Heavy-duty UHF CB Radio fibreglass whip, black, 477 MHz, 5/16″-26 brass thread, 20W, 6.6 dBi – 640mm
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Heavy-duty UHF CB Radio fibreglass whip, black, 477 MHz, 5/16"-26 brass thread, 20W, 6.6 dBi - 640mm

Product code: ZN1-77-04

The ZN1-77-04 from ZCG Scalar is a high-performance UHF CB radio fibreglass whip antenna engineered for reliable communication across the 477 MHz UHF CB band, delivering strong omnidirectional coverage for both mobile and fixed installations. Designed for demanding field use, it provides an effective balance of high gain performance, mechanical durability, and a compact physical profile.

Constructed with a heavy-duty fibreglass radiator, the ZN1-77-04 is built to withstand harsh Australian environmental conditions, making it well suited to regional travel, off-road driving, farming, transport fleets, and recreational 4WD communications. Its phased coil design ensures efficient radiation characteristics, delivering a high-performance 6.6 dBi gain output while maintaining stable omnidirectional signal propagation across varied terrain including flat and semi-hilly environments.

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Frequency

477 MHz - UHF CB radio

Bandwidth

476.4125 - 477.4125 MHz - all 40/80 channels

Gain

6.6 dBi - suits moderate hilly or flat terrain

Tuning

Factory at 1.5:1 VSWR

Impedance

50 Ohms

H Plane beamwidth

360° omnidirectional

E Plane beamwidth

Determined by mount base

Maximum Power

20 Watts

Polarisation

Vertical

Construction

Black heatshrunk fibreglass and chrome mount ferrule

Connector

5/16"-26 brass female thread

Dimensions

Height: 640mm, Hex: 15.88mm, Mount thread: 5/16"-26 brass female

Weight - kg

0.110

Working Temperatures

-20°~+65°C

Why Choose ZCG?

Australian Owned & Manufactured, High Quality RF Solutions Since 1970

Experienced, Knowledgeable In-House Sales Consultants And Technical Support

Quality Certified And Reliable, Trusted Product Support

Contact us now to find out how ZCG can help you