Brooke:
According to my 4060 manual, you should be
able to turn it on, set the
modulation on/off switch to on, close the
loop and let it go. It technically
has a warm up time of 30 minutes but the
ones I have worked with usually
don't take more than about 20 minutes. Once
it has warmed up, the LOCK
indicator should come on. Press the ALARM
button and the alarm light should
go off.
While it is warming up and searching for
lock, the system locks out the
front panel controls other than the ones I
mentioned. There is an over ride
if needed.
Your readings all look good except the Beam
and Control. The reason it is
changing up and down on both of them is that
it is searching for a lock
signal. If you monitor the 5Mhz output, you
will probably also see it
changing along with the voltages. It sounds
like you may have a problem in
the unit. Try opening the loop and monitor
the 5 Mhz that way to see if it
is way off frequency or not. Be sure to turn
off the modulation for this
check also. Let me know what you find and I
will see if I can give you any
other ideas of where to look.
Chuck Norton
Frequency Standards & Services
2727 E. Palmer Park, Ste. 100
Colorado Springs, CO. 80909-3032
719-228-0540 voice
719-228-9009 fax
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