Bird Technologies SCC7 Series-Manual - Manual (Page 23)

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Chapter 4 4421 Operating Instructions
Push Button Functions
Figure 3 Push Buttons
Push Button Description
FWD, RFL Press to measure forward (reflected) RF power. FWD (RFL)
indicator and current unit of measure turn on.
SWR Press to measure standing wave ratio. SWR indicator turns on.
Value displayed will be between 1.0 and 199.9
MIN, MAX Used after pressing FWD, RFL, SWR, or dBm. Displays the
minimum (maximum) measured value of the previous function as
long as MIN (MAX) is held down.
dBm Used after pressing FWD or RFL. dBm indicator turns on. Power is
displayed in dBm units.
Used after pressing SWR. Return loss is displayed.
LIGHT Press to turn on or turn off the displays backlight. If left on, the light
automatically shuts off after 30 minutes.
AUTO Press to automatically set the scale. AUTO turns on.
UP, DOWN Press to select the next higher (lower) scale. If the scale is too high
for the power sensor, an error will be displayed.
Used while AUTO indicator is on. Stops automatic scaling. AUTO
indicator turns off.
ON/OFF Press to turn the power meter on or off.
LISTEN TALK LOCAL LOCKOUT
FWD
AUTO
LO BAT
REMOTE
MODEL 4421 RF POWER METER
AUTO
RANGE
UP
DOWN
SWR RFL FWD MIN MAX dBm LIGHT ON / OFF
MW nW
KW µW
W mW
dBm FWD
RFL
SWR