Operating Manual 1302.6163.12 - 03 4.59
R&S ESU Instrument Functions
Receiver Mode
Meas Time - Entry of measurement time
The measurement time can be set between 100 µs and 100 s separately for each
subrange. In the case of quasipeak weighting, the minimum is 1 ms. The measure-
ment time can be set independently for each scan range.
With option ESU-K53 (Time Domain Scan) the measurement time range depends
on the selected resolution bandwidth.
Remote command: SCAN1:TIME 1ms
Auto Ranging - Activates the autorange function
Remote command: SCAN1:INP:ATT:AUTO OFF
RF Atten - Entry of a fixed RF attenuation
The RF attenuation can be set separately for each subrange.
Remote command: SCAN1:INP:ATT 10dB
Resolution
Bandwidth
Minimum
Measurement Time
Maximum
Measurement Time
10 Hz ... 50 Hz 10 ms 100 s
100 Hz ... 500 Hz 1 ms 100 s
1 kHz ... 30 kHz 100
µs 100 s
50 kHz 100
µs 50 s
100 kHz ...120 kHz 10
µs 30 s
200 kHz 10
µs 16 s
300 kHz 10
µs 10 s
500 kHz 10
µs 6 s
1 MHz 10
µs 3 s
If 0 dB RF attenuation is used with autoranging, care must be taken that the per-
missible signal level at the RF input is not exceeded.
Exceeding this level would damage the input mixer.
The 0 dB attenuation should under no circumstances be used when RFI voltage
measurements are performed with the aid of artificial networks as in this case very
high pulses occur during phase switching.
ON R&S ESU automatically sets the input attenuation as a function of
the signal level.
OFF The input attenuation setting of the scan table is used.
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