- ICOM AH-740 Mobile HF Auto-Tune Antennas provide near-instantaneous tuning across a 2.5 to 30 megahertz range. Their self-contained multiband antenna tuner creates a unified wide-range mobile antenna of exceptional capability. Designed to facilitate mobile HF communications for commercial and military users around the world; they are both rugged and reliable.AH-740s can handle up to 125 watts PEP/Data and support 45 memories for tuning times of approximately 150ms. Non-memory tuning takes only 2 to 3 seconds. Tuning requires a minimum of 5 watts to a maximum of 15 watts. Their included whip antenna is 5 ft. (1.54m) tall.
Due to the size of their base, (5.7 x 6.3 in.), these antennas require special mounting considerations, such as a user-supplied receiver-hitch mount or a Gibbet mount or SUV-style spare tire antenna mount. A mounting base for the AH-740 installation must be locally prepared. Total height with the supplied whip and spring is 75.16 in. (6.26 ft.).
AH-740 Auto-Tune Antenna features:
* Electronic automatic tuning antenna (NOT a screwdriver)
* Lightweight (7.7 lbs.)
* 150ms typical high-speed tuning while memory tuning
* Low power consumption (0.4A typical)
* Operating temperature: minus 40 degrees F to plus 158 degrees F
* Supplied accessories: Control cable and coaxial cable; 19.7 ft. each
ICOM AH-740 Mobile HF Antenna
Icom AH-740 is a Genuine Icom relay-driven compact automatic tuning antenna for the Icom IC-718, IC-7200, IC-7410, IC-7600, IC-78, IC-9100, IC-7000 and IC-F8101 radios. Mobile Antenna, Self-contained Automatic Tuning, 2.5 -30 MHz, 125 W, 75 in. Height.