Furuno WR2120 Operator's Manual page 33

Invalidity MP Noise data:
This is the function to invalid Zdr, ρhv, φdp, Kdp when Zh is under A cutback value. Invalid the
noise of Multiple Parameter by ON/OFF switch.
Zh
Invalid MP Noise "ON"
Note:
Default value: Z = 200 R ^ 1.6 refers to Marshall-Palmer relation.
Please refer to the CIMO Guide to change the coefficient, please be aware of the possibility that
rainfall error may increase.
(RM: Marshall, J. S., and W. McK. Palmer, 1948: The distribution of raindrops with size. J. Meteor., 5,
165–166.)
Zdr
Invalid MP Noise "ON"
φ
dp
23
Zdr
Invalid MP Noise "OFF"
φ
dp
Invalid MP Noise "OFF"