ML 3-ZP4

Helical Mobile Antenna for the 80 MHz Band

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ML 3-ZP4
Electrical
Model ML 3-ZP4
Frequency Tunable by cutting within: 66….88 MHz
Antenna Type Shortened ¼ λ helical antenna
Max. Input Power 30 W
Polarisation Vertical
Impedance 50 Ω
VSWR ≤ 2.5 @ fc ±0.5 MHz
Gain (EIA RS-329-1) -3 dB
Mechanical
Materials Whip: Steel helix moulded in flexible thermoplastic rubber
Chromed brass
Mount: Chromed brass
Weather- and shockproof plastics
Stainless steel
Cable 4 m RG 58
Installation Torque 7.5 ±1 Nm
Colour Black / Metallic Silver
Historic Brand Amphenol Procom
Antenna Mount Type Hole Mount
Height Approx. 390 mm / 15.35 in.
Weight Approx. 0.4 kg / 0.88 lb.
Mounting 21 mm / 0.83 in. dia. hole
(For roof thickness 2 mm / 0.08 in. up to
7.5 mm / 0.30 in. mounting hole
should be 22 mm / 0.87 in. dia.)
Mounting Plate Thickness Max. 2 mm / 0.08 in.
(Models up to 7.5 mm / 0.3 in. on request)
  • Reduced-size quarter-wave antenna for all applicatons where height is a problem.
  • Ideal on busses, trucks, building-site machines, forestry vehicles etc.
  • High efficiency due to the “continuous loading” helical principle.
  • Stainless steel ZP4-mount with ball-joint and wing screw whip-fastening system.
  • Simple mounting exclusively with access from the outside.
  • Models for roof thickness from 2 mm to 7.5 mm with mounting from the inside.
  • Delivered with 4 m cable permanently attached to the mount and terminated with FME-connector.

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Model Product No. Add To Quote
Helical Mobile Antenna for the 80 MHz Band 130000655

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The whip is compatible with all below mounts

Please note that the ML 3-type ZP4-mount is provided with a built-in matching unit. Consequently, the mount cannot be used together with other whips.

Installation

This antenna is supplied with type ZP4-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 ZP4-mount is particularly well suited for mounting on carroofs as it can be installed exclusively with access from the outside. The ZP4-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 ZP4-mount is equally well suited for mounting on e.g. trunk or wing.

1. INSTALLATION DIMENSIONS

2. Installation steps

Do not use sealer on rubber gasket or other places.

3. Tuning

PLEASE NOTE

To make this antenna operate as efficiently as possible, a matching unit has been built into the antenna mount. Consequently, neither mount nor whip can be used together with other mounts/whips.