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Vaisala RVP900 - Page 248

Vaisala RVP900
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15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
---------------------------------------------------------------
| | | | | | | | | | | | | | | | |
| Threshold Control Flags for Velocity | Input 13
|---------------------------------------------------------------|
See description for Input 11.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
---------------------------------------------------------------
| | | | | | | | | | | | | | | | |
| Threshold Control Flags for Width | Input 14
|---------------------------------------------------------------|
See description for Input 11.
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
---------------------------------------------------------------
| | | | | | | | | | | | | | | | |
| Additive Offset for Measured AZ Angles (Binary Angle) | Input 15
|---------------------------------------------------------------|
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
---------------------------------------------------------------
| | | | | | | | | | | | | | | | |
| Additive Offset for Measured EL Angles (Binary Angle) | Input 16
|---------------------------------------------------------------|
15 14 13 12 11 10 9 8 7 6 5 4 3 2 1 0
---------------------------------------------------------------
| | | | | | | | | | | | | | | | |
| Intervening Gas Attenuation Correction (dB/km) | Input 17
|---------------------------------------------------------------|
Gas attenuation correction attempts to compensate for overall (two-way) beam losses due
to absorption by atmospheric gases. The correction is linear with range, and is added to the
data along with range normalization. Therefore, clearing the RNV bit in Word #2 above
disables the correction. Gas attenuation compensation can be turned o when RNV is on by
setting a slope of 0.0 dB/km.
An attenuation of G db/km is encoded into the unsigned 16-bit word N as follows:
0 10000 =
100000
RVP900 User Guide M211322EN-J
246

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