R&S PR100 User Manual
Table 35: IF Data Types
Terminal C Data Type Remarks
<IF mode> short Always 1
<IF frame length> short Number of bytes for each IQ
sample-pair: always 4.
<IF sample rate> long Sampling rate in samples/s
<IF frequency low> unsigned long Lower 32 bits of output of
“SENS:FREQ:CW?” in Hz
<IF bandwidth> unsigned long Output of “SENS:BAND:RES?”
in Hz
<IF demodulation id> unsigned
short
Output of SENS:DEM? acc. to
Table 24 (Identifier column)
<IF RX attenuation> short Always 0
<IF flags> short Validity flags: 0 during
instrument settling, 1
otherwise
<IF reserved> char[2] reserved for 64-bit alignment
<IF demodulation
mode>
char[8] See column “Demodulation-
Mode” in Table 24.
<IF sample count> long long Sequence number of first
sample in packet
<IF frequency high> unsigned long Higher 32 bits of output of
“SENS:FREQ:CW?” in Hz
12.8 PSCAN
A PSCAN in consists of several FFT measurements in a row. Each FFT
consists of x samples, where x depends on the “RF Panorama Scan
Resolution BW. Max x = 3199 and Min x = 99 samples, with 16 bit per sample.
The applicable selector flags (see Table 20) are “LEVEL”, “FREQ_LOW”,
“FREQ_HIGH”, “SWAP” and “OPTIONAL_HEADER”.
Data are output when PSCAN is running. Note that each packet contains one
single FFT. The Scan contains several FFT’s
Table 36: PScan Format: <optional header> and <trace data>
32-bit aligned 8-bit aligned 16-bit aligned 8-bit aligned
PSCAN start frequency low (4 bytes)
PSCAN stop frequency low (4 bytes)
PSCAN step frequency (4 bytes)
PSCAN start frequency high (4 bytes)
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