[aprssig] Re: Ultimeter II & KPC3+
Kurt O. Jauss
kf6hjo at earthlink.net
Mon Feb 7 10:11:38 CST 2005
After looking in to this, it looks like you might be out of luck
using this weather station tied directly to a TNC. One option (
although expensive ) is to run WEATHERDISPLAY.
ULTIMETER II SERIAL DATA OUTPUT
The following information is provided for those who may wish to write
their own programs to use serial data from the ULTIMETER II.
The ULTIMETER II provides serial data output at a nominal 2400 baud
rate. This a one way data flow with no handshaking. The serial output
rate averages about 15 records per minute. The serial output is briefly
interrupted at times while the microprocessor attends other functions.
If an output record is interrupted, the balance of the same record will
be output following the interruption. Each record starts with an
asterisk (mph) or pound sign (kmph), and ends with a carriage return and
a line feed, in the sequence shown below:
* or # START OF RECORD (1BYTE)
CURRENT WIND DIRECTION (1 HEX DIGIT) 0 IS NORTH, 4 IS EAST, ETC.
CURRENT WIND SPEED (2 HEX DIGITS) IN MPH IF *: IN KMPH IF #
CURRENT TEMPERATURE (2 HEX DIGITS) SUBTRACT 56 FOR DEGREES F
UPPER RAIN GAUGE (4 HEX DIGITS) DIVIDE BY 10 OR 100 FOR INCHES*
LOWER RAIN GAUGE (4 HEX DIGITS) DIVIDE BY 10 OR 100 FOR INCHES*
* Divide by 10 if your rain gauge senses each 0.1 (0.5mm).
* Divide by 100 if your rain gauge senses each 0.01 (or 0.25mm).
Bruce, KQ4TV wrote:
> An additional change that I made was:
> GPSPORT 2400 NORMAL NOCHECK
> but it still does not seem to work.
> I also tried hooking up my Ultimeter II to a Byonics WXtrak but it
> appears to not support the Ultimeter II in "#" mode and I don't know
> haw to change it to "!!" mode.
> Bruce, KQ4TV
> On Feb 2, 2005, at 9:57 AM, Bruce W. Martin wrote:
>> Yes I have confirmed that the UII us using # as the first character
>> in it's output.
>> Is the GPSHW in LTP that significant?
>> BTW, it would seem that Kantronics has eliminated the second
>> (software) serial port capability in the 9.0 firmware of the KPC3+
>> Bruce, KQ4TV
>> On Feb 2, 2005, at 9:34 AM, Kurt O. Jauss wrote:
>>> First verify that the Wx station outputs a !! or # string. Then
>>> program the TNC for ...
>>> GPSH 1 !! or
>>> GPSH 1 #
>>> BTP 1 e 00:05:00
>>> LTP GPSHW via WIDE2-2
>>> Good luck
>>> Bruce, KQ4TV wrote:
>>>> I have a KPC3 Plus (v8.3) that I am using at home with my Igate
>>>> I have hooked my Ultimeter II to the GPS port, the second read-only
>>>> serial port wired through the radio port.
>>>> I am using the following settings:
>>>> gpshead 1 #
>>>> LTP 1 aprs via wide,OHX2-2
>>>> BLT 1 every 00:05:00
>>>> GPSPORT 2400 NORMAL CHECKSUM
>>>> The station location is showing up via both RF and internet but I
>>>> am not seeing any WX data.
>>>> Has anyone else successfully made this work?
>>>> Bruce W. Martin, KQ4TV
>>>> Trustee for AA4VU
>>>> Vanderbilt University Amateur Radio Club
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