[App_rpt-users] RTCM voter problem - try 2

Wed Apr 6 14:33:58 UTC 2016

From what I recall (because I had this happen) a mixed client error means the voter.conf file is expecting an RTCM to try and connect with a GPS IP packet (ie has master in it), but the RTCM isn't sending a GPS IP packet. So its a mismatch between voter.conf and option 10 in the RTCM. 

The GPS led will go solid regardless of the connection LED. That has to happen or it wont connect. My setup takes 20 mins to get a GPS lock LED using a Trimble Thunderbolt after any reboot. I also had crazy problems with poor signal on my GPS when I set it up sitting in a window, and once installed at site I had the GPS antenna maybe 6 ft from the VHF antenna, and after some troubleshooting found it was getting swamped with RF and loosing lock. 

I found the debug setting of 40 useful in the RTCM, you can see a hex output if the GPS status. I posed on here what its supposed to be a while back. All 0's is bad. 

Cheers,
Jesse

> On Apr 5, 2016, at 12:49 PM, James Cizek <james.m.cizek at gmail.com> wrote:
> 
> 
> 
> Thanks Sam,  that was a good catch.  I have tried so many different things I didn't see that I missed putting that back in.
> 
> It did not help anything. I restarted asterisk, and rebooted the RTCM.  It just sits there saying the GPS receiver is active and that it sees 9 satellites.  The yellow light blinks forever and it never logs into the asterisk server.
> 
> With the "master" setting in voter.conf, it's apparent that the RTCM is talking to the server as when the menu item 10 is set to "2"(none),  the asterisk log spools by with many "voter client trying to authenticate as a mix client" error.   This stops happening immediately when menu item 10 is set to either 0 or 1 (as would be expected).
> 
> Any other ideas on where to look?   Thanks for the help!
> 
> James
> KI0KN
> 
>> On Tue, Apr 5, 2016 at 1:27 PM, Sam Skolfield <kj6qfs at gmail.com> wrote:
>> try this: you need to specify a "master" timing source. 
>> 
>> 
>> [general]
>> port = 667
>> buflen = 200
>> password = blah
>> 
>> [1115]
>> Horsetooth = blah,master,transmit
>> plfilter = y
>> txtoctype = none
>> 
>>> On Tue, Apr 5, 2016 at 11:56 AM, James Cizek <james.m.cizek at gmail.com> wrote:
>>> Hi all,
>>> 
>>> I posted this problem many months ago and I came to the conclusion at that time that it was my 1PPS signal from the GPS into the RTCM that was the problem.  I have changed hardware now to fix that and I still have the problem so I am suspecting a config issue and hope someone will have an idea.
>>> This is on a stock DIAL box.
>>> 
>>> RTCM is setup and working great as a standard node.  
>>> Everything is working great on the repeater as long as RTCM is in non-voter mode.
>>> 
>>> I have the chan_voter module loading in modules.conf.  
>>> 
>>> Here is my voter.conf:
>>> 
>>> [general]
>>> port = 667
>>> buflen = 200
>>> password = blah
>>> 
>>> [1115]
>>> Horsetooth = blah,transmit
>>> plfilter = y
>>> txtoctype = none
>>> 
>>> 
>>> I am happy to share any other config if requested.
>>> 
>>> In the RTCM menus, I have a static IP, I have the voter server IP, all the approriate IP fields filled out. As mentioned, the RTCM works fine with the asterisk server when it's in non-voter mode.
>>> 
>>> Here's the way I am testing:
>>> Verify RTCM menu item 10 is set to (2) None.
>>> 
>>> Boot server, then boot RTCM.  RTCM console says:
>>> 
>>> GPS Receiver Active, waiting for aquisition
>>> GPS signal acquired, number of satellites in view = 9
>>> 04/05/2016 17:58:17.560  Time now syncronized to GPS
>>> 04/05/2016 18:13:18.580  Host Connection established (Pri) (10.16.1.240)
>>> 
>>>  I have a very nice, clean, 5Volt 1PPS signal going to pin 7 on the DB15.  Verfied with o-scope.
>>> 
>>> as soon as I change menu item 10 on the RTCM to either a (1) or a (0) instead of (2),  I *instantly* get this on the RTCM console:
>>> 
>>> 04/05/2016 18:44:13.660  Lost GPS Time synchronization
>>> 04/05/2016 18:44:13.660  Host Connection Lost (Pri) (10.16.1.240)
>>> 
>>> and it sits there forever and never re-establishes connection to the host.
>>> 
>>> Here is a snippet of the GPS output:
>>> 
>>> $PFEC,GPtps,160405181603,1,0,1,150701000000,00,17,160405165607,1891,238580
>>> $GPGGA,181603,4020.9810,N,10506.4515,W,0,07,00.00,001566.7,M,-020.0,M,,
>>> $GPGSV,2,1,08,03,53,215,46,07,09,253,37,09,28,305,39,16,63,126,43
>>> $GPGSV,2,2,08,22,26,178,44,23,60,316,43,26,52,066,41,31,17,061,34
>>> $GPRMC,181603,V,4020.9810,N,10506.4515,W,,,050416,008.9,E,N*1A
>>> $PFEC,GPtps,160405181603,3,0,1,150701000000,00,17,160405165607,1891,238580
>>> $GPGGA,181604,4020.9810,N,10506.4515,W,0,03,00.00,001566.7,M,-020.0,M,,
>>> $GPRMC,181604,V,4020.9810,N,10506.4515,W,,,050416,008.9,E,N*1D
>>> $PFEC,GPtps,160405181604,3,0,1,150701000000,00,17,160405165607,1891,238581
>>> $GPGGA,181605,4020.9812,N,10506.4495,W,1,07,01.73,001573.3,M,-020.0,M,,
>>> $GPRMC,181605,A,4020.9812,N,10506.4495,W,,,050416,008.9,E,A*0F
>>> $PFEC,GPtps,160405181605,3,0,1,150701000000,00,17,160405165607,1891,238582
>>> $GPGGA,181606,4020.9812,N,10506.4494,W,1,07,01.73,001573.2,M,-020.0,M,,
>>> $GPRMC,181606,A,4020.9812,N,10506.4494,W,000.0,283.2,050416,008.9,E,A*06
>>> 
>>> 
>>> I am just not sure where to go from here.  I can't seem to find anyone that's had any problem like this or what might be causing it.
>>> 
>>> I have tried 5 different RTCMs and 5 different GPSs from 3 different manufacturers.
>>> 
>>> Any suggestions on what I might be missing?
>>> 
>>> Many thanks for any help anyone can offer!
>>> 
>>> James 
>>> KI0KN
>>> 
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>> 
>> 
>> 
>> -- 
>> KJ6QFS
>> Sam Skolfield
> 
> 
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