[aprssig] KPC-3 & U-100 WX Station issues?

Kriss A Kliegle kliegle at verizon.net
Mon Jan 21 09:13:26 EST 2008

   I placed the $ULTW in there to see if the WX station was changing outputs on me by itself, as I've read elsewhere on the this sig. Indeed it has, it was set up send the Data Logging Mode w/the !!xxxxxxxetc. But by the time I walked back to the house (WX station/Digi is in a shed at the base of a 68' tower atop the hill in backyard) and observed w/APRSDOS, it was sending out $ULTW strings! The TNC is Ver 7265-8.2 and GPSPORT comes back w/an EH?, when accessed remotely from the house station. So thats why I have both strings in the GPSHEAD settings. So GPSPORT is not a valid command, unless it's only valid when out of the INTFACE  command is  changed back to TERMINAL. For that I have to climb the hill w/laptop and connect directly, reset the TNC and reset ALL parameters again. Which I've done w/both TNC's per Bob's reccommedations, changing only the 10 or so commandshe suggensts after a hard reset to default parameters. 

  I thought it might be temperature related, so WX station display head, Rig, TNC were all placed in a cheap styrofoam cooler with a removable top. Same thing, would work for a while, then the LT buffers would stay the same until I remotely erased them and found they wouldn't receive new data despite valid data streaming from WX station as viewed w/a laptop tapped into the serial data stream.

  Thanks for the one and only response from all the readers!

Kriss KA1GJU

PS Have 'GJU-6 aeronautical tracker in Beta testing.... Open Tracker, Yaesu VX-1R, and Deluo GPS. Found out on my last trip that the Deluo GPS can't lock onto SATs once it unlocks and speed is over 200+ Kts. Gonna have to change GPS units, one that can restablish position whilst under fast speeds! hi hi

  ----- Original Message ----- 
  From: Andy AB9FX 
  To: TAPR APRS Mailing List 
  Sent: Saturday, January 19, 2008 9:02 PM
  Subject: Re: [aprssig] KPC-3 & U-100 WX Station issues?

  I'm not sure what is the reason to get both data strings one starting with !! and another starting with $ULTW. If Ultimeter is in Data Logging Mode, data starts with !! header. If Ultimeter is in Packet Mode, data starts with $ULTW header. Just choose one of them.
  Settings you gave below for KPC-3 are to connect Ultimeter to TNC computer port. Before you go to INTFACE GPS, make sure GPSPORT is set to zero.

  There is another option, you can connect Ultimeter output to KPC-3 radio port pin 2. Then you can leave INTFACE TERMINAL to monitor packets and data buffered in LT. Settings I use in such option (U2000 packet mode, SR3DGT http://www.aprs.pl/gontyniec.htm):

  LT 4
  LTP 4 APN391 VIA WIDE2-2
  BLT 4 EVERY 00:00:30 START 00:01:00 CLEAR

  Even if BLT 4 is set every 30 seconds, in fact, is tx every 5 minutes. Ultimeter sends data in packet mode every 5 minutes. LT 4 buffer is cleared after tx. If buffer is empty, there is no tx. And wx data is never older than 30 seconds.

    ----- Original Message ----- 
    From: Kriss A Kliegle 
    To: TAPR APRS Mailing List 
    Sent: Wednesday, January 16, 2008 13:03
    Subject: [aprssig] KPC-3 & U-100 WX Station issues?

    Been having one heck of a time getting my WX station back on line. Did hard reset and programming per Bob's reccomendations and still can't get the LTracks to copy the WX data. AB 2400, INTF GPS, GPSH 1 !!, GPSH 2 $ULTW, .... Once in a great while it will capture a line of data, but then it will not update. I remotely access it wipe out the old data in LT buffers and nothing. Laptop connected at same time as KPC-3 shows valid streams of !!xxxxxxxxxxxxxxxxx      xxxxxxxxxxxxxxxxxxxxxx    type data every second, so U-100 is sending. In the past, turning off the KPC-3 and turning it on worked. Would happen once every few months. Now I've swapped out TNC's, cables, power leads (ground loop issues?), to no avail. Gonna put a U-500 up there now for a test, but since the nearby lighting hit, it's temp is stuck on 108 deg even w/out the probe connected! Anyone with similar issues? It's a solar powered site, and TNC, IC-2000H, U-100 are in an insulated box. Heat from radio keeps inside at 80+ degreres. I thought the issue was temp related, cause it would fail on cold nights, below 22 deg F. That shouldn't be an issue now for all parts are toasty, and were working for two months in new home until recently.
    73 de Kriss


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