Icom AH-705 Antenna Tuner

Icom AH-705 Antenna Tuner

Covers the 1.8 MHz to 50 MHz bands

30 m, 98.4 ft or longer antenna: 1.8 – 54 MHz, 7 m, 23 ft or longer antenna: 3.5 – 54 MHz

* Depending on operating conditions or environments, the tuner may not be able to tune the antenna.

・SO-239 antenna connector for 50 Ω antenna such as dipole or Yagi

・“Terminal connector”, binding post socket adapter supplied for a long wire antenna

・2-way power sources using alkaline batteries or external 13.8 V DC*

* 13.8 V DC should be taken directly from an external power supply, not through the IC-705.

・IP54 dust-protection and water resistance construction*

* The connectors should be covered with an adhesive tape or a jack cover to prevent water seeping into the connection.

・Full automatic tuning, just push the [TUNER] button on the IC-705

・Latching relays used for saving power consumption

・190 × 105 × 40 mm; 7.5 × 4.1 × 1.6 in, 450 g; 15.8 oz* compact design

* Battery cells are not included.

Specifications:

Tunable frequency range              1.8 – 54 MHz (with a 30 m, 98.4 ft or longer wire antenna)

3.5 – 54 MHz (with a 7 m, 23 ft or longer wire antenna)

Maximum input power  10 W

Input impedance              50 Ω

Power requirement for tuning    5 W, 10 W

Tuning time (approximate)          Average: 2 – 3 seconds

Maximum: 15 seconds

Power supply requirement          Battery: 3.0 V DC (LR6 (AA) alkaline × 2 cells)

DC Input: 13.8 V DC (±15%)

Current drain     Less than 300 mA (at tuning)

Less than 1 mA (stand-by)

Electric polarity Negative ground

Operating temperature range    –10°C to +60°C, 14°F to +140°F

Tuning accuracy                Less than 1: 2.0 VSWR

(except λ/2 of antenna length and its multiples)

Number of tuned memories        45 memories

Dimensions (W × H × D) (projections not included)            190 × 105 × 40 mm; 7.5 × 4.1 × 1.6 in

Weight (approximate)   450 g, 15.8 oz (battery cells are not included)

Supplied Accessories:

Coaxial cable (2 m, 6.6 ft, BNC connectors, between AH-705 and IC-705)

Control cable (2 m, 6.6 ft, between AH-705 and IC-705)

Terminal connector, PL-259 to binding post socket adapter for a long wire antenna*

Mounting bracket (with a screw and washer)

DC plug