User's Manual
UM-003-A OPS243-A User Manual  8  OmniPreSense Corporation 
Speed Output Units (-A, -C Doppler only) – read or set the units for the velocity output. Units 
supported include m/s (default), cm/s, ft/s, km/hr, and miles per hour. 
Command 
Name 
R/W 
Value 
U? 
Current Velocity Units 
Read 
{"Units":"m-per-sec"} 
UC 
Centimeters per second 
Write 
{"Units":"cm-per-sec"} 
UF 
Feet per second 
Write 
{"Units":"ft-per-sec"} 
UK 
Kilometers per hour 
Write 
{"Units":"km-per-hr"} 
UM 
Meters per second 
Write 
{"Units":"m-per-sec"} 
US 
Miles per hour 
Write 
{"Units":"mph"} Calculations are based on the 
international mile (1,609.344 m per mile). 
Range Output Units (-B, -C FMCW only) – read or set the units for the range output. Units supported 
include meter (default), centimeter, feet, inch, and yards. 
Command 
Name 
R/W 
Value 
u? 
Current Range Units 
Read 
{"Units":"Value", "RangeUnit":"m"} 
{"Resolutions":"Value", 
"RangeResolution_m":0.0777} 
uM 
Meters 
Write 
{"Units":"Value", "RangeUnit":"m"} 
{"Resolutions":"Value", 
"RangeResolution_m":0.0777} 
uC 
Centimeters 
Write 
{"Units":"Value", "RangeUnit":"cm"} 
{"Resolutions":"Value", 
"RangeResolution_cm":7.7710} 
uF 
Feet 
Write 
{"Units":"Value", "RangeUnit":"ft"} 
{"Resolutions":"Value", 
"RangeResolution_ft":0.2550} 
uI 
Inch 
Write 
{"Units":"Value", "RangeUnit":"in"} 
{"Resolutions":"Value", 
"RangeResolution_in":3.0594} 
uY 
Yards 
Write 
{"Units":"Value", "RangeUnit":"yd"} 
{"Resolutions":"Value", 
"RangeResolution_yd":0.0850} 
Data Precision – set the number of digits for the data reported. 
Command 
Name 
R/W 
Value 
Fn 
Decimal Places 
Write 
Set n to the number of decimal places to be 
reported. For example, setting to F2 will 
report 2 decimal places (ex. 10.35). F0 will 
provide the integer value only. Valid values of 
n are 0-5. 
F? 
Decimal Place Setting 
Read 
Query the number of decimal places set. 










