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Whip AntennasCT 30-ZP4

Short Centre-loaded Mobile Antenna for the 30 MHz Band

Description

Short antenna with attractive appearance ideal for mounting on the car roof.
High efficiency in spite of low height due to high-Q centre-loading coil and matching unit built into mount.
Stainless steel ZP4-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.
Delivered with 4 m cable permanently attached to the mount and terminated with FME-connector.

Specifications

Electrical

Model

CT 30-ZP4

Frequency

30 MHz

Antenna Type

Centre-loaded mobile antenna

Max. Input Power

200 W

Polarisation

Vertical

Impedance

50 Ω

VSWR

< 1.3:1

Bandwidth

≥ 350 kHz @ VSWR ≤ 1.5

Mechanical

Materials

Whip : Stainless steel, Nylon,
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

Height

Approx. 680 mm / 26.77 in.

Weight

Approx. 0.49 kg / 1.08 lb.

Mounting

21 mm / 0.83 in. dia. hole (For roof thicknesses 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. 2.0 mm (Models up to 7.5 mm on request)

Ordering Designations

Model	Product No.
CT 30-ZP4	130000601

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 car-roofs because of its ability to 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

The antenna should always be post-adjusted using an SWR-meter, especially if mounted near metal parts parallel to the whip.
Loosen the union nut at the top of the coil and pull out the whip approx. 5 mm at a time until best possible VSWR is obtained.
Fasten the union nut thoroughly.

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.

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Whip AntennasCT 30-ZP4

Description

Specifications