3 dB VHF fiberglass antenna 1,0 m (3.3′) – Windex ready
The KM-4 combines all the technical features of the KM-3 antenna with the Windex type wind indicator support function, thanks to the special chrome-plated brass joint positioned at the top end. In a few minutes it is possible to position the pre-existing wind indicator or mount a new one, thus freeing up valuable space in the masthead. The KM-4 is a masthead antenna with high performance and great robustness. It’s built with a 1,4 mm thick fiberglass whip that gets fully foam injected with the special Scout 100% waterproof technique, and it’s ice white colored with high gloss anti-UV filter to prevent color deterioration.
The KM-4 is equipped with N female connector, to optimize the signal transmission quality. It’s supplied together with a heavy duty 3 mm thick electropolished stainless steel bracket, that guarantees a perfect and stable masthead installation. Don’t be fooled by its length, with only 100 cm the KM-4 gives the same performance of its 1,5 m big sister (KS-22) thanks to a special tuning of its inner electrical system.
The antenna is supplied together with the hexagonal key to tighten the wind indicator (wind indicator not included – to be purchased separately).
Technical specifications:
| Frequency | 156-162 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 | Fiberglass |
| Connector | N Female |
| Mounting | Stainless steel bracket |
| Length | 1,0 m (3.3′) |
| Weight | 0,30 kilo |
| Code | PF AN NVHF00029 |
Content:
| 1 x Antenna | |
| 1 x Stainless steel bracket | |
| 1 x Hexagonal key |