BIRD THRULINE 4027F series Instruction Book

11
Chapter 3 Operating Instructions
This chapter describes operator controls and indicators on the Bird 4421 RF
Power Meter. For remote operation using a GPIB or RS-232 controller, refer to
the instructions in Chapter 4 or Chapter 5 respectively.
Push Button Functions
Figure 7
Push Buttons
LISTEN TALK LOCAL LOCKOUT
FWD
AUTO
LO BAT
REMOTE
MODEL 4421 RF POWER METER
AUTO
RANGE
UP
DOWN
SWR RFLFWD MIN MAX dBm LIGHT ON / OFF
MW nW
KW µW
W mW
dBm
FWD
RFL
SWR
Push Button Description
FWD, RFL Press to measure forward or reflected RF power. FWD or
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
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. This switch will
not work if the master power switch on the rear panel is
OFF.
The display flashes for about 30 seconds when the unit is
first turned on.

BIRD THRULINE 4027F series Specifications

General

Brand	BIRD
Model	THRULINE 4027F series
Category	Measuring Instruments
Language	English