Keysight 53210A - Measuring Input Signal Levels and Signal Strength

53210A Input Signal Conditioning 4
Keysight 53210A User’s Guide 121
Measuring Input Signal Levels and Signal Strength
Minimum, maximum, and peak-to-peak levels of the input signal are indicated on
the bottom of the counter’s main measurement display area and an example is
included in Figure 4-4. These characteristics of the peak-to-peak signal can also
be measured with the commands:
INPut[1]:LEVel:MINimum? (minimum value of p-p signal)
INPut[1]:LEVel:MAXimum? (maximum value of p-p signal)
INPut[1]:LEVel:PTPeak? (p-p amplitude)
The minimum and maximum values include any DC levels (offsets) present with
the signals. The counter’s input impedance also affects the amplitude at the input.
Channel 2 Signal Strength
The relative signal strength on channel 2 Option 106 or 115 (6 GHz or 15 GHz
microwave input) is dislayed on the counter and can also be measured with the
command:
INPut2:STRength?
The relative strengths returned by the command indicate the following:
Strength Description
0
1
2,3
4
Signal strength too low. May not be able to make measurement. Signal power must
be >
-27 dBm.
Signal strength weak, but acceptable.
Good signal.
Signal may have exceeded level at which an accurate measurement can be made
(> +19 dBm). Signal levels >
+27 dBm may damage the instrument.