User Guide

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INSTRUCTIONS

HF/50 MHz 5-BAND ANTENNA

AH-703

Thank you for purchasing the AH-703

/50

z5-

BAND ANTENNA

. This antenna covers 7, 14, 21, 28

and 50 MHz bands, and is designed for portable

operation of the IC-703 when carried in the LC-156.

Please read these instructions thoroughly before

using the AH-703.

■ IMPORTANT

READ ALL INSTRUCTIONS carefully and completely

before using the AH-703.

SAVE THIS INSTRUCTION SHEET!— This instruction

contains important safety and operating details for the

AH-703.

■ PRECAUTION

R WARNING: HIGH VOLTAGE!

NEVER touch the antenna element/wire while tuning

or transmitting. This may result electrical shock or burn.

R WARNING SUSPEND operation immediately or

NEVER put up the antenna when thunder occurs or

can be heard in the distance.

R WARNING NEVER assemble or disassemble the

antenna at any crowded area. A person may be in-

jured.

USE the AH-703 for portable operation with the IC-703

ONLY. NEVER install the antenna to a vehicle for mo-

bile operation.

DISCONNECT the antenna when not using the an-

tenna for long period of time.

DO NOT use chemical agents such as benzine or alco-

hol when cleaning, as they can damage the AH-703.

READ THE IC-703 INSTRUCTION MANUAL FIRST

before attempting to operate the transceiver.

■ Supplied items

■ Antenna description

■ Antenna speciﬁcations

• Frequency coverage :

7, 14, 21, 28 and 50 MHz bands

• Type of antenna :

⁄4λ type whip antenna

• Antenna connector : PL-259 (50 Ω: nominal)

• Max. input power : 20 W

• Total antenna length : Approx. 1,390 mm; 4.6 ft

(at the longest element length)

• Weight : Approx. 330 g; 11.6 oz

(without grounding wires)

All stated speciﬁcations are subject to change without notice or

obligation.

Top element

Short terminal A

Short element

Loading coil A

Short terminal B

Loading coil B

Short terminal C

Loading coil C

Short terminal D

Loading coil D

Short terminal E

Base element

Antenna connector

(PL-259 type)

Base

element

Top element Allen wrench

Grounding wires

Set screw

Icom, Icom Inc. and the logo are registered trademarks of

Icom Incorporated (Japan) in the United States, the United King-

dom, Germany, France, Spain, Russia and/or other countries.

AH-703.qxd 03.10.2 18:02 Page 1

Summary of content (2 pages)

PAGE 1
AH-703.qxd 03.10.2 18:02 Page 1 INSTRUCTIONS HF/50 MHz 5-BAND ANTENNA AH-703 Thank you for purchasing the AH-703 HF/50 MHz 5BAND ANTENNA. This antenna covers 7, 14, 21, 28 and 50 MHz bands, and is designed for portable operation of the IC-703 when carried in the LC-156. Please read these instructions thoroughly before using the AH-703. ■ Antenna description ■ IMPORTANT READ ALL INSTRUCTIONS carefully and completely before using the AH-703.
PAGE 2
AH-703.qxd 03.10.2 18:02 Page 2 ■ Assembling the antenna e Push [TUNER] on the IC-703 controller, then measure the VSWR. • See the IC-703 instruction manual for the VSWR measurement procedure. r When the VSWR is not good enough (VSWR>1.5:1) Tighten or not tuned, adjust the following. • Top element length: Loosen the nut of the top element, then adjust the element length as illustrated below.