Icom AT-140 - Manuals - manualsarea.com

Page 2 - Word; SUPPLIED ACCESSORIES

i FOREWORD Thank you for purchasing the AT-140 HF AUTO- MATIC ANTENNA TUNER . The AT-140 is designed, primarily for use with Icom HFtransceivers. Refer to your HF transceiver instruction manual for op-eration. If you have any questions, contact your dealer. IMPORTANT READ ALL INSTRUCTIONS carefully ...

Page 3 - MISCELLANEOUS ITEMS; FEATURES

ii MISCELLANEOUS ITEMS The following parts are additionally required for instal-lation, but are not supplied with the AT-140.Purchase these parts locally. q AWG 14 × 4-conductor shielded cable *Icom offers an optional OPC-1147 CONTROL CABLE . Length: 10 m; 32.8 feet w 50 Ω coaxial cable e PL-259 con...

Page 4 - ANTENNA SYSTEM; Antenna for ship; Required antenna element length; multiples of; Antenna for land operation

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 efficiency. Undesirable antenna element lengthsAVOID multiples of 1 ⁄ 2...

Page 5 - — When grounding to metal hull

2 1 ANTENNA SYSTEM ■ Coaxial cable Insulate the lead-in cable of the AT-140 antenna ter-minal and antenna element from other metal objects. To prevent interference, keep cables as far as possi-ble from an antenna, electric pump and other elec-tronic equipment. To prevent erroneous indications, keep ...

Page 6 - INSTALLATIONS; Installation outline; Mount the AT-140 in the desired location.; Control cable; Refer to p. 6 “Terminal information” for details.; When connecting to Icom IC-M802

2 3 INSTALLATIONS ■ Installation outline q Connect a control cable and 4-conductor shieldedcable. • Refer to “Control cable” below. w Connect and solder the PL-259 connector to thecoaxial cable. • Refer to p. 4 “PL-259 connector.” e Mount the AT-140 in the desired location. • Refer to p. 4 “Mounting...

Page 7 - Mounting; Mounting on a Mast/Metal pole; Mount the AT-140 securely with the

4 2 INSTALLATIONS ■ PL-259 connector q Slide the coupling ring over the coaxial cable. Stripthe cable jacket and pull back to reveal 10 mm ofbraid. • Soft solder the exposed braid and then pull out the jacket. w Strip the cable as shown below. Soft solder the cen-ter conductor the entire length of t...

Page 8 - Cable connections

5 2 INSTALLATIONS ■ Cable connections q Connect the coaxial cable and the control cable tothe AT-140 as illustrated below. w Cover both the antenna and the control cable con-nectors with rubber vulcanizing tape and fix it witha vinyl tape to prevent water seeping into the con-nector. e Fix both of t...

Page 9 - CONTROL CABLE SIGNALS; Terminal information

3 6 CONTROL CABLE SIGNALS ■ Terminal information Consider the following points when using a non-Icomtransceiver. Start voltage [STAR] When a start voltage (less than 1 V) is received, theAT-140 begins automatic tuning. Key voltage [KEY] During automatic tuning, the AT-140 grounds the keyvoltage line...

Page 10 - Transceiver setting; Non-Icom HF transceiver

7 3 CONTROL CABLE SIGNALS ■ Transceiver setting IC-M700 with serial number 2500 and below In the IC-M700, change the [TUNE] switch settingfrom the “1” position to the “2” position. Confirm thatthe [KEY] switch is in the “2” position. Refer to the IC-M700 instruction manual p. 9 for details. Other IC...

Page 11 - UNIT DESCRIPTION AND SPECIFICATIONS; Specifications

8 4 UNIT DESCRIPTION AND SPECIFICATIONS Antenna terminal Mounting plate Control cable receptacle Antenna cable receptacle Mounting plate Water 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 ■ Specifications ■ Unit description • Frequency coverage : 1.6–30 MH...