Brian, I exchanged some email with Steve Dimse at findu.com.
Steve suggested that I use the Data Logger format from my Peet Bros Weather station. This format has !! as the first two characters of the header. findu.com is working with both the $ULTW header and the !! header. The peet bros station only sends the ULTW header data once every 5 minutes, and the Data Logger data format is sent out about 90 times per minute. This gets a better sample on the 5 minute boundry that I will be transmitting at via APRS. Plus I could increase the transmit time to a lower value if desired.
So here we go with the !! data format, it’s a little different than the $ULTW format, but it’s still 4 byte fields formated in hex. In a perfect world, WD would decode the $ULTW format or the !! format. It’s just more work for you and I understand your constraints.
Header = !! (from http://www.peetbros.com/HTML_Pages/faqs.htm#Q5)
Data Fields
- Wind Speed (0.1 kph)
- Wind Direction (0-255)
- Outdoor Temp (0.1 deg F)
- Rain* Long Term Total (0.01 inches)
- Barometer (0.1 mbar)
- Indoor Temp (0.1 deg F)
- Outdoor Humidity (0.1%)
- Indoor Humidity (0.1%)
- Date (day of year)
- Time (minute of day)
- Today’s Rain Total (0.01 inches)*
- 1 Minute Wind Speed Average (0.1kph)*
Carriage Return & Line Feed
*Some instruments may not include field 12, some may not include 11 or 12. Please contact Peet Bros. if this presents any problem.
Total size: 40, 44 or 48 characters (hex digits) + header, carriage return and line feed.
Here is data from my APRS station using the !! format… make sure and scroll to the bottom of the page to see the !! data: http://www.findu.com/cgi-bin/rawwx.cgi?call=ke7cxv
Do you think it’s a possibility to handle both formats?
mg NG7M