Claude
Are you using the same software on the same computer platform for the
whole time?
By example I have a Z3801 which works sometimes under Z38xx and
sometimes not, while SATSTAT works all the time. I did find some flaky
things going on with the software and was finding that I had to close
Z38xx and reopen it after every command to change something?
Dave
On 1/26/2016 11:39 AM, [email protected] wrote:
Hello list !
I have a HP 58503A who worked fine for two years.
After a short power cut, it does not lock on GPS. I tried some commandsn
including :SYST:PRESET but nothing works
Here's a :SYSTEM:STATUS ? after the PRESET and after waiting a few hours :
------------------------------- Receiver Status -------------------------------
SYNCHRONIZATION ........................................... [ Outputs Invalid ]
SmartClock Mode ___________________________ Reference Outputs _______________
Locked TFOM 9 FFOM 3
Recovery 1PPS TI --
Holdover HOLD THR 1.000 us
Power-up: GPS acquisition Holdover Uncertainty ____________
Predict --
ACQUISITION .............................................. [ GPS 1PPS Invalid ]
Tracking: 0 ____ Not Tracking: 6 ________ Time ____________________________
PRN El Az UTC 16:06:43 [?] 29 Feb 2016
* 1 -- --- GPS 1PPS Invalid: not tracking
* 6 -- --- ANT DLY 0 ns
* 9 -- --- Position ________________________
*14 -- --- MODE Survey: 0% complete
*22 -- --- Suspended: track <4 sats
*24 -- --- INIT LAT N 596:30:43.423
INIT LON E 596:31:10.845
ELEV MASK 10 deg *attempting to track +21474708.00 m
(MSL)
HEALTH MONITOR ......................................................... [ OK ]
Self Test: OK Int Pwr: OK Oven Pwr: OK OCXO: OK EFC: OK GPS Rcv: OK
I tried to set the date with :GPS:INIT:DATE 2016,01,26 but this command has no
effect.
Setting the LAT and LON with :GPS:POS «myposition» works.
------------------------------- Receiver Status -------------------------------
SYNCHRONIZATION ........................................... [ Outputs Invalid ]
SmartClock Mode ___________________________ Reference Outputs _______________
Locked TFOM 9 FFOM 3
Recovery 1PPS TI --
Holdover HOLD THR 1.000 us
Power-up: GPS acquisition Holdover Uncertainty ____________
Predict --
ACQUISITION .............................................. [ GPS 1PPS Invalid ]
Tracking: 0 ____ Not Tracking: 6 ________ Time ____________________________
PRN El Az UTC 02:58:13 [?] 24 Mar 2016
* 3 -- --- GPS 1PPS Invalid: not tracking
* 4 -- --- ANT DLY 0 ns
* 8 -- --- Position ________________________
* 9 -- --- MODE Hold
*23 -- ---
*29 -- --- LAT N blah blah
LON E blah blah
ELEV MASK 10 deg *attempting to track HGT +194.57 m (MSL)
HEALTH MONITOR ......................................................... [ OK ]
Self Test: OK Int Pwr: OK Oven Pwr: OK OCXO: OK EFC: OK GPS Rcv: OK
But the unit is still not tracking, it sees the birds because the PRN are
changing but
does not calculate the "El" and "Az" ...
Here is the output of :DIAGnostic:LOG:READ:ALL?
Log 001:20160122.00:00:00: Log cleared
Log 002:20160122.00:00:00: System preset
Log 003:20160122.00:00:35: Self-test failed
Log 004:20160122.00:12:38: Position hold mode started
As you can see, the date is 2016-01-22, it's the date when the power cut
happened .
And when I run :GPSYSTEM:POSITION:SURVEY ONCE, I get the same first status
with crazy
lattidude and longitude.
Finally a self test *TST? gives +0 and the ALARM LED and the LOCK LED are off.
I've tried with a second antenna and have the same problem :-(
Can someone give me an advice for this problem ? The receiver looks dead, no ?
Thanks in advance,
Claude
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--
Dave
[email protected]
www.ArtekManuals.com
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