Measurement
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When Power Sweep is selected as sweep type, Step attenuation is selected
with the start power condition and the maximum value of the Stop power
(>= Start Power) is selected with the step ATT value.
For example:
• Case of Start Power= -26 dBm
o Step ATT = 10 dB, Stop Power = -26 dBm ~ 0 dBm
• Case of Start Power = -25 dBm
o Step ATT = 0 dB, Stop Power = -25 dBm ~ + 10 dBm
• If the source power range (start/stop) is located on the two ranges,
the Step ATT is set with the latest condition as:
o After setting Start = -26 dBm, set stop = + 10 dBm, then start
is reset with - 25 dBm value.
• Available power differs according to the measurement
frequency. For example, at 0 dBm Attenuator range, the
specified maximum available power level is as follows and
reduces in proportion to inserted Attenuator range:
Frequency Power Level
300 kHz to 1 MHz +8 dBm
1MHz to 6 GHz +10 dBm
6GHz to 8 GHz +9 dBm
8GHz to 10.5 GHz +7 dBm
10.5GHz to 15 GHz +3 dBm
15 GHz to 20 GHz 0 dBm
Correcting attenuation of power level (using power slope feature)
You can use the power slope feature to correct the attenuation of a power
level so that it is simply proportional to the frequency (attenuation due to
cables and so on), which improves the accuracy of the level actually
applied to the DUT.
Turning power slope feature ON/OFF
1. Press Channel Prev/Channel Next to select the channel for which the
power slope feature will be turned OFF.
2. Press Sweep Setup key, then click Power > Slope and select the
ON/OFF setting of the power level.
Setting correction coefficient (correction amount for 1 GHz)
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