Bird Technologies 4030 - Manual

921-4030 7/13/05 Page 1 of 3
Introduction
The Bird 4030 Relative Field Strength Element is used with Bird 43, 4430 or 4431 Wattmeters. It plugs into
the line section like a standard element, however applying RF power to the line section is not necessary. The
4030 is a self-contained unit that transforms a wattmeter into an ultrasensitive broad-band instrument for
checking relative RF field intensity. Its nonreactive solid state circuitry is sensitive enough to detect even low
level RF signal emission.
The primary use of the Model 4030 is tuning antennas and output stages of base or handheld transceivers. It
can also be used to adjust the output of garage door openers, radio control transmitters or other transmitting
devices with frequencies within the 1 to 1000 MHz frequency range.
Installation
The Bird 4030 is compatible with and may be used in all Bird THRULINE
®
Wattmeters with a 30 µA meter
movement and that use standard or peak type elements. If a peak-reading wattmeter is used, the wattmeter
must not be in peak mode.
Insert the 4030 in the wattmeter line section so that the text on it is upright, with the locating pins against
the steps in the socket. When fully inserted, it will not rotate.
CAUTION
No RF line connections are required for the Bird 4030.
Do not apply power to the RF section.
Instruction Sheet
Bird 4030 Relative Field
Strength Element
Do not connect
to RF line