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5
Streaming Data Logger Functionality &
Troubleshooting
The APRS streaming data logger compiles a character string consisting of the
following:
ASCII character "@",
The date and time on a 24 hour clock in the following format: Day of Month, Hour,
Minute, where each value is a 2 digit number.
Lower case "z",
Latitude/longitude "position" string: 4903.50N/07201.75W_.
Vector average wind direction (in degrees) over 2 minutes (reported as 000 if the
average wind speed is zero);
Forward slash "/",
Sustained one-minute wind speed (in mph);
Lower case "g",
Gust (peak wind speed in mph in the last 10 minutes);
Lower case "t",
Temperature (in degrees Fahrenheit). Temperatures below zero are expressed as
-01 to -99;
Lower case "r",
Rainfall (in hundredths of an inch) in the last hour,
Lower case "p",
Rainfall (in hundredths of an inch) in the last 24 hours,
Upper case "P",
Rainfall (in hundredths of an inch) since midnight,
Lower case "h",
Humidity (in %. 00 = 100%);
Lower case "b",
Barometric pressure (Altimeter Settings in tenths of millibars/tenths of hPa);
The letter "L", (upper case if solar radiation is below 1000, lower case if solar
radiation is between 1000 and 1999), omitted if missing,
Solar Radiation (in watts per square meter) last 3 digits (see above), omitted if
missing,
The following character string inside the quotes (including the leading period):
".DsVP". This will indicate that a Davis Vantage Pro2 is sending the APRS data
packet with its own proprietary device.
Carriage Return character
Line Feed character
Upon powering up the console, the data logger will report rain over the last hour
and the last 24 hour rain initially as zero if the storm rain and daily rain is zero,
otherwise it will report those values as missing for the first hour and first 24 hours,
respectively. Also, if data is missing due to other problems such as disconnected
sensors or poor reception, data may not be reported.
Hourly and last 24 hour rain will resume reporting totals normally after the data
logger streaming function is interrupted for PC communication