Used Very Good Icom AH-705 Antenna Tuner S/N: 12001374
Tested with IC-705 and confirmed to work
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)
