[time-nuts] GPRS zero azimuth and elevation, most PRN displayed as not O/K,

[Azelio Boriani]

12 minutes are enough to receive the data... another strange thing is
that you have the 1PPS TI always 0. Have you already given the
:SYST:PRES command to preset the receiver to the factory settings?

On Wed, Jun 26, 2013 at 6:13 PM, Mark C. Stephens <marks at non-stop.com.au> wrote:
> Hi Azelio, err...
>
>
> E-113>:syst:stat?
> [ Unlocked ] ------------------ GPSR 2 Status --------------------------------
> SYNCHRONIZATION ........................... [ Outputs Valid/Reduced Accuracy ]
> SmartClock Mode _________________________    Reference OutPuts _______________
>    Locked to GPS                             TFOM     3          FFOM        3
>    Recovery                                  1PPS TI  +0 ns
>    Holdover                                  HOLD THR
>>> Power-up: OCXO Warm-up                    Holdover Uncertainty_____________
>                                              Predict
>
> ACQUISITION ............................................... [ GPS 1PPS Valid ]
> Tracking: 6       Not Tracking: 0            Time ____________________________
> PRN  El  Az  C/N   PRN  El  Az               LOCL GPS 02:10:05     27 Jun 2013
>   7    0   0   39                            GPS 1PPS  Synchronized to GPS
>   8    0   0   50                            ANT DLY      28 ns
>   9    0   0   52                            Position ________________________
>  15    0   0   44                            MODE     Survey:   1.3% complete
>  17    0   0   49
>  24    0   0   39                            AVG LAT  S  33:45:49.689
>                                              AVG LON  E 151:05:31.705
>                                              AVG HGT          +131.66 m  (MSL)
> ELEV MASK 10 deg
> HEALTH MONITOR ........................................................ [ OK ]
> Self Test: OK   Int Pwr: OK   Oven Pwr: OK   OCXO: OK   EFC: OK   GPS Rcv: OK
> Alarms:    (none)
>
>
>
>
> They are all zero now!
> I have just changed eman to 10 and rebooted.
> I guess it must be something to do with almanac,
> perhaps being patient and waiting a day or 3 may yield a change.
> Hopefully for the better.
>
>
> marki
>
> -----Original Message-----
> From: time-nuts-bounces at febo.com [mailto:time-nuts-bounces at febo.com] On Behalf Of Azelio Boriani
> Sent: Wednesday, 26 June 2013 7:09 PM
> To: Discussion of precise time and frequency measurement
> Subject: Re: [time-nuts] GPRS zero azimuth and elevation, most PRN displayed as not O/K,
>
> Try to put the elevation mask to 10degrees, not 25 :GPS:SAT:TRAC:EMAN 10
>
> On Tue, Jun 25, 2013 at 8:41 AM, Mark C. Stephens <marks at non-stop.com.au> wrote:
>> I have a GPSR2 with unusual; GPS behaviour.
>>
>> E-113>:syst:stat?
>> [ Active ] -------------------- GPSR 2 Status
>> -------------------------------- SYNCHRONIZATION ........................... [ Outputs Valid/Reduced Accuracy ]
>> SmartClock Mode _________________________    Reference OutPuts _______________
>>>> Locked to GPS                             TFOM     3          FFOM        0
>>    Recovery                                  1PPS TI  +0 ns
>>    Holdover                                  HOLD THR
>>    Power-up                                  Holdover Uncertainty_____________
>>                                              Predict
>>
>> ACQUISITION ............................................... [ GPS 1PPS Valid ]
>> Tracking: 5       Not Tracking: 7            Time ____________________________
>> PRN  El  Az  C/N   PRN  El  Az               GPS      06:37:39     25 Jun 2013
>>   1    0   0   49    3  Not OK               GPS 1PPS  Synchronized to GPS
>> 11    0   0   47    6  Not OK               ANT DLY      28 ns
>> 14   25 349   43   15  Not OK               Position ________________________
>> 31    0   0   49   18  Not OK               MODE     Hold
>> 32    0   0   47   21  Not OK
>>                     22  Not OK               LAT      S  33:45:49.374
>>                     27  Not OK               LOG      E 151:05:31.495
>>                                              HGT              +118.61 m  (MSL)
>> ELEV MASK 25 deg
>> HEALTH MONITOR ........................................................ [ OK ]
>> Self Test: OK   Int Pwr: OK   Oven Pwr: OK   OCXO: OK   EFC: OK   GPS Rcv: OK
>> Alarms:    (none)
>>
>>
>> As you can see the Azimuth and elevation are zero.
>>
>> Group opinion please, bad antenna connector or bad GPS module?
>>
>>
>> -marki
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