
with stainless steel ferrule. Used with standard 1"-14 mounts, this thick-walled fiberglass antenna is perfect for stand-alone AIS applications or for combination VHF/AIS installations where a splitter is used. All KJM antennas are backed by a 5-Year warranty, so you can communicate with confidence!


4 Foot Marine AIS
New A431-AIS
Marine AIS/VHF Antenna
4 foot / 3db gain
The new A431-AIS marine AIS/VHF antenna builds on the success of the A430-AIS and 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 hassle-free, professional installation. The A431-AIS uses copper and brass elements for maximum range and efficiency, all enclosed in a stylish UV resistant radome
Features
Specifications
Marine VHF Band, 156-163 MHz,
tuned to AIS frequency
3 db
4' White Fiberglass with Stainless
Steel Ferrule
50 ohms
50 Watts
Vertical
Copper and Brass
Nominally 1.5:1 at 156.8 MHz
20' RG-8/X
PL-259, solder type, not installed
Grounded: The antenna will read shorted on continuity test
Five years
-
Single 4' section, 3db 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: M101 (sold separately)
-
Suggested AIS/VHF splitter: SPL100 (sold separately)
-
Five-year warranty

AC201
20' Extension

SPL100
Band Separator

M201
Antenna Mount

M101
Antenna Mount
Accessories
Frequency Range
Average Gain
Housing
Impedance
max. Input Power
Polarization
Elements
SWR
Cable Supplied
Connector
DC Ground
Warranty