Heavy-duty high gain UHF CB radio detachable antenna, 477 MHz, black, 100W, UHF male PL259, 5m cable, 8.1 dBi – 2.1m
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Heavy-duty high gain UHF CB radio detachable antenna, 477 MHz, black, 100W, UHF male PL259, 5m cable, 8.1 dBi - 2.1m

Product code: ZN3-77-12B

Manufactured in Australia, the ZN3-77-12B is a high-performance high gain UHF CB radio antenna engineered for maximum communication range across the 477 MHz UHF CB band, making it ideal for long-distance transmission over flat and open terrain. Designed to deliver superior signal reach, this antenna features a powerful 8.1 dBi gain, providing extended transmit and receive capability where line-of-sight conditions are optimal.

Built as a heavy-duty fibreglass detachable antenna, the ZN3-77-12B is designed to withstand demanding and extreme conditions while offering practical flexibility for mobile users. Its detachable whip design allows the radiating element to be easily removed when not in use or in situations where clearance limitations, impact risk, or vandalism may be a concern. This makes it well suited to transport fleets, off-road vehicles, agricultural operations, and remote area communications where both performance and protection are essential.

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Frequency

477 MHz - UHF CB radio

Bandwidth

476.4125 - 477.4125 MHz - all 40/80 channels

Gain

8.1 dBi - suits flat terrain or high gain requirements

Tuning

Factory at 1.5:1 VSWR

Impedance

50 Ohms

H Plane beamwidth

360° omnidirectional ± 0.5 dBd

Maximum Power

100 Watts

Polarisation

Vertical

Construction

Black tapered HD fibreglass radome, clear anodised aluminium ferrule, HD stainless steel spring, 5m RG58 cable, connector and adaptor

Connector

FME female fitted to cable for ease of installation, FME male to UHF male PL259 adaptor supplied for coax to radio connection

Dimensions

Height overall: 2.1m, Mount hole requirement: 13mm, External cable: 5 metres

Weight - kg

1.72

Working Temperatures

-15°~+65°C

Why Choose ZCG?

Australian Owned & Manufactured, High Quality RF Solutions Since 1970

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