VPLive not passing temps that are below 0 degrees?

[W3DRM]

I've just been looking at some CWOP/APRS data and noticed that while my station was reporting a temperature below 0 degrees F, it appears that invalid temp data was being sent to CWOP/APRS. Other data such as barometer, etc was passed fine. I've looked at the CWOP/APRS weather data files for the temp shown during the times it was actually below zero and all show as zeros. When I look at the raw data, it looks pretty strange with the temp data element showing something like "t--003";

Has anyone else noticed this? I don't know if it's a VPLive problem or what it could be.

[W3DRM]

Here's a sample of the raw data stream that was uploaded to CWOP/APRS. I've included mine as well as that from another Ham (N7NNV) who also had below zero readings in his stream.

This data stream is bad (errors marked in RED):

W3DRM>APRS,TCPXX*,qAX,APRSFL:@130854z3902.32N/11943.27W_068/005g006t000r000P000p000h65b10204VL1162
W3DRM>APRS,TCPXX*,qAX,FIRST:@130910z3902.32N/11943.27W_063/000g003t000r000P000p000h66b10206VL1162
W3DRM>APRS,TCPXX*,qAX,FIFTH:@130915z3902.32N/11943.27W_063/003g004t-00r000P000p000h66b10203VL1162
W3DRM>APRS,TCPXX*,qAX,FIFTH:@130919z3902.32N/11943.27W_062/001g004t--01r000P000p000h69b10207VL1162
W3DRM>APRS,TCPXX*,qAX,FIRST:@130930z3902.32N/11943.27W_062/000g002t--01r000P000p000h71b10208VL1162
W3DRM>APRS,TCPXX*,qAX,APRSFL:@130940z3902.32N/11943.27W_062/002g003t--01r000P000p000h68b10210VL1162
W3DRM>APRS,TCPXX*,qAX,APRSFL:@130945z3902.32N/11943.27W_062/001g003t--01r000P000p000h68b10211VL1162


This data stream is good (good field marked in GREEN):

N7NNV>APRS,TCPXX*,qAX,WXSERVER1:@130615z4102.37N/11534.10W_011/006g010t004r000p000P000b10170h80.WD 10
N7NNV>APRS,TCPXX*,qAX,WXSERVER1:@130630z4102.37N/11534.10W_006/003g008t002r000p000P000b10172h78.WD 10
N7NNV>APRS,TCPXX*,qAX,WXSERVER1:@130645z4102.37N/11534.10W_354/003g007t-02r000p000P000b10173h87.WD 10
N7NNV>APRS,TCPXX*,qAX,WXSERVER1:@130715z4102.37N/11534.10W_344/007g010t-01r000p000P000b10174h88.WD 10
N7NNV>APRS,TCPXX*,qAX,WXSERVER1:@130745z4102.37N/11534.10W_347/000g000t-01r000p000P000b10173h89.WD 10
N7NNV>APRS,TCPXX*,qAX,WXSERVER1:@130815z4102.37N/11534.10W_347/000g000t-01r000p000P000b10172h92.WD 10
N7NNV>APRS,TCPXX*,qAX,WXSERVER1:@130830z4102.37N/11534.10W_347/000g000t-01r000p000P000b10170h92.WD 10

Note that the bad data field has two dashes rather than a single dash in the temperature field. Based on these raw APRS data feeds, I now believe this is a VPLive problem.

[Gretnawx]

Same for me (using VPLIVE 1.6).  APRS/CWOP validator throws out the double minus sign reports and the temp/dewpoint graph ends when temp goes sub-zero    Have reported this bug via separate e-mail to Steve.

CW0453>APRS,TCPXX*,qAX,APRSFL:@151220z4109.52N/09611.53W_338/014g024t000r000P000p016h70b10254VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151224z4109.52N/09611.53W_334/014g024t-00r000P000p016h71b10256VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151229z4109.52N/09611.53W_341/013g021t-00r000P000p016h71b10257VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151235z4109.52N/09611.53W_337/012g021t-00r000P000p016h71b10257VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151240z4109.52N/09611.53W_338/013g020t-00r000P000p016h70b10258VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151245z4109.52N/09611.53W_344/016g021t--01r000P000p016h70b10260VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151250z4109.52N/09611.53W_331/011g021t--01r000P000p016h68b10260VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151255z4109.52N/09611.53W_339/009g018t--01r000P000p016h69b10261VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151300z4109.52N/09611.53W_340/011g017t--01r000P000p016h68b10264VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151305z4109.52N/09611.53W_340/011g019t--01r000P000p016h69b10264VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151310z4109.52N/09611.53W_337/011g019t--01r000P000p016h69b10265VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151315z4109.52N/09611.53W_338/011g017t--01r000P000p015h70b10266VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151320z4109.52N/09611.53W_343/012g017t--01r000P000p015h71b10266VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151325z4109.52N/09611.53W_346/012g017t--01r000P000p015h68b10267VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151330z4109.52N/09611.53W_349/012g017t--01r002P000p017h69b10267VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151335z4109.52N/09611.53W_345/012g017t--01r002P000p017h69b10267VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151340z4109.52N/09611.53W_338/010g017t--01r002P000p017h69b10267VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151345z4109.52N/09611.53W_340/010g020t--02r002P000p017h70b10270VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151350z4109.52N/09611.53W_326/009g020t--02r002P000p017h69b10270VL1161

[tinplate]

I should have a fix for this soon (today or tomorrow). I'll post a new thread announcing it when it's ready.

[W3DRM]

Thanks Steve. Only made it down to +1.7 last night so didn't affect anything.

[tinplate]

If someone is seeing below zero temps, could you download and try this version:

http://temp.softwx.com/vplive.exe

just put the exe in your VPLive folder (it's not the full install). I'd like someone seeing below zero to give this the thumbs up before I make an official release.

Steve

[W3DRM]

Or, if someone has a separate remote temp sensor they could place it in their freezer...  

[Gretnawx]

It has risen to +2F here now but it should be well below zero overnight.  I have the prposed update installed and will post info/status after our temp drops below zero this evening. Thanks.

[Gretnawx]

Can't verify temp handling until it drops sub-zero but I did notice that the proposed update is not sending 24 hr precip (see insert below).  The VPLive display on my PC indicates the correct 24 hour precip but it isn't making it into the APRS upload.  

CW0453>APRS,TCPXX*,qAX,APRSFL:@151810z4109.52N/09611.53W_336/011g018t002r000P000p016h63b10279VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151814z4109.52N/09611.53W_343/011g017t002r000P000p016h62b10280VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151820z4109.52N/09611.53W_325/009g017t002r000P000p015h62b10280VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151825z4109.52N/09611.53W_334/013g017t003r000P000p015h60b10280VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151830z4109.52N/09611.53W_338/011g018t003r000P000p014h61b10278VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151835z4109.52N/09611.53W_348/012g018t003r000P000h61b10278VL1171
CW0453>APRS,TCPXX*,qAX,APRSFL:@151840z4109.52N/09611.53W_350/013g021t003r000P000h61b10278VL1171

[Gretnawx]

OK, looks like the proposed VPLive update works for the negative temps  I manually set my console calibration until it read -2F.  The APRS upload showed the proper entry.  Also, the 24 hr precip did start appearing after the first two uploads (never noticed that before but may have always been that way).

CW0453>APRS,TCPXX*,qAX,APRSFL:@151625z4109.52N/09611.53W_344/012g019t--01r000P000p017h64b10295VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151630z4109.52N/09611.53W_351/013g021t--01r000P000p017h63b10298VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151635z4109.52N/09611.53W_338/012g021t--01r000P000p017h64b10298VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151640z4109.52N/09611.53W_333/012g020t-00r000P000p017h62b10279VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151645z4109.52N/09611.53W_345/009g020t-00r000P000p017h63b10280VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151650z4109.52N/09611.53W_345/012g019t-00r000P000p017h64b10280VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151655z4109.52N/09611.53W_328/013g020t-00r000P000p017h62b10281VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151700z4109.52N/09611.53W_329/011g020t-00r000P000p017h63b10281VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151705z4109.52N/09611.53W_330/012g019t000r000P000p017h64b10281VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151710z4109.52N/09611.53W_338/012g019t000r000P000p017h63b10282VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151715z4109.52N/09611.53W_339/013g019t000r000P000p017h62b10283VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151720z4109.52N/09611.53W_338/012g018t000r000P000p017h61b10282VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151724z4109.52N/09611.53W_343/014g021t001r000P000p017h62b10281VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151730z4109.52N/09611.53W_346/013g021t001r000P000p017h63b10281VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151735z4109.52N/09611.53W_339/010g019t001r000P000p017h63b10280VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151740z4109.52N/09611.53W_330/011g019t001r000P000p017h61b10279VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151745z4109.52N/09611.53W_343/008g019t001r000P000h62b10281VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151805z4109.52N/09611.53W_332/010g024t002r000P000h62b10279VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151810z4109.52N/09611.53W_336/011g018t002r000P000p016h63b10279VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151814z4109.52N/09611.53W_343/011g017t002r000P000p016h62b10280VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151820z4109.52N/09611.53W_325/009g017t002r000P000p015h62b10280VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151825z4109.52N/09611.53W_334/013g017t003r000P000p015h60b10280VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151830z4109.52N/09611.53W_338/011g018t003r000P000p014h61b10278VL1161
CW0453>APRS,TCPXX*,qAX,APRSFL:@151835z4109.52N/09611.53W_348/012g018t003r000P000h61b10278VL1171
CW0453>APRS,TCPXX*,qAX,APRSFL:@151840z4109.52N/09611.53W_350/013g021t003r000P000h61b10278VL1171
CW0453>APRS,TCPXX*,qAX,APRSFL:@151845z4109.52N/09611.53W_350/014g021t003r000P000p013h61b10275VL1171
CW0453>APRS,TCPXX*,qAX,APRSFL:@151850z4109.52N/09611.53W_343/011g021t003r000P000p012h60b10275VL1171
CW0453>APRS,TCPXX*,qAX,APRSFL:@151855z4109.52N/09611.53W_330/010g021t-02r000P000h62b10273VL1171

[tinplate]

If VPLive can't read the history from a WeatherLink generated WLK file to initialize its rain accumulator, then it won't start sending the 24 hour rain until is has collected 24 hours of data on its own. The console does not provide that data item directly (only rain since midnight).

I plan on initializing the rain data by reading the history directly from the console in the future so this won't be an issue. This is a holdover from VPLive's origins.

[W3DRM]

Steve,

Looks like we may get close to or below 0 tonight so have downloaded and installed VPLive 1.1.7.2 to see what happens. All looks good so far but it's only down to 10.9 so far... If it goes below 0 overnight, I'll let you know what happens.

Thanks for the quick response to this issue!

[Gretnawx]

Updated .exe worked fine overnight with a low temperature of -9.  All APRS/CWOP uploads were accepted.

http://www.findu.com/cgi-bin/wxpage.cgi?call=CW0453&last=48

[W3DRM]

We only made it down to 2.7F so, no cigar...