Instruction Sheets for Part Number ICO-AH-740
ICOM AH-740 Mobile HF Auto-Tune Antennas
Mobile Antenna, Self-contained Automatic Tuning, 2.5 -30 MHz, 125 W, 75 in. Height, Stud Mount, Each
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Kit/Combo Contents
ICOM AH-740-A - ICOM Mobile Whip Antennas
Icom AH-740, Box of hardware, brackets, etc., BOX 1 of 2, Each
Kit Item Quantity: 1
Overview
Brand:
Manufacturer's Part Number:
AH-740
Part Type:
Product Line:
DXE Part Number:
ICO-AH-740
UPC:
731797017345
Mobile Antenna Type:
Multi-band
Mobile Antenna Height:
75.160 in.
Mobile Whip Length:
5.00 ft.
Antenna Matching Frequency Range:
2.5 - 30 MHz
Antenna Tuner Included:
Yes
Continous Tuning:
Yes
Power Handling (SSB/CW):
125W/125W
Antenna Feedline Connection Type:
UHF female, SO-239
Coax Included:
Yes
Coax Cable Length:
19.700 ft.
Mounting Bracket Included:
No
Antenna Mount Base Type:
Custom, mechanical
Quantity:
Sold individually.
Notes:
Control cable works with ICOM transceivers only. Requires heavy-duty mount and custom base plate fabrication to match selected mount.
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!
Documentation
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