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The RL command specifies the amplitude value of the top CRT graticule line, which is called the reference level.
The reference level can be specified from - 89.9 dBm to + 30 dBm with 0.1 dB resolution.
The reference level and input attenuator are coupled to prevent gain compression. Any signals with peaks at or
below the reference level are not affected by gain compression.
The reference level range can be extended from - 129.9 dBm to +60 dBm with the KS1 command. When the
reference level range is extended, and the mixer level commands, KS1 or ML, are used to change the threshold of
the mixer input to values greater than - 10 dBm, signals on the spectrum analyzer screen may be affected by gain
compression. (See AT and ML.)
The functions of the RL command and the [ Z" ) key are identical.
Reference Level
P r o g r a m m i n g 3 0 3
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