3 db AIS stainless steel antenna 0,9 m (3′) length


The Automatic Identification System (AIS) is an automated tracking system used on ships and by Vessel Traffic Services (VTS) for identifying and locating vessels by electronically exchanging data with other nearby ships and VTS stations.

AIS transponders use two different frequencies, VHF maritime channels 87B (161.975 MHz) and 88B (162.025 MHz). The KM-30A is specifically designed for sailing boats and tuned on the AIS frequencies.
It combines lightness and flexibility due to the quality stainless steel whip. The antenna is supplied together with a 3 mm thick stainless steel mounting bracket, for an easy and and stable installation on mast.


  • Electropolished stainless steel whip
  • Extra flexible
  • SO 239 waterproof connector
  • Mounting bracket supplied with the antenna


Specifiche tecniche:

 Frequency  161,975-162,025 MHz
 Impedance  50 ohm
 Electrical length  1/2 λ
 V.S.W.R.  < 1,5:1
 Polarization  Vertical
 Gain  3 dB
 Max power input  50 W
 DC ground  Yes
 Whip material  Stainless Steel
 Connector  SO 239
 Mounting  Stainless steel bracket
 Length  0,9 m (3.3′)
 Weight  0,23 kilo
 Code  PF AN NAIS002