700-SDI-RADAR-300W-Man Rev 2 30 May 2022
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Part# 21370
5.2.3
MEASUREMENT
Velocity Unit:
The measurement unit used to report the measured velocity value. For
NMEA protocol which is used over RS-232 connection, the velocity is reported as an
integer value. To preserve higher precision with integer numbers, the measured
velocity will be multiplied by 10 for m/s, km/h, mph, fps and fpm when being
transferred over RS-232. When mm/s and cm/s units are used, the measured values
will not be multiplied by 10. This application internally handles the multiplication
factor which is used over RS-232 protocol, and it displays the correct values to the
user.
PGA Sensitivity:
This parameter limits the maximum gain (amplification level) of the
internal programable gain amplifier. It is strongly recommended to use the default
value 9, which allows the internal signal amplifier to use the maximum gain when the
reflected radar signal is very low. Setting this value to a lower value is used only
when the instrument is mounted very close to the water surface, typically less than 1
meter, and in that case this parameter should be set to a value 4 or 5.
Velocity min.:
This parameter is used for setting up the minimum velocity value of
interest.
Velocity max.:
This parameter is used for setting up the maximum velocity value of
interest.
