[time-nuts] Z3816A alarm

[Bill Jones, K8CU]

Rex,

Unlike the Z3801A, the Z3816A has an alarm specific for the antenna.  I
suggest that you view a thread on my site that describes this condition as
well as a work-around for it:
http://realhamradio.com/cgi-bin/yabb/YaBB.cgi?board=1;action=display;num=1036696003;start=4

Bill Jones, K8CU
www.realhamradio.com


----- Original Message ----- 
From: "Rex" <rexa at sonic.net>
To: <time-nuts at febo.com>
Sent: Saturday, January 22, 2005 12:58 AM
Subject: [time-nuts] Z3816A alarm



I hope someone can help me understand why I have an alarm light.

I had my Z3816A running well for quite a while. The other day, I played
with trying a different GPS antenna. As expected the box went into
holdover while I had the antenna disconnected. With the new antenna
everything seems ok except I have an alarm light on the box. It didn't
go out after >24 hrs. I cycled power today and it seems to be locked ok
and no major error, but I still have the alarm light.

I have been trying to read the status to see what the box doesn't like.
I can't seem to find any condition that should have the alarm light on.

Am I correct that *STB? should read the final register that generates
the alarm light? I get 0 when I read that. The *SRE? gives me 136 which
I believe is the mask selecting Operational Summary and Questionable
Summary. So if I am correct, I have no status condition for the alarm,
but the light is on.

As far as I can tell, this stuff is the same as for the Z3801A. Am I
missing something that would be the source of my alarm light? Any
suggestions how I can turn it off?

BTW, my current mode is Locked to GPS:Stabilizing Frequency so it is not
in final mode yet, but I don't see this making the Alarm light come on
from the Status charts.

thanks,
-Rex


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