Switching Point; Table 2-5 Switching Point Hysteresis - Keysight Technologies N8480 Series Operating And Service Manual

Specifications and Characteristics 2

Switching Point

Switching point is applicable for standard N8480 Series power sensors only.
N O T E
The N8480 Series power sensors have two power measurement ranges; a
lower range and upper range. The power meter automatically selects the
proper power range. To avoid unnecessary switching when the power level
is near switching point, a Switching Point Hysteresis has been added.

Table 2-5 Switching point hysteresis

Switching point hysteresis 0.5 dB
N8481/2/5/7/8A and N8486AQ/AR power sensors
This hysteresis causes the lower range to remain selected until
approximately –0.5 dBm as the power level is increased, above this power
the upper range is selected.
The upper range remains selected until approximately –1.5 dBm as the
signal level decreases, below this power the lower range is selected.
N8481/2B power sensors
This hysteresis causes the lower range to remain selected until
approximately 29.5 dBm as the power level is increased, above this power
the upper range is selected.
The upper range remains selected until approximately 28.5 dBm as the
signal level decreases, below this power the lower range is selected.
N8481/2H power sensors
This hysteresis causes the lower range to remain selected until
approximately 17.5 dBm as the power level is increased, above this power
the upper range is selected.
The upper range remains selected until approximately 16.5 dBm as the
signal level decreases, below this power the lower range is selected.
N8480 Series Power Sensors Operating and Service Guide 35