Instruction/ maintenance manual of the product AT-141 Icom
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2001 NEW HF AUT OMA TIC ANTENNA TUNER AT-141 INSTRUCTION MANUAL AT-141_0.qxd 05.12.1 11:06 Page 1.
i 2001 NEW 2001 NEW FOREWORD Thank you for purchasing the A T -141 HF AUTO- MA TIC ANTENNA TUNER . The A T -141 is designed, primarily for use with Icom HF transceivers. Refer to your HF transceiver instruction manual for op- eration. If you have any questions, contact your dealer .
ii 2001 NEW MISCELLANEOUS ITEMS The following parts are additionally required for instal- lation, but are not supplied with the A T -141. Purchase these parts locally . q A WG 14 × 4-conductor shielded cable *Icom offers an optional OPC-1465 CONTROL CABLE .
1 1 ANTENNA SYSTEM 2001 NEW ■ Antenna for ship Required antenna element length Required antenna element length to achieve full per- formance varies according to the lowest frequency: The longer the antenna element, the better the an- tenna ef fi ciency .
2 1 ANTENNA SYSTEM ■ Coaxial cable Insulate the lead-in cable of the A T -141 antenna ter- minal and antenna element from other metal objects. T o prevent interference, keep cables as far as possi- ble from an antenna, electric pump and other elec- tronic equipment.
2 3 INST ALLA TIONS 2001 NEW ■ Installation outline q Connect a control cable and 4-conductor shielded cable. • Refer to “ Control cable ” below . w Connect and solder the PL-259 connector to the coaxial cable. • Refer to p. 4 “ PL-259 connector .
4 2 INST ALLA TIONS ■ PL-259 connector q Slide the coupling ring over the coaxial cable. Strip the cable jacket and pull back to reveal 10 mm of braid. • Soft solder the exposed braid and then pull out the jacket. w Strip the cable as shown below .
5 2 INST ALLA TIONS 2001 NEW ■ Cable connections q Connect the coaxial cable and the control cable to the A T -141 as illustrated below . w Cover both the antenna and the control cable con- nectors with rubber vulcanizing tape and fi x it with a vinyl tape to prevent water seeping into the con- nector .
3 6 CONTROL CABLE SIGNALS 2001 NEW ■ T erminal information Consider the following points when using a non-Icom transceiver . Start voltage [ST AR] When a start voltage (less than 1 V) is received, the A T -141 begins automatic tuning.
4 7 UNIT DESCRIPTION AND SPECIFICA TIONS 2001 NEW Antenna terminal Mounting plate Control cable receptacle Antenna cable receptacle Mounting plate W ater drain screw Ground terminal 340 mm 230 mm 80 mm 91.5 mm ■ Speci fi cations ■ Unit description • Frequency coverage : 1.
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003, Japan A-6472H-1EU Printed in Japan © 2005 Icom Inc. 2001 NEW Ico m A m e ri ca I n c . <Corporate Headquarters> 2380 1 16th Avenue N.E., Bellevue, W A 98004, U.S.A. Phone: +1 (425) 454-8155 Fax: +1 (425) 454-1509 URL: http//www .
An important point after buying a device Icom AT-141 (or even before the purchase) is to read its user manual. We should do this for several simple reasons:
If you have not bought Icom AT-141 yet, this is a good time to familiarize yourself with the basic data on the product. First of all view first pages of the manual, you can find above. You should find there the most important technical data Icom AT-141 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Icom AT-141 you will learn all the available features of the product, as well as information on its operation. The information that you get Icom AT-141 will certainly help you make a decision on the purchase.
If you already are a holder of Icom AT-141, but have not read the manual yet, you should do it for the reasons described above. You will learn then if you properly used the available features, and whether you have not made any mistakes, which can shorten the lifetime Icom AT-141.
However, one of the most important roles played by the user manual is to help in solving problems with Icom AT-141. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Icom AT-141 along with tips on how to solve them. Even if you fail to solve the problem, the manual will show you a further procedure – contact to the customer service center or the nearest service center
