Vaisala RVP900 - Page 264

Parameter Description 8-bit Format 16-bit Format
LDR
Selects Linear
Depolarization
Ratio, measured
either on the
horizontal receive
channel while
transmitting
vertically, or on the
vertical receive
channel while
transmitting
horizontally.
The level in decibels is computed
from the unsigned byte N as:
dB = -45.0 + (N-1) / 5
This spans an asymmetric interval
around zero decibels, and allows
for cross channel isolation as large
as 45 dB. The range is from
-45.0 ... dB in 0.2 dB steps as
follows:
0
Indicates no LDR data
available at this range
1
-45.0 dB
226
0.0 dB
254
+5.6 dB
255
Reserved Code
Same as 16-bit decibel format for
Z.
RHO
Selects Signal
Quality Index data
This dimensionless parameter uses the same 8-bit and 16-bit data
formats as RHV.
PHI
Selects the cross
channel dierential
phase.
This parameter uses the same 8-bit and 16-bit angular data formats as
PDP.
FLG
Selects flag word
output.
Bits defined as follows:
0
Reflectivity obscured at this bin
1
Velocity obscured at this bin
2
Width obscured at this bin
3
Point clutter detected at this bin
RVP900 User Guide M211322EN-J
262