Mobile HF Auto-Tune Antennas

ICOM AH-740 Mobile HF Auto-Tune Antennas

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 The following items are required for installation, but are NOT supplied with the AH-740. * Antenna mount * Mounting base * Rubber sealing tape (DX Engineering part no. DXE-3M2155) * Electrical tape (DX Engineering part no. TRM-6143) An optional fiberglass Near Vertical Incidence Skywave (NVIS) antenna kit is available, providing an element length of 4.5m (14.8 ft). When band conditions permit, their NVIS kit facilitates short-range Skywave propagation up to about 500 km (300 mi.). You go the extra mile to have the best mobile HF communications possible. Purchase one of these ICOM AH-740 Mobile HF Auto-Tune Antennas from DX Engineering and ensure that your multiband mobile HF antenna is the absolute best!

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