Such a connection could cause a fire hazard and/or electric shock. DO NOT expose the transceiver to rain, snow or any liquids. DO NOT reverse the polarities of the power supply when connecting the transceiver. DO NOT apply an RF signal of more than 20 dBm (100mW) to the antenna connector. This could damage the transceiver's front end. ORDERING PARTS Be sure to include the following four points when ordering replacement parts: 1. 10-digit order numbers 2. Component part number and name 3.

• One of either “C1” to “C6” blinks. e Push [ Y YY] (or [ Z ZZ]) to scroll the message. • Push [ Z ZZ] or [ Y YY] to move the cursor to left or right, respectively. r Push [.• ENT ] (or [D• CLR] ) to exit OPTION SET MODE. ¦ ¦ A GPS receiver (RS-232 output/format/4800 bps) can be connected to [DATA] jack of the IC-V82/U82 to indicate current position (Latitude and The position data can also be transmitted with a message D DD Position indication q While connected to a GPS receiver, push [A• FUNC]

5-1 5-2 TRANSMITTER CIRCUITS.................................................... 5-2 5-3 PLL CIRCUITS ............................................................. 5-4 5-4 DIGITAL CIRCUITS.......................................................... 5-5 5-5 POWER SUPPLY CIRCUITS................................................... 5-5 5-6 PORT ALLOCATIONS........................................................ 5-5 SECTION 6 ADJUSTMENT PROCEDURES 6-1 PREPARATION.................................

VERSION SYMBOL #02 Europe EUR #04 Australia AUS #06 U.S.A. USA-1 #07 Korea KOR NEVER connect the transceiver to an AC outlet or to a DC power supply that uses more than 16 V. This will ruin the transceiver. DO NOT expose the transceiver to rain, snow or any liquids. DO NOT reverse the polarities of the power supply when connecting the transceiver. DO NOT apply an RF signal of more than 20 dBm (100 mW) to the antenna connector. This could damage the transceiver’s front end. To upgrade quality, an

Correct the set mode settings after resetting: -Optional filter settings (p. 55) Initial settings After resetting the transceiver, set controls and switches as shown in the figure below. [POWER] [F-INP] [M-CL] Under cooler temperatures, the LCD may appear dark and unstable after turning power ON. This is normal and does not indicate any equipment malfunction. CW : Max. clockwise [METER]: Po [ANT]: 1 [ATT]: OFF [PRE]: OFF [TWIN PBT]: Center [APF], [AUTO NOTCH]: OFF [LOCK]: OFF[AGC]: MID [POWER]:

WARNING: MODIFICATION OF THIS DEVICE TO RECEIVE CELLULAR RADIO TELEPHONE SERVICE SIGNALS IS PROHIBITED UNDER FCC RULES AND FEDERAL LAW. FOREWORD Thank you for purchasing this The IC-R20 COMMUNICATIONS RECEIVER is designed and built with Icom’s superior technology and craftsmanship. product should provide you with years We want to take a couple of moments of your for making your IC-R20 your radio of choice, agree with Icom’s philosophy of “technology first.” Many hours of research and development

this radio should provide you with years We hope you agree with Icom’s philosophy of “technology first.” Many hours of research and development design of your IC-M304. DFEATURES . Large 2-digit Channel with scrolling comment . New Force5Audio . speaker . Built-in DSC meets RTCM SC101 requirement . Submersible construction . Favorite channel function . AquaQuake water draining function Icom, Icom Inc. and the logo are registered trademarks of Icom Incor porated (Japan) in the United States, the U

SAFETY TRAINING INFORMATION CAUTION To ensure that your exposure to RF electromagnetic energy is within the FCC allowable limits, always adhere to the following guidelines: • DO NOT operate the radio without a proper antenna attached, as this may damage the radio and may also cause you to exceed FCC RF exposure limits. A proper antenna is the antenna supplied with this radio by the manufacturer or an antenna specifically authorized by the manufacturer for use with this radio. • DO NOT transmit f

EXPLICIT DEFINITIONS WORD DEFINITION RWARNING Personal injury, fire hazard or electric shock may occur. CAUTION Equipment damage may occur. NOTE If disregarded, inconvenience only. No risk of personal injury, fire or electric shock. Icom, Icom Inc. and the logo are registered trademarks of Icom Incorporated (Japan) in the United states, the United Kingdom, Germany, France, Spain, Russia and/or other countries. SmarTrunk II™ is a trademark of the SmarTrunk Systems, Inc. PRECAUTION RWARNING! NEVER

7 k) B 49.3/52 7 - 3 M.=Mounted side (T: Mounted on the Top side, B: Mounted on the Bottom side) S.=Surface mount [MAIN UNIT] REF ORDER DESCRIPTION M. H/V NO. NO. LOCATION R221 ?030005050 S.RES ERJ2GEJ 103 X (10 k) B 44.4/49.8 R222 ?0300050g0 S.RES ERJ2GEJ 104 X (100 k) B 1?.?/33.9 R223 ?0300050g0 S.RES ERJ2GEJ 104 X (100 k) B 16.2/33.9 R224 ?030005050 S.RES ERJ2GEJ 103 X (10 k) B 157/327 R225 ?030005000 S.RES ERJ2GEJ 4?1 X (4?0) B a/1g.2 R226 ?030004ga0 S.RES ERJ2GEJ 101 X (