Agilent Technologies 53220A - Page 141

53220A/53230A User’s Guide 141
53220A/53230A Input Signal Conditioning 4
The relative signal strength on channel 3 Option 106 or 115 (6 GHz or 15 GHz
microwave input) is dislayed on the counter and can also be measured with
the command:
INPut3:STRength?
The colors and the relative strengths returned by the command indicate the
following:
Color Strength
Description
None
Yellow
Green
Red
0
1
2,3
4
Signal strength too low. May not be able to make measurement.
For continuous wave (CW) measurements signal power must be
>
-27 dBm. For pulse measurements signal power must be
>
-13 dBm.
Signal strength weak, but acceptable.
Good signal.
Signal may have exceeded level at which an accurate measure-
ment can be made (> +19 dBm CW, > +13 dBm pulse). Signal
levels >
+27 dBm may damage the instrument.