Vaisala RVP900, User Manual, Page: 261 / 484

Parameter Description 8-bit Format 16-bit Format
W
Selects spectral
width data.
Spectral width is computed from
the unsigned byte N as:
�
�������
= �
256
The overall range is a fraction
between 1/256 to 255/256 of the
unambiguous interval. The code
of zero indicates that width data
was not available at this range.
Spectral width in meters per
second (m/s) is computed from
the unsigned word
N as:
�
�
sec
= �
100
The overall range is from 0.01 m/s
to 655.34 m/s in one cm/s steps
as follows:
0
Indicates width data is not
available at this range 1 :
0.01 m/s
65534
655.34 m/s
65535
Reserved Code
Z
Selects clutter
corrected
reflectivity data. The level in decibels is computed
from the unsigned byte
N as:
��� = � − 64
2
The overall range is therefore from
-31.5 dBZ to +95.5 dBZ in half-dB
steps as follows:
0
Indicates no reflectivity
data available at this range
1 : -31.5 dBZ
64
0.0 dBZ
128
+32.0 dBZ
255
+95.5 dBZ
The level in decibels is computed
from the unsigned word
N as:
��� = � − 32768
100
0
Indicates no reflectivity
data available at this range
1
-327.67 dBZ
32768
0.00 dBZ
65534
+327.66 dBZ
65535
Reserved Code
T
Selects total
reflectivity. Same 8-bit and 16-bit coding formats as for clutter corrected
reflectivity
Chapter 8 – Host Computer Commands
259