[time-nuts] Z38XX -- Z3816A

Rex rexa at sonic.net
Thu Jul 16 00:36:47 UTC 2009


Sorry I got the middle link wrong. Corrected below.

Rex wrote:

> Ulrich,
>
> First, many thanks for all the delevopment you have done and share 
> freely. You and John Miles are both to be commended for so much of 
> this kind of  work.
>
> I have a Z3816A and tried your program. Seems it would need to be 
> updated to support this GPS receiver.  I think it is pretty similar, 
> in commands, to the other Z38xx boxes. I wonder if you would be 
> willing to try adding support?
>
> If you are willing to look at it, I have put some details in this 
> message. Feel free to contact me -- rexa at xertech.net -- if you need 
> more specifics or testing from my Z3816A.
>
> -Rex, KK6MK
>
> There are some possible serial initialization issues. The help section 
> from GPSCon, describing this, can be found in the middle of this page:
> http://www.realhamradio.com/GPS_Z3816A_Receiver.htm
> (something odd happened with one of the pictures on that page.)
>
> The command structure is very close to chapters 4 and 5 in this document:
> http://www.leapsecond.com/museum/hp58540a/097-58540-01-iss-1.pdf

should be:   
http://www.leapsecond.com/museum/hp58503a/097-58503-13-iss-1.pdf

>
> with a similar description of the :SYST:COMM commands in this one:
> http://www.leapsecond.com/museum/hp58540a/097-58540-01-iss-1.pdf
>
> I used a serial terminal at 9600 baud to talk to my receiver and 
> capture the sequence below. I started with the 3816 serial interface 
> in FDUP (full duplex) mode so that the commands I sent show in the 
> capture. For normal communication it should be turned off, as I did 
> near the end.
>
> --- begin capture --- (viewed best with fixed width font)
> :SYST:COMM:SER1:FDUP?
> 1
>
> scpi > :PTIM:TCOD:CONT?
> 0
>
> scpi > *IDN?
> HEWLETT-PACKARD,Z3816A,3703A00148,4001-A
>
> scpi > :SYST:STAT?
> ------------------------------- Receiver Status 
> -------------------------------
> SYNCHRONIZATION ............................................. [ 
> Outputs Valid ]
> SmartClock Mode ___________________________   Reference Outputs 
> _______________
> >> Locked to GPS                              TFOM     3             
> FFOM     0
>   Recovery                                   1PPS TI +2.8 ns relative 
> to GPS
>   Holdover                                   HOLD THR 1.000 us
>   Power-up                                   Holdover Uncertainty 
> ____________
>                                              Predict  5.4 us/initial 
> 24 hrs
>                                               ACQUISITION 
> ................................................ [ GPS 1PPS Valid ]
> Tracking: 6 ____   Not Tracking: 0 ________   Time 
> ____________________________
> PRN  El  Az  C/N                              UTC      23:33:11     15 
> Jul 2009
>  7  27 112   48                              GPS 1PPS Synchronized to UTC
>  8  62  83   52                              ANT DLY  60 ns
> 11  23  82   49                              Position 
> ________________________
> 15  32 305   51                              MODE     Hold
> 17  52 183   51                             28  69 356   
> 50                              LAT      N  37:17:43.811
>                                              LON      W 121:56:09.784
>                                              HGT               +28.99 
> m  (GPS)
> ELEV MASK 16 deg                             HEALTH MONITOR 
> ......................................................... [ OK ]
> Self Test: OK    Int Pwr: OK   Oven Pwr: OK   OCXO: OK   EFC: OK   GPS 
> Rcv: OK
>
> scpi > :SYST:COMM:SER1:FDUP 0
>
> ( entered :PTIM:TCOD:CONT? )
> scpi > 0
>
> ( entered *IDN? )
> scpi > HEWLETT-PACKARD,Z3816A,3703A00148,4001-A
> scpi >
> --- end of capture ---
>
>
> Ulrich Bangert wrote:
>
>> Guys,
>>
>> I have just uploaded a new version of Z38XX with the following 
>> improvements:
>>
>> 1) Displays time AND date in the Nixie clock window
>>
>> 2) Knows how to read date & time from Jackson Labs receivers, so the the
>> clock window will function with them too.
>>
>> 3) Has a new "Manual Command Entry" which, well...., allows manual 
>> command
>> entry. The combobox still needs to be filled with more presets but 
>> you can
>> actually type in whatever you want. Note that the normal communication
>> thread is paused while this window is open. So close it whenever it 
>> is not
>> used.
>>
>> Enjoy
>> Ulrich Bangert
>>
>> Ulrich Bangert
>> www.ulrich-bangert.de
>> Ortholzer Weg 1
>> 27243 Gross Ippener
>>
>>
>>  
>>
>
>
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