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MHU 3-BZ

Dual-Frequency Mobile Antenna for the 160 and 450 MHz

Bands

DESCRIPTION

Field-tunable dual-frequency antenna which makes it possible to:

- operate 160 and 450 MHz transceivers alternately on the same

antenna

- operate two transceivers (160 and 450 MHz) at the same time on one

antenna using a diplexer (type DIPX 225/330 – must be ordered

separately).

Only a single hole has to be drilled instead of two.

Car appearance is not destroyed by an “antenna farm”.

Ideal for covert services.

Stainless steel BZ-mount with ball-joint and wing screw whip-fastening

system.

Simple mounting exclusively with access from the outside.

Models with roof thickness from 2 mm to 7.5 mm mounting from the

inside.

Choice between two connection principles:

BZ-mount: FME-connection (supplied without cable).

BZP4-mount: Permanently attached 4 m cable terminated with FME-

connector

ORDERING DESIGNATIONS

TYPE NO. PRODUCT NO.

MHU 3-BZ 130000774

MHU 3-BZP4 130000775

SPECIFICATIONS

ELECTRICAL

MODEL MHU 3-X

ANTENNA TYPE Dual-frequency mobile antenna

FREQUENCY 160 MHz frequency within:

140 – 170 MHz

450 MHz frequency within:

400 – 480 MHz

IMPEDANCE Nom. 50 Ω

POLARIZATION Vertical

GAIN 160 MHz: 0 dB

450 MHz: 3 dB

BANDWIDTH 160 MHz: ≥ 4 MHz @ SWR ≤ 2.0

450 MHz: ≥ 24 MHz @ SWR ≤ 2.0

SWR ≤ 1.5 @ f. res.

MAX. POWER 100 W

MECHANICAL

MATERIALS Whip:

Black-chromed stainless steel and brass

Mount:

Black-chromed brass

Weather- and shockproof plastics

Stainless steel

RECOMMENDED

INSTALLATION TORQUE

4 ± 1 Nm

COLOUR Black

HEIGHT Approx. 56 cm

WEIGHT BZ-version: Approx. 170 g

BZP4-version: Approx. 320 g

MOUNTING 18 mm dia. hole

OPERATION USING A DIPLEXER

In case of operating two transceivers on one antenna at the same time, a

diplexer, type DIPX 225/330 is necessary to complete the system. The tasks

of the diplexer are to protect the two receiver inputs from being destroyed

by the transmitter in the contrary band, and to ensure a low-loss path

between the transceiver and the antenna, which is not loaded by the other

branch. For further details please see the separate data sheet on the DIPX

225/330. The diplexer fully covers both bands and, consequently, tuning to

specific frequencies is not required.

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03/12/13 2

Summary of Contents

Page 1

MHU 3-BZDual-Frequency Mobile Antenna for the 160 and 450 MHzBandsDESCRIPTIONField-tunable dual-frequency antenna which makes it possible to:- operate

Page 2 - 03/12/13

PLEASE NOTEWith this type of combination antenna only certain frequenciesfrom thesegments140 - 170 MHz and 400 - 480 MHz can be covered at the same ti

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Procom MHU 3-BZ User Manual

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