[time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A, Z3811A, Z3812A GPSDO system
tmiller11147 at verizon.net
Fri Oct 31 12:42:59 EDT 2014
I thought so too. There is an ultracap in each unit.
----- Original Message -----
From: "Mike Seguin" <n1jez at burlingtontelecom.net>
To: "Discussion of precise time and frequency measurement"
<time-nuts at febo.com>
Sent: Friday, October 31, 2014 12:19 PM
Subject: Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A, Z3810A,
Z3811A, Z3812A GPSDO system
>I have both of my units sitting on the bench. I found that I needed to
>connect them together to get the REF1 unit to come out of standby.
> I am using GPSCon to monitor and it appears to work fine.
> One thing on my units, when I power cycled them, it started a 'survey'
> over! I didn't expect that. Are others seeing this. There must be a way to
> store the surveyed position....
> On 10/30/2014 3:59 PM, Bob Stewart wrote:
>> Hi Anthony,
>> Did you power cycle both units as part of connecting them together at J5
>> to J5? And can you remind me whether you are using the supplied
>> interface cable, or are you using something else? After warmup, the ON
>> light is on for the REF-0 unit and the STBY light is on for the REF-1
>> unit. While running, there is no output from J8 on the unit marked STBY.
>> J8 works on the unit marked ON. There is a timestamp coming from J6, and
>> I think a 1PPS signal on some pin or other.
>> Bob From: Anthony Roby <aroby at antamy.com>
>> To: Discussion of precise time and frequency measurement
>> <time-nuts at febo.com>
>> Sent: Thursday, October 30, 2014 2:24 PM
>> Subject: Re: [time-nuts] Lucent KS-24361, HP/Symmetricom Z3809A,
>> Z3810A, Z3811A, Z3812A GPSDO system
>> I'm still having no luck with mine. When I power on, the LEDs cycle, the
>> Fault light is on and the No GPS and Standby lights flash. When I
>> connect my GPS antenna, the No GPS light stops flashing and stays on.
>> After several minutes only the Standby light is on.
>> When I connect both the Ref1 and Ref0 together with the interface cable,
>> the Fault lights on both units are illuminated.
>> Do you see the same? I don't know what to infer from the Fault light
>> since there is no supplemental data to work from.
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> Mike, N1JEZ
> "A closed mouth gathers no feet"
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