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Omnidirectional 27MHz marine deck mount antenna, 27.68-27.98 MHz, 25W, UHF male PL259, 4.5m cable, 2.1 dBi - 2.1m

The ZM21-27 omnidirectional marine 27MHz deck mount antenna, is suitable for 27MHz communications whilst at sea. The ZM21-27 marine 27MHz antenna is tuned for maximum performance for the Distress, Urgency and Safety Calling 27.86 MHz and 27.88 MHz frequency allocations. The ZM21-27 marine HF antenna requires either a MM1 white nylon fold down base, MM2 stainless steel fold down base or alternatively you can mast mount the ZM21-27 HF marine antenna utilising a MMA mast mount adaptor with 2 x EB1-SS parallel mount clamps. ZCG recommend waterproofing your terminations utilising two layers of amalgamation butyl rubber and a single external layer of uPVC tape to ensure no water ingression into your connector joints. The ZM21-27 27MHz marine antenna should be orientated in a vertical polarisation whilst in use and completely laid flat whilst the vessel is being transported on a trailer to avoid contact with overhead infrastructure.

FREQUENCY

27.86-27.98 MHz - Maritime HF 27 MHz communications

BANDWIDTH

Favoured for 27.68 MHz + 27.88 MHz - Maritime Distress, Urge

GAIN

2.1 dBi

MAXIMUM POWER

25 Watts

IMPEDANCE

50 Ohms

HE PLANE

H Plane: 360° omni-directional

POLARISATION

Vertical - not leaned

CONSTRUCTION

White fibreglass radome, chrome mount ferrule and 4.5m white RG58

CONNECTOR

UHF male PL259 connector supplied, not fitted

TUNING

Factory at 1.5:1 VSWR at 27.86 MHz + 27.88 MHz

DIMENSIONS

Height: 2.1m, Mount thread: 1-1/4" UNS female

WEIGHT

1.0kg

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