How To Set The Range - Keysight N774-C Series User Manual

4 User Interface Reference

How to Set the Range

84
The range setting determines the power levels that can be measured. The
setting should be high enough for the applied power, but lower settings
will provide a lower noise level for weak signals.
If you choose auto-ranging mode, this parameter can not be set. The
Range parameter returns the automatically-determined range.
If the measured power is more than 3 dB greater than the range setting,
the power cannot be measured and an overflow is indicated by the
returned power value. This means that the measured power is greater than
the Maximum Power Readback Value. You must increase the Range
value.
For more details, see the following table.
Upper Power Limit
The following table shows the upper power limit at the available power
ranges. The lowest measurable power in each range is determined by the
noise level, which depends on the range setting and the averaging time.
Range
40 dBm
30 dBm
20 dBm
10 dBm
0 dBm
-10 dBm
-20 dBm
-30 dBm
-40 dBm
-50 dBm
-60 dBm
Maximum Power Readback Value
19.999 W
1.9999 W
199.99 mW
19.999 mW
1.9999 mW
199.99 μW
19.999 μW
1.9999 μW
199.99 nW
19.999 nW
1.9999 nW
Keysight N774-C & 8162-C Series User's Guide
43.000 dBm
33.000 dBm
23.000 dBm
13.000 dBm
3.000 dBm
-7.000 dBm
-17.000 dBm
-27.000 dBm
-37.000 dBm
-47.000 dBm
-57.000 dBm