Selects the attenuator mode, when the RF signal is switched off.
The setting of the RF OFF mode is not affected by an instrument preset (PRESET key), *RST and the "Save/Recall" function. This parameter is influenced only by the Factory Preset.
Parameters: | ||||
<Mode> | UNCHanged Freezes the setting of the attenuator when RF is switched off. The attenuator is only activated when RF is switched on. This setting recommended if a constant VSWR (Voltage Standing Wave Ratio) is required. Furthermore, it provides fast and wear-free operation of the relay-switched high power bypass. Furthermore, on instruments equipped with a high power option, it provides fast and wear-free operation of the relay-switched high power bypass. FATTenuationSets attenuation to maximum when the RF signal is switched off. This setting is recommended for applications that require a high level of noise suppression.
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Example: | SOUR:POW:ATT:RFOF:MODE FATT sets the RF OFF attenuator to maximum. | |||
Manual operation: | See "RF OFF Mode" |
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