Instruction manual new2001 ah-740 hf automatic tuning antenna * the “stand” in the photo is not supplied with the tuning antenna..
I new2001 new2001 foreword thank you for purchasing the ah-740 hf automatic tuning antenna . The ah-740 is designed, primarily for use with icom hf transceivers. Refer to your hf transceiver instruction manual for operation. If you have any questions, contact your dealer. Important read all instruct...
New2001 ii precautions r danger high voltage! Never touch the antenna terminal, ground terminal, antenna while transmitting. R warning! Never transmit while installing the anten- na. This may cause an electric shock. Never use without a ground connection. Use the ground terminal for ground connectio...
New2001 new2001 iii new2001 supplied accessories the following accessories are supplied with the antenna. Q control cable (approximately 6 m; 19.7 ft) ...................... 1 w coaxial cable (approximately 6 m; 19.7 ft) ...................... 1 e whip antenna ..........................................
New2001 1 1 system installation new2001 new2001 1 new2001 1 ground connection ■ it is absolutely essential that the antenna is connected to an effective and stabile rf ground point— the vehicle chassis. It is further recommended that body panels are also bonded to the vehicle chassis. Make sure all ...
2 new2001 new2001 installations 2 2 new2001 new2001 typical installation scenarios ■ most recommended suv installation scenarios use a uni- versal gibbet mounting system (front) or the spare wheel antenna bracket (rear). Note the tuning antenna unit is kept clear of the vehicle’s hood and other meta...
New2001 new2001 3 2 installations 2 for best communications, position the antenna as high as possible. The figure 1 shows the preferred option selection. The figure 2 shows an antenna installation that uses the op- tional ah-5nv, for best communications on the 30–300km (18.6–186.5 miles) short range...
4 2 installations new2001 new2001 new2001 4 installation outline ■ important! The antenna is a critical element in any communication sys- tem. Correct installation is very important factor for achieving the utmost in antenna system performance and operation of your transceiver. We recommend that ins...
New2001 5 2 installations 5 new2001 2 cable connections ■ connect the coaxial cable and the control cable to the ah- q 740. • insert the control cable connector into the antenna body socket, then rotate the connector ring to lock it in place. Wrap the antenna connector with rubber vulcanizing tape, ...
6 2 installations new2001 new2001 new2001 new2001 6 new2001 6 new2001 new2001 new2001 optional ah-5nv ■ when using the ah-740 with the optional ah-5nv, install the ah-5nv as follows. Set screws (use 2.6 mm; 1 ⁄ 10 ˝ allen wrench) socket bolt (use 10 mm; 13 ⁄ 32 ˝ allen wrench) use allen wrench to ti...
New2001 new2001 7 3 specifications and options new2001 new2001 new2001 new2001 2 3 specifications ■ • frequency coverage: 2.2–30 mhz (with nvis kit) 2.5–30 mhz (with supplied whip) • power supply requirement: 13.8 v dc (supplied from the hf transceiver) • current drain: maximum 0.6 a • operating tem...
1-1-32 kamiminami, hirano-ku, osaka 547-0003, japan new2001 a-7088h-1ex printed in japan © 2013 icom inc..
