Instruction/ maintenance manual of the product AT-140 Icom
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HF AUT OMA TIC ANTENNA TUNER AT-140 INSTRUCTION MANUAL.
i FOREWORD Thank you for purchasing the A T -140 HF AUTO- MA TIC ANTENNA TUNER . The A T -140 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 MISCELLANEOUS ITEMS The following parts are additionally required for instal- lation, but are not supplied with the A T -140. Purchase these parts locally . q A WG 14 × 4-conductor shielded cable *Icom offers an optional OPC-1 147 CONTROL CABLE . Length: 10 m; 32.
1 1 ANTENNA SYSTEM ■ 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 -140 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 ■ 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 . ” e Mount the A T -140 in the desired location.
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 ■ Cable connections q Connect the coaxial cable and the control cable to the A T -140 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 ■ 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 -140 begins automatic tuning.
7 3 CONTROL CABLE SIGNALS ■ T ransceiver setting IC-M700 with serial number 2500 and below In the IC-M700, change the [TUNE] switch setting from the “ 1 ” position to the “ 2 ” position. Con fi rm that the [KEY] switch is in the “ 2 ” position.
8 4 UNIT DESCRIPTION AND SPECIFICA TIONS Antenna terminal Mounting plate Control cable receptacle Antenna cable receptacle Mounting plate W ater drain screw Ground terminal 340 mm; 13.4 in 230 mm; 9.1 in 80 mm; 3.1 in 91.5 mm; 3.6 in ■ Speci fi cations ■ Unit description • Frequency coverage : 1.
1-1-32 Kamiminami, Hirano-ku, Osaka 547-0003 Japan A-6175H-1EX Printed in Japan © 2002 Icom Inc. Icom America Inc. <Corporate Headquarters> 2380 1 16th Avenue N.E., Bellevue, W A 98004, U.S.A. Phone: (425) 454-8155 Fax: (425) 454-7619 URL: http//www .
An important point after buying a device Icom AT-140 (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-140 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-140 - thus you can check whether the hardware meets your expectations. When delving into next pages of the user manual, Icom AT-140 you will learn all the available features of the product, as well as information on its operation. The information that you get Icom AT-140 will certainly help you make a decision on the purchase.
If you already are a holder of Icom AT-140, 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-140.
However, one of the most important roles played by the user manual is to help in solving problems with Icom AT-140. Almost always you will find there Troubleshooting, which are the most frequently occurring failures and malfunctions of the device Icom AT-140 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
