MLH 6/2-BZ

Dual-frequency Mobile Antenna for the 6 m and 2 m Amateur Bands

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MLH 6/2-BZ

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MLH 6/2-BZ
Electrical
Model MLH 6/2-BZ
Frequency 50 – 52 MHz (6 m amateur band)
144 – 146 MHz (2 m amateur band) – no tuning required
Antenna Type Mobile whip antenna :
Shortened ¼ λ at 6 m, ⅝ λ at 2 m
Max. Input Power 150 W
Polarisation Vertical
Impedance 50 Ω
VSWR < 2.0 @ f.res. at 6 m
< 1.3 @ f.res. at 2 m
Gain (EIA RS-329-1) Equal to shortened ¼ λ at 6 m. Approx. 3 dB at 2 m
Mechanical
Materials Whip : Conical glass fiber or stainless steel
Black chromed brass
Spring : Black stainless steel
Mount : Black-chromed brass
Weather- and shockproof plastics
Stainless steel
Installation Torque 7.5 ±1 Nm
Colour Black
Historic Brand Amphenol Procom
Antenna Mount Type Hole Mount
Height Approx. 1300 mm / 51.18 in.
Weight BZ-version : Approx. 350 g / 0.77 lb.
BZP4-version : Approx. 500 g / 1.10 lb.
Mounting 21mm dia. hole (For roof thickness 2 mm up to 7.5 mm mounting hole should be 22mm dia.)
Mounting Plate Thickness 2 mm / 0.08 in.
  • Dual-frequency antenna for the 6 m and the 2 m bands (see note).
  • Covers 50 – 52 MHz and 144 – 146 MHz – no tuning required.
  • Shortened ¼ λ antenna at 6 m.
  • ⅝ λ antenna at 2 m – approx. 3 dB gain.
  • Choice between glass fiber and stainless steel whip.
  • Stainless steel BZ-mount with ball-joint and wing screw.
  • Easy mounting from the outside only. 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.
  • Sturdy mobile antenna of high quality.

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Model Product No. FrequencyAdditional Information Add To Quote

MLH 6/2-BZ

 130000659 BZ-mount with FME-system Glassfibre Whip

MLH 6/2-BZP4

 130000662 BZP4-mount with 4 m cable + FME-connector Glassfibre Whip

MLH 6/2-BZR

 130000660 BZ-mount with FME-system Stainless Steel Whip

MLH 6/2-BZP4R

 130000661 BZP4-mount with 4 m cable + FME-connector Stainless Steel Whip

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The whip is compatible with all below mounts

Installation

This antenna is provided with type BZ-mount. The whip is fastened to the mount by means of our standard ball-joint and wing screw system. The adjustable ball-joint ensures that the whip can always be mounted in a vertical position independent of the angle of the installation spot.

The BZ-mount is particularly well suited for mounting on car-roofs because of its ability to be installed exclusively with access from the outside. The BZ-Mount for roof thickness from 2 mm to 7.5 mm must be mounted from the inside. However, the antenna can be installed anywhere on the car, as the BZ-mount is equally well suited for mounting on e.g. trunk or wing.

1. Installation Dimension

2. Installation Steps

Do not use sealer on rubber gasket or other places.

3. Tuning

The antenna is delivered factory-tuned and requires no further tuning.

4. Operation using a Diplexer

This antenna makes it possible to operate two transceivers at the same time. In this case, a diplexer type DIPX 88/136 is neccessary to complete the system ( see the coupling diagram below). 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 88/136. The diplexer fully covers both bands and, consequently, tuning to specific frequencies is not required.

Connection Diagram

Please Note

A diplexer type DIPX 88/136 can be used, when operating two transceivers at the same time.