New A1791-V 

Marine VHF Antenna

17.5 foot / 9db gain

A worthy replacement for the A1790-V, the new A1791-V marine VHF antenna is a 9db two-piece antenna rugged enough for commercial use but attractive enough for the finest of yachts.  It includes 20' of low-loss RG-8/X cable permanently attached to the antenna and a high-quality solder-type PL-259 connector for a professional installation. The A1791-V uses phased 1/2-wave copper and brass elements in a collinear array

with choking sleeve to suppress cable radiation, allowing for maximum range and efficiency. The elements are enclosed in a stylish UV resistant radome with stainless steel ferrule for use with standard 1"-14 mounts. All KJM antennas are backed by a 5-Year warranty, so you can communicate with confidence!

  • Two 105" sections (17.5' total), 9db gain

  • Brass and copper elements for maximum range and efficiency

  • Stainless steel ferrule with standard 1″-14 thread

  • 20ft RG-8/X low-loss cable

  • Solder-type PL-259 connector

  • Suggested mount: Shakespeare 409-R or 410-R (sold separately)

  • Five-year warranty


Antenna Mount
Band Separator

Frequency Range    

Average Gain



Max. Input Power




Cable supplied


DC Ground



Marine VHF Band, 156-163 MHz

9 db

17.5' Two-Piece White Fiberglass with Stainless Steel Ferrule and Couplings

50 ohms

150 Watts


Copper and Brass

Nominally 1.5:1 at 156.8 MHz

20' RG-8/X

PL-259, solder type, not installed

Not Grounded: The antenna will read open on continuity test

Five years


About KJM

KJM is dedicated to providing the finest in shipboard cameras, video accessories and  marine antennas. Our high quality products are built to withstand the harsh marine environment, and are designed by experts with over three decades of experience in the marine industry. 




Camera Catalog


Manuals & Documents