Com-power AM-741 User Manual download pdf

Active Monopole Antenna

Features

Range - 9 kHz - 30 MHz

Built in Amplier

Battery Powered

Individual Calibration

Application

The 41 inch Monopole antenna is required for mak-

ing electric eld emission measurements below 30

MHz per Military standards (MIL-STD-461) and FAA

(DO-160) specications. This antenna is for emissions

measurements only. It cannot be used for transmitting.

The Active Monopole antenna is generally used in a

shielded room or in a screen room, with the equipment

under test (EUT) placed on a metal ground plane. The

41 inch rod and the ground plane behave electrically as

though a mirror image of the rod were located below the

ground, and the ground removed. Since the stainless

steel plate does not have enough surface area to mirror

the entire 41 inch rod, it is bonded to the surrounding

ground plane during use.

The AM-741 is battery powered to prevent measure-

ment errors that maybe caused by external power cables.

The ANSI equivelant capacitance subsitution (ECSM)

method is the recommended method for calibrating

AM-741 monopole antenna. The individual calibration

data will be included with each antenna.

Description

The Active Monopole antenna Model AM-741 was

designed to measure electric eld strength in the fre-

quency range from 9 kHz to 30 MHz. This antenna

includes a built-in broadband amplier covering the

frequency range of operation. The built in preampli-

er improves the sensitivity of the antenna and also

provides a 50 Ω matched output.

The antenna amplier is enclosed in an aluminum

enclosure. The 41 inch collapsible rod element is

connected to BNC connector located on the top the

amplier enclosure. The amplier enclosure is mounted

on the bottom of a 60 x 60 cm stainless steel plate.

The front panel of the AM-741 Monopole antenna has

battery status and saturation indicators. The saturation

indicator will illuminate if the if the eld measured is

saturating the built in preamplier.

The antenna can be used for 6-8 hours continious with

a fully charged battery. An external charger addapter

is included with each antenna.

The antenna has 1/4 inch x 20 threaded hole which al-

lows the AM-741 to be mounted on an antenna tripod

with matching threads. The manual and certicate of

calibration will be shipped with each unit.

AM-741

Com-Power Corporation (714) 528 - 8800 www. com-power.com sales@com-power.com

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Summary of Contents

Page 1 - Description

Active Monopole AntennaFeaturesRange - 9 kHz - 30 MHzBuilt in Amplier Battery PoweredIndividual CalibrationApplication The 41 inch Monopole anten

Page 2 - Specications

All values are typical values unless specied.Specications are subject to change without notice.SpecicationsTypical AM-741 Characteristics using ANS

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Com-power AM-741 User Manual

Browse online or download User Manual for Accessories communication Com-power AM-741. Com-Power AM-741 User Manual

Summary of Contents

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