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Field Offset Size Explanation
UV_ALARM 65 1 The UV alarm is stored in 1 unsigned byte in the units of .1
index. A value of 255 indicats no alarm is set.
UV_DOSE_ALARM 66 1 The UV exposure alarm threshold is stored in the
UV_DOSE_A_X location. However, this is an internal alarm
that must be set throught he console.
LOW_SOIL_ALARM 67 4 The soil moisture alarm is stored in 1 byte unsigned values
with resolution of 1 cb. A value of 255 indicates the alarm is
not set. There are four bytes for the soil alarm, one for each of
the four sensors.
HIGH_SOIL_ALARM 71 4 The soil moisture alarm is stored in 1 byte unsigned values
with resolution of 1 cb. A value of 255 indicates the alarm is
not set. There are four bytes for the soil alarm, one for each of
the four sensors.
LOW_LEAF_ALARM 75 4 The leaf wetness alarm is stored in 1 byte unsigned value.
Leaf wetness ranges from 0 to 15. A value of 255 indicates
the alarm is not set. There are four bytes for the leaf alarm,
one for each of the four sensors.
HIGH_LEAF_ALARM 79 4 The leaf wetness alarm is stored in 1 byte unsigned value.
Leaf wetness ranges from 0 to 15. A value of 255 indicates
the alarm is not set. There are four bytes for the leaf alarm, one
for each of the four sensors.
SOLAR_ALARM 83 2 The solar radiation alarm is a 2 byte value stored in 1 W/m^2
resolution. Valid range is from 0 to 1800. A value of 0xffff
(65535) indicates the alarm is not set.
RAIN_RATE_ALARM 85 2 The rain rate alarm is a 2 byte value stored in units of .01 inch.
A value of 0xffff (65535) indicates the alarm is not set.
RAIN_15MIN_ALARM 87 2 The rain total alarm is stored in 2 bytes in the resolution of .01
inches. A value of 0xffff (65535) means no alarm is set.
RAIN_24HR_ALARM 89 2 The rain total alarm is stored in 2 bytes in the resolution of .01
inches. A value of 0xffff (65535) means no alarm is set.
RAIN_STORM_ALARM 91 2 The rain total alarm is stored in 2 bytes in the resolution of .01
inches. A value of 0xffff (65535) means no alarm is set.
ET_DAY_ALARM 93 1 The ET day alarm is stored in 1 unsigned byte in the resolution
of .01 inches. A value of 255 means no alarm is set.
6. Calculating ISS reception
The "Number of Wind Samples" field in the archive record can tell you the quality of radio
communication between the ISS (or wireless anemometer) and the console because wind speed
data is send in almost all data packets. In order to use this, you need to know how many packets
you could have gotten if you had 100 % reception. This is a function of both the archive interval
and the transmitter ID that is sending wind speed. The formula for Vantage Pro2 console is
different from the one for Vantage Pro console.
The formulas for determining the expected maximum number of packets containing wind speed
are:
25.1*)1(0.50
60*
0.16
1
5.2
60*
−+
−
−
+
ID
terval_minarchive_in
ID
terval_minarchive_in
(for Vantage Pro)
or
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