Chapter 4
Front-Panel Key and SCPI Command Reference
Measurement keys
175
Front-Panel Key and SCPI Command
Reference
4.4.1.2.5 RBW
Selects the Resolution Bandwidth.
4.4.1.2.6 Threshold
Sets the threshold above which the frequency is counted. Four bands are swept to identify the valid signal. Refer
to Table 4-6. The 10 kHz to 100 kHz band is the reference band for the threshold setting.
For example, if you want a search threshold of –60 dBm at 1 GHz, set the threshold value
to –68 dBm (–60 dBm – 8 dB).
When the Threshold state is set to Auto, the default threshold is –57.00 dBm.
Preset: REP
State Saved: Saved in instrument state.
Range: Repeat | Exponential
Example: :FCO:AVER:TYPE EXP
:FCO:AVER:TYPE?
Mode: MRECEIVE
Key Path:
Meas Setup
Remote Command: [:SENSe]:FCOunter:RBW <freq>
[:SENSe]:FCOunter:RBW?
Unit: Hz | kHz | MHz
Preset: 1 kHz
State Saved: Saved in instrument state.
Min: 1.0 Hz
Max: 3.0 MHz
Example: :FCO:RBW 100 Hz
:FCO:RBW?
Table 4-6 Search Threshold
Band Default/Auto Offset from 10 kHz–100 kHz Band
10 kHz – 100 kHz
–57.00 dBm
N/A
100 kHz – 3 GHz
–49.00 dBm
+8 dB
3 GHz – 26.5 GHz
–59.00 dBm
–2 dB
26.5 GHz – 50 GHz
–69.00 dBm
–12 dB
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