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Use the [Up] and [Down] keys to highlight the option. 
Use the [Tab] key to select the parameter for each unit 
of measurement.
Distance: Feet or Meters. This affects all distances 
displayed in the 965DSP. 
Degrees: Fahrenheit or Centigrade. This affects all 
temperatures used in the 965DSP.
Filter: C-Message or CCITT
. This affects the filter 
used in the Noise function. Use the C-Message filter 
in the US and Canada. Use the CCITT (also called 
“Psophometric”) filter in all other countries.
The 965DSP also features a dBrnP filter for noise 
tests in New Zealand. To set the default noise filter to 
dBrnP, set Filter option to CCITT and Country to New 
Zealand.  This filter is used only in New Zealand; for 
all other countries, the CCITT option uses a dBrnOp 
filter. Noise test results will be displayed in dBrnP as 
shown.
Units
Use the Units setup to change the units of 
measurement for the 965DSP: