ICOM AH-4

Automatic Longwire Antenna Tuner 3,5-54 MHz

 
Description
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ICOM AH-4
Art. 3055511
In stock. Delivered in 2-5 working days
Excl VAT € 326,45
incl VAT € 395,00
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The Icom AH-4 matches your transceiver to an antenna more than 7 m/23 ft long (3.5–54 MHz).

Features

Wide Tuning Range
The AH-4 provides reliable matching from 3.5 MHz to 54 MHz when using at least a 7 m (23 ft) antenna.

Automatic Digital Control Tuning
The built-in 8-bit microprocessor chooses the lowest SWR using more than 1,040,000 different LC (coil/capacitor) combinations.

45 Frequency Memories for Fast Tuning
The LC combinations of 45 previously-used frequencies are automatically memorized. Once a frequency is memorized, the AH-4
tunes on that frequency in less than 1 second. Note that the AH-4 does not memorize a frequency which is normally tuned within 2.5 seconds. Memories are retained only when the power is on.

Weatherproof Design
The AH-4’s tightly sealed plastic case allows convenient mounting virtually anywhere. The AH-4 can be mounted outdoors under your antenna.

0.3 W Radiated Power
Radiated power during tuning is less than 0.3 W, minimizing interference to other stations.

NOTE
The AH-4 can be used with most of Icom HF transceivers, which covers HF through 50 MHz bands. However, the IC-706 and IC-736 can only be tuned in the 3.5–30 MHz range.

Specifications

Frequency range : 3.5–54 MHz (with an antenna longer than 7 m; 23 ft)
Maximum input power : 120 W
Input impedance : 50 Ohm
Tuning power required : 5 to15 watts
Rated voltage : 13.8 V DC ±15% (current less than 1 A)
Usable temperature : –10°C to +60°C (+14°F to +140°F)
VSWR : 2.0:1 or less (except antennas a one half wave or multiple of a one half wave in length)
Weight : approx. 1.2 kg (2.65 lb)
Dimensions : W172 × H69.5 × D230 mm (projections not included)


Accessories supplied

U-boltsqq…………………………………………………………2
U-bolt bracketsww……………………………………………2
Flat washers (M6 large)ee…………………………………8
Flat washers (M6 small)rr……………………………………4
Spring washers (M6)tt…………………………………………8
Nuts (M6)yy………………………………………………………8
Hex head bolts (M6 uu× 50)…………………………………4
Self-tapping screws (A0 6 ii× 30)……………………………4
PL-259 connectorsoo……………………………………………2
!0 Weatherproof cap……………………………………………1
!1 Rubber vulcanizing tape……………………………………1
Control cable* (5 m; 16.4 ft)…………………………………1
Coaxial cable* (5D-2V: 5 m; 16.4 ft)………………………1

Dimensions and weight are including packaging
Dimensions  :  L36 x B30 x H13 cm
Weight  :  3,00 kg