one should receive the following answer:
#2,0,c-27.89,f-13.44,g172800,h172800,i172800,j172800;
Note: All bytes of that transmission are ASCII characters.
A.4. FUNCTION #3 – READ-OUT OF THE MEASUREMENT RESULTS IN 1/1 OCTAVE AND
1/3 OCTAVE MODE
Function #3 enables one to read out the current measurement data in 1/1 OCTAVE, 1/3 OCTAVE and FFT.
#3 function format is defined as follows:
#3,t,n;
n – the number of channel (1, 2, 3, or 4)
t - result timestep code. Can be one of:
l logger step
c 1s
If no code is provided, current measurement time is assumed
The device will respond, sending the last measured spectrum (when in STOP state) or currently measured
spectrum (in RUN state) in the following format:
#3,n;<Status Byte> <LSB of the transmission counter> <MSB of the transmission counter> <data byte>
(...) <data byte>
Status Byte gives the information about the current state of the instrument.
where:
D7 = 1 denotes "overload indicator",
D6 = 1 denotes "averaged spectrum",
D5 = 0 the instantaneous current result (RUN State),
= 1 the final result (STOP State),
D0 to D4 reserved bits.
Note: The measurement result is coded in binary form as dB•100 (e.g. 34.5 dB is sent as binary
number 3450).
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