Upper Power Limit And Resolution; How To Set The Averaging Time - HP 8163A User Manual

[R ]
ANGE
10 dBm 19.999 mW
0 dBm 1.9999 mW
−10 dBm 199.99 µW
−20 dBm 19.999 µW
−30 dBm 1.9999 µW
−40 dBm
199.99 nW
−50 dBm
19.999 nW
−60 dBm
1.9999 nW
−70 dBm
199.99 pW
Table 3-1
Power Measurement
How to Measure Power

Upper Power Limit and Resolution

Table 3-1 shows the upper power limit and measurent resolution at
various power ranges. As can be seen the resolution decreases as
the chosen [R
ANGE
than the chosen [R
3 dBm greater than the chosen [Range] value.
Upper Power Limit
13.000 dBm
3.000 dBm
−7.000 dBm
−17.000 dBm
−27.000 dBm
−37.000 dBm
−47.000 dBm
−57.000 dBm
−67.000 dBm
Upper Power Limits and Resolution for Various Power Ranges

How to Set the Averaging Time

This is the length of time over which a signal is averaged. Longer
averaging times increase the accuracy and improve the noise
rejection. Longer averaging times also decrease sensitivity.
For averaging times of 1 second or less, a new measurement is
shown at the end of each averaging time. This is drawn in
Figure 3-1. A new measurement is shown on the display at each x.
80
] decreases. Resolution is always 40 dBm less
] value. The Upper Power Limit is always
ANGE
0.001 mW
0.1 µW
0.01 µW
0.001 µW
0.1 nw
0.01 nw
0.001 nw
0.1 pW
0.01 pW
Resolution
−30.000 dBm
−40.000 dBm
−50.000 dBm
−60.000 dBm
−70.000 dBm
−80.000 dBm
−90.000 dBm
−100.000 dBm
−110.000 dBm