AFJIC-M2AVHF Marine Transceiver

INSTRUCTION MANUAL iM2A VHF MARINE TRANSCEIVER This device complies with Part 15 of theFCC Rules. Operation is subject to thecondition that this device does not causeharmful interference. ii FOREWORDThank you for purchasing this Icom product. The IC-M2A VHFMARINE TRANSCEIVER is designed and built with Icom’s su-perior technology and craftsmanship. With proper care thisproduct should provide you with years of trouble-free operation.IMPORTANTREAD ALL INSTRUCTIONS carefully and com- pletely before using the transceiver. SAVE THIS INSTRUCTION MANUAL— This in- struction manual contains important operating instructions forthe IC-M2A. EXPLICIT DEFINITIONS FEATURES+ Water-resistant construction Built tough to withstand the punishing marine environ-ment, the IC-M2A meets JIS water-resistant specificationgrade 7. + Dual watch and tri-watch functions Convenient functions which allow you to monitor the dis-tress channel (ch 16) while receiving a channel of yourchoice—dual watch; or monitor the distress channel andanother channel while receiving a channel of yourchoice—tri-watch. + Large, easy-to-read LCD With dimensions of 24(H) × 35(W) mm, the IC-M2A’s function display is easy to read and shows operating con-ditions at a glance. Backlighting and contrast can be ad-justed to suit your preferences. + Simple operation Ergonomic design with a minimum number of switchesand controls provides simple intuitive operation. WORD DEFINITION R WARNING Personal injury, fire hazard or electric shockmay occur. CAUTION Equipment damage may occur. NOTE If disregarded, inconvenience only. No riskof personal injury, fire or electric shock. After exposure to saltwater, clean the transceiver thor-oughly with fresh water to avoid corrosion. iii CAUTIONSR WARNING! NEVER connect the transceiver to an AC outlet. This may pose a fire hazard or result in an electricshock. R WARNING! NEVER hold the transceiver so that the antenna is very close to, or touching exposed parts of thebody, especially the face or eyes, while transmitting. Thetransceiver will perform best if the microphone is 5 to 10 cmaway from the lips and the transceiver is vertical. NEVER connect the transceiver to a power source other than the BP-223 or BP-224. Such a connection will ruin thetransceiver. AVOID using or placing the transceiver in direct sunlight or in areas with temperatures below –20°C (–4°F) or above+60°C (+140°F). KEEP the transceiver out of the reach of children. KEEP the transceiver at least 1 meter away from your ves- sel’s magnetic navigation compass. BE CAREFUL! The transceiver rear panel will become hot when operating continuously for long periods. BE CAREFUL! The IC-M2A employs waterproof con- struction, which corresponds to JIS waterproof specification,grade 7 (1 m/ 30 min.). However, once the transceiver hasbeen droped, waterproofing cannot be guaranteed due to thefact that the transceiver may be cracked, or the waterproofseal damaged, etc. MAKE SURE the flexible antenna and battery pack are securely attached to the transceiver, and that the antenna andbattery pack are dry before attachment. Exposing the insideof the transceiver to water will result in serious damage to thetransceiver. KEEP the transceiver at least 1 m (3.3 ft) away from the ship’s navigation compass. KEEP the transceiver out of the reach of children. For U.S.A. onlyCAUTION: Charges or modifications to this device, not expressly approved by Icom Inc., could void your authority tooperate this device under FCC regulations. iv SAFTY TRAINING INFORMATION Your Icom radio generates RF electromagneticenergy during transmit mode. This radio is de-signed for and classified as “Occupational UseOnly”, meaning it must be used only during thecourse of employment by individuals aware ofthe hazards, and the ways to minimize such hazards. This radio is NOT intended for use by the “General Popula-tion” in an uncontrolled environment.This radio has been tested and complies with the FCC RF exposurelimits for “Occupational Use Only”. In addition, your Icom radio com-plies with the following Standards and Guidelines with regard to RFenergy and electromagnetic energy levels and evalution of such lev-els for exposure to humans: • FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance with FCC Guidelines for Human Exposure to RadioFrequency Electromagnetic Fields. • American National Standards Institute (C95.1-1992), IEEE Stan- dard for Safety Levels with Respect to Human Exposure to RadioFrequency Electromagnetic Fields, 3 kHz to 300 GHz. • American National Standards Institute (C95.3-1992), IEEE Rec- ommended Practice for the Measurement of Potentially Haz-ardous Electromagnetic Fields– RF and Microwave. WARNING To ensure that your expose to RF electro-magnetic energy is within the FCC allowablelimits for occupational use, always adhereto the foliowing guidelines: • DO NOT operate the radio without a proper antenna attached, as this may damaged the radio and may also cause you to ex-ceed FCC RF exposure limits. A proper antenna is the antennasupplied with this radio by the manufacturer or antenna specifi-cally authorized by the manufacturer for use with this radio. • DO NOT transmit for more than 50% of total radio use time (“50% duty cycle”). Transmitting more than 50% of the time cancause FCC RF exposure compliance requirements to be ex-ceeded. The radio is transmitting when the “TX indicator” lightsred. You can cause the radio to transmit by pressing the “PTT”switch. • ALWAYS use Icom authorized accessories (antennas, batteries, belt clips, speaker/mics, etc). Use of unauthorized accessoriescan cause the FCC RF exposure compliance requirements to beexceeded. CAUTION v IN CASE OF EMERGENCYIf your vessel requires assistance, contact other vessels andthe Coast Guard by sending a distress call on channel 16. m USING CHANNEL 16 DISTRESS CALL PROCEDURE1. “MAYDAY MAYDAY MAYDAY.”2. “THIS IS ...........................” (name of vessel)3. Your call sign or other indication of the …

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November 14, 2001 File No.: ICOM-032-SAR ICOM Incorporated 2380 116 Aveue North East Bellevue Washington USA 98004 NOT TRANSFERABLE This Verification Certificate is hereby issued to the named GRANTEE and is VALID ONLY for the equipment identified hereon for use under the rules and regulations listed below: GRANTEE'S NAME: ICOM Incorporated PRODUCT UNDER TEST: Handheld Portable VHF Radio Transceiver MODEL NO.: IC-M2A FCC ID: AFJ-IC-M2A OPERATING FREQUENCY RANGE: 156.050 MHz ~ 157.425 MHz NOMINAL RF OUTPUT POWER: 5 W (Conducted) PEAK SPATIAL-AVERAGE SAR: 1.266 W/Kg (50% Duty Cycle) APPLICABLE STANDARDS: SAR (Specific Absorption Rate) requirements using guidelines established in IEEE C95.1-1991, FCC OET Bulletin 65 (Supplement C), Industry Canada RSS-102(Issue 1) and ACA Radiocommunications (Electromagnetic Radiation – Human Exposure) Amendment Standard 2000 (No. 1) • Assessed by ITI (UK) Competent Body, NVLAP (USA) Accreditation Body & ACA/AUSTEL (Australia), VCCI (Japan) • Accredited by Industry Canada (Canada) under ACC-LAB (Europe/Canada MRA and APEC/Canada MRA) • Recognized/Listed by FCC (USA) • All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) Approved by: Tri M. Luu, P.Eng. V.P. – Engineering UltraTech 3000 Bristol Circle, Oakville, Ontario, Canada, L6H 6G4 Telephone (905) 829-1570 Facsimile (905) 829-8050 Website: www.ultratech-labs.com Email: [email protected]

November 5, 2001 FEDERAL COMMUNICATIONS COMMISSION 7435 Oakland Mills Road Columbia, MD 21046 USA Subject: Type Acceptance Application under FCC CFR 47, Parts 2 and 80 Stations in the Maritime Services Operating in the Frequency Band 156.050 - 157.425 MHz (25 kHz Channel Spacing) Applicant: Icom Incorporated Product: VHF Marine Transceiver Model: IC-M2A FCC ID: AFJIC-M2A Dear Sir/Madam, As appointed agent for Icom Incorporated, we would like to submit the application to Federal Communications Commission for certification of the above product. Please review all necessary files uploaded to FCC OET site. If you have any queries, please do not hesitate to contact us by our TOLL FREE number: OUR TELEPHONE NO.: 1-877-765-4173 Yours truly, Tri Minh Luu, P. Eng., V.P., Engineering TML/DH Encl. 2 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 Telephone (905) 829-1570 Facsimile (905) 829-8050 Website: www.ultratech-labs.com Email: [email protected] UltraTech Group of Labs

Circuit Description 1. RECEIVER CIRCUITS 1-1 ANTENNA SWITCHING CIRCUIT The antenna switching circuit functions as a low-pass filter while receiving and a resonator circuit while transmitting. It switches the flow of the transmitting and receiving signals. Receive signals enter the antenna connector and then pass through the low-pass filter (L80 - L82, C81-C85). The signals are then applied to the antenna switching circuit (D52, D90, L90, C90, C92). The filter signals are then applied to the RF amplifier. 1-2 RF Amplifier Circuit The signals from the antenna switching circuit are passed through a tunable band-pass filter (D92, L91~L94, C92~C104), and are applied to the RF amplifier (Q27). Amplified signals are reapplied to the other band-pass filter (D130, L130-L133, C108, C130-C142) to suppress unwanted signals. The filtered signals are mixed at the 1 st mixer (Q150) with a LO signal to produce a 21.7MHz 1 st IF signal. 1-3 IF Amplifier Circuit After passing through the Q150 signals applied to a pair of crystal filters FI150, FI151 to suppress out-of-band signals. The signal passed through the IF amplifier (Q151) is applied to the IC170 (pin 16). The IC170 consisted 2 nd . Local Oscillator, 2 nd Mixer, Limiter, and Quadrature Detector. The crystal of IC1 make a 21.25MHz as 2 nd Lo and it goes out after buffering through the pin 17. The pin2 of IC170 apply 1 st IF and the 450KHz of 2 nd IF goes out through the pin 3. The ceramic filter FI170 select the 450KHz and it apply to pin 5 of IC170 as input, Quadrature Detector detect the AF signal and send it out through the pin 9. The Quadrature Detector consist of X170, R171 and phase Delay. 1-4 SQUELTCH CIRCUIT The signal goes out via pin 9 of IC170 and after pass C175 its apply to IC190 for noise amplifier input. The amplifier (IC170) consist of R174~R176, C179, C180, then signal apply to the noise detector convert noise signal to DC voltage and then apply to IC360 A/D port at comparator section. 1-5 AF Amplifier Circuit The output signal from pin 9 of IC170 enter to mute circuit of IC260 and after pass through the high-pass filter (IC200C, R271-R273, C264, C265). After that by LPF filter (R279, C266) more than 3KHz frequency removed and signal on the VR board R1 adjust the amplitude and Q280 is mute circuit. De-emphasis circuit, consist of R286, C285 and add –6dB/oct frequency characteristic, then signals apply to IC280. The AF power amplifier circuit (IC-280) to obtain the 0.3W of audio output power at 8 Ohm load. The output voice signal from IC280 applied to internal speaker. 2. TRANSMITTER CIRCUITS 2-1 MICROPHONE AMPLIFIER, IDC, SPLATTER FILTER The voice signal entered via microphone pass through the R253, C254 and pre-emphasis circuit to amplify for +6dB/oct pre-emphasis characteristics. Amplified signal by IC200B, pass through the mute circuit (IC260) and after controlling amplitude by IC200A, fed to splatter filter circuit to remove unnecessary signals more than 3KHz. Then signals are applied to the VCO for FM modulation. 2-2 DRIVER/RF PWR AMPLIFIER The output signal from VCO circuit pass through the T/R switching circuit (D50) and is amplified at the Q50, Q53 and Q54. After buffering by Q50, signal applied to driver amplifier (Q53, Q54) and RF power amplifier circuit. The APC circuits keep stable RF power output by Q53, Q54 and IC50 (APC circuit). 2-3 APC CIRCUIT The APC circuit (IC50) protects the power amplifiers form excessive current. 3.VCO, PLL CIRCUITS 3-1 VCO CIRCUIT During transmission, varactor diodes D22, D23 and then L22, C26, C27 decide the oscillating frequency. The voice signal applied to D20 and FM modulation accrue. During receiving, D21 is ON and circuit will be short to ground through D20, R23 and Q20, then frequency of VCO oscillate will be shift to lower frequency. The VCO outputs from Q21 and Q22 are applied to the buffer amplifier (Q23). 3-2 PLL CIRCUIT The PLL circuit, using one dual PLL IC (IC1) and it has consisted a pair of pre scale, program counter, and phase comparator and charge pomp circuits. The reference frequency (21.25MHz) is oscillated by X1. During transmission and receiving, signals pass through the R8 - R10, R22, C10, C11 and C24 as PLL loop. 3. POWER SUPPLY CIRCUIT On VR board, turn on the R1 switch, then the 7.2 volt feed to VCC line via power line. There is a regulator (IC 220) to apply 5V for CPU. From CPU 5VS signal pass through the Q223 - Q225 and by send signal Q24 and Q25 make the transmission 5V (T5) and via Q22 and Q23 receiving 5 volt (R5) accrue.

Adjustment for FX-2458 (IC-F21) ADJUSTMENT Adjustment No. Adjustment Condition & Tuning Value Ref. No. CK. Point Preparation Connect the transceiver by cloning cable (OPC-478) to a PC (IBM compatible) and boot up the cloning software. Check points Be sure to use a tester with more than 50 kohm/V internal resistance when making each test. Lock Voltage Set the transceiver to the 400 MHz Adjustment and set so that the LV voltage is C54 during RX and C68 during TX. Adj. Freq. 400 MHz RX Side 1.3V 1.3V C54 LV TX Side 1.3V 1.3V C68 Lock Voltage Set the transceiver to the 430 MHz Check and check that all is within specification. Adj. Freq. 430 MHz RX Side 2.5V~4.0V 2.5V-4.0V LV TX Side 2.8V~4.3V 2.8V-4.3V Frequency Connect a power meter or attenuator Adjustment to the antenna terminal. Loose coupling the antenna terminal and frequency counter. Set the transceiver to near the TX greatest high band frequency and set the unit to TX. Use adjustment software to adjust the TX frequency to the values below. Set Frequency Set Freq. ± 500 Hz ±500Hz Adj.Soft ANT Con ADJUSTMENT Adjustment No. Adjustment Condition & Tuning Value Ref. No. CK. Point TX Output Adjust so that the transceiver power voltage Adjustment is stable with the voltage from the power terminal at 7.5V during TX. Use adjustment software to adjust the adjustment output to the values below. Adj. Freq. Greatest Low Band Freq. Hi Power 4.0W 4.0W Adj.Soft ANT Con L2 Power 2.0W 2.0W L1 Power 1.0W 1.0W TX Output Check Check that the in-band TX output is within the specifications below. Hi Power 3.0~5.0W 3.0-5.0W ANT Con L2 Power 1.2~2.8W 1.2-2.8W L1 Power 0.5~2.0W 0.5-2.0W Current Check at Check that the in-band power consumption TX is within the specifications below. Hi Power Less than 2.5A Less 2.5A PWR Con L2 Power Less than 2.0A Less 2.0A L1 Power Less than 1.5A Less 1.5A Checking Connect a spectrum analyzer to the ANT Spurious terminal through an attenuator. Set the attenuation so that the spectrum Analyzer does not distort. Set the transceiver to TX and when at Hi power, check that spurious is less than the value below in the bandwidth. Spurious Less than – 65dB of the Less than ANT Con fundamental wave -65 dB ADJUSTMENT Adjustment No. Adjustment Condition & Tuning Value Ref. No. CK. Point Preparation for When there is no particular set limits, set Checking Modula- the modulation analyzer for adjustment and tion Adjustment checking as below. HPF OFF LPF 20 kHz De-Emphasis OFF Detector (P ± P)/2 Connect the modulation analyzer set at the above conditions, through the attenuator to the antenna terminal. Connect an oscillo- scope, distortion meter and a level meter to the modulation analyzer’s detection output terminal. Connect a millivolt meter or a 600 ohm out- put impedance CR oscillator to the trans- ceiver’s mic terminal. Modulation Use the adjustment software to adjust the Balance modulation analyzer’s detection output Adjustment horizontal line so that it becomes a Straight line as below Adjust. Freq. Near Center Frequency Detection Adj.Soft ANT Con Output Deviation Set the CR oscillator to a 1 kHz sine wave, Adjustment 150mVrms, and input from the external mic terminal. Set the transceiver to TX and use the adjustment software to adjust to the following values. Adjust. Freq. Near Center Frequency ± 4.05 ~ Adj.Soft ANT Con WIDE ± 4.10 ± 0.05 kHz ±4.15kHz NARROW ± 2.10 ± 0.05 kHz ± 2.05 ~ ±2.15kHz ADJUSTMENT Adjustment No. Adjustment Condition & Tuning Value Ref. No. CK. Point Checking Check that the deviation in the bandwidth Deviation is as the values below. ± 3.6 ~ ANT Con WIDE ± 3.60 ~ 4.50 kHz ±4.5kHz NARROW ± 1.80 ~ 2.30 kHz ± 1.8 ~ ±2.3kHz Checking Modula- Check that the modulation in the bandwidth tion is as the value below WIDE/NARROW 7 ~ 20mV rms 7~20mV ANT Con WIDE:±3 KHz DEV ; NARROW:±1.5 KHz DEV rms Checking CTCSS/ Connect a linear detector via the attenuator DTCS/2/5 TONE/ to the antenna terminal, then reset so that DTMF DEVIATION each signaling type can be output. DTCS CODE 007 CTCSS 88.5 Hz 5 TONE CCIR 11111 DTMF # (Auto Dial Setting) 2 TONE 349.0 Hz Set the linear detector to the following. HPF OFF LPF 20 kHz De-emphasis OFF Level Meter (P/P)/2 Transmit while making sure no input is applied to the mic (or mic terminal), and check that each version in it’s bandwidth is as the values below, respectively. Wide CTCSS/DTCS ± 0.50~± 0.90kHz ±0.5-0.9kHz ANT Con Wide 2/5 TONE/ ± 2.40~± 3.60kHz ±2.4-3.6kHz DTMF Narrow CTCSS/DTCS ± 0.25~± 0.45kHz ±.25-.45kHz Narrow 2/5 TONE/ ± 1.20~± 1.80kHz ±1.2-1.8kHz DTMF ADJUSTMENT Adjustment No. Adjustment Condition & Tuning Value Ref. No. CK. Point Checking TX S/N Connect a linear detector via the attenuator to the antenna terminal, and set to the conditions below. HPF 50 Hz LPF 20 kHz De-emphasis OFF Level Meter (P/P)/2 Apply a 1 kHz signal from the low frequency oscillator to the mic terminal, and transmit, then adjust the low frequency oscillator output level so that the maximum modulation is 70%. Check that the TX S/N in the bandwidth is as the values below. WIDE More than 40 dB Over 40dB ANT Con NARROW More than 34 dB Over 34dB Adjusting RX When there is no particular set limits, set Sensitivity the RX adjustments and signal generator when checking to the settings below. Modulation Freq. 1kHz WIDE ± 3.5 kHz NARROW ± 1.75 kHz Set the signal generator in the following way for narrow channels. Adjust Freq. Near Greatest Lo band F. SG Input level +20 dBu Connect an 8 ohm non-inductive load and Adj.Soft RSSI line a distortion meter to the external speaker terminal. Adjust BPF (T1) ~ (T4) with the adjustment software, so that the sensitivity is at maximum. ADJUSTMENT Adjustment No. Adjustment Condition & Tuning Value Ref. No. CK. Point Checking RX Check that the signal generator level when Sensitivity the RX frequency bandwidth becomes 12 dB SINAD, is the value below. RX Sensitivity Less than -10 dBu Less-10dB ANT Con SP Jack Use the same check method for Wide channels also. Adjusting the se…

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IC-M2A PARTS LIST UnitCodeREF NoDescriptionType(Parts)ManufacturerVerQty Main1130007610IC1S.ICUPD3140GSNEC1 Main1120002830IC50S.ICNJM2125FJRC1 Main1110003200IC170S.ICTA31136FNTOSHIBA1 Main1190000350IC190S.ICM62363FP-650CMITSUBISHI1 Main1110003780IC200S.ICNJM2902VJRC1 Main1110005350IC220S.ICNJM2870JRC1 Main1140003830IC260S.ICTC4W66FTOSHIBA1 Main1110001810IC280S.ICTA7368FTOSHIBA1 Main1130010390IC340S.ICHN58X2416TIHITACHI1 Main1130009110IC341S.ICS-80942ANMP-DD6SEIKO1 Main1140010160IC360S.ICHD6473847RH(FX-2497A)HITACHI1 Main7900001480DA1DATAFX-2497A FIRM1 Main1590000430Q20S.TRANSISTORDTC144EUROHM1 Main1530002920Q21S.TRANSISTOR2SC4226 R25NEC1 Main1530002920Q22S.TRANSISTOR2SC4226 R25NEC1 Main1530002600Q23S.TRANSISTOR2SC4215 OTOSHIBA1 Main1530002600Q24S.TRANSISTOR2SC4215 OTOSHIBA1 Main1530002600Q25S.TRANSISTOR2SC4215 OTOSHIBA1 Main1530002920Q50S.TRANSISTOR2SC4226 R25NEC1 Main1530002060Q51S.TRANSISTOR2SC4081 RROHM1 Main1590002160Q52S.TRANSISTORXP6401MEC1 Main1560001020Q53S.FET2SK2973MITSUBISHI1 Main1560001050Q54S.FET2SK2974MITSUBISHI1 Main1530002920Q90S.TRANSISTOR2SC4226 R25NEC1 Main1580000660Q150S.FET3SK272MEC1 Main1530002360Q151S.TRANSISTOR2SC2714 YTOSHIBA1 Main1510000670Q220S.TRANSISTOR2SA1588 GRTOSHIBA1 Main1510000670Q221S.TRANSISTOR2SA1588 GRTOSHIBA1 Main1510000670Q222S.TRANSISTOR2SA1588 GRTOSHIBA1 Main1590000430Q223S.TRANSISTORDTC144EUROHM1 Main1590001190Q224S.TRANSISTORXP6501 ABMEC1 Main1520000450Q225S.TRANSISTOR2SB1132 QROHM1 Main1520000450Q230S.TRANSISTOR2SB1132 QROHM1 Main1590001190Q231S.TRANSISTORXP6501 ABMEC1 Main1590001770Q240S.TRANSISTORXP1213MACO1 Main1590002530Q250S.TRANSISTORUN911HMEC1 Main1530003090Q280S.TRANSISTOR2SC4213 BTOSHIBA1 Main1590000660Q350S.TRANSISTORDTC144TUROHM1 Main1720000670D1S.VARICAPHVU17HITACHI1 Main1790001260D20S.DIODEMA2S077MEC1 Main1790000620D21S.DIODEMA77MEC1 Main1720000780D22S.VARICAPHVU350BHITACHI1 Main1720000780D23S.VARICAPHVU350BHITACHI1 Main1790000620D50S.DIODEMA77MEC1 Main1790000620D51S.DIODEMA77MEC1 Main1790000620D52S.DIODEMA77MEC1 Main1790001210D80S.DIODE1SS375SANYO1 Main1790000620D90S.DIODEMA77MEC1 Main1790001210D91S.DIODE1SS375SANYO1 Main1790000620D92S.DIODEMA77MEC1 Main1790000660D93S.DIODEMA728MEC1 Main1790000620D130S.DIODEMA77MEC1 Main1750000130D350S.DIODEDA204UROHM1 Main2010002570FI150XTALFL-346DAISHINKU1 Main2010002570FI151XTALFL-346DAISHINKU1 Main2020001270FI170CERAMICCFWM450EMURATA1 Main6050011350X1S.XTALCR-726DAISHINKU1 Main6070000190X170S.DISCRICDBC450CX24MURATA1 Main6050010290X360S.XTALCR-610DAISHINKU1 Main6200008070L1S.COILMLF1608E 6R8K 6.8UTDK1 Main6200007000L20S.COILELJRE 82NG 82NMACO1 Main6200003090L21S.COILNL322522T 2R7J-3 2.7UTDK1 Main6200008190L22S.COIL0.25-1.9-8TL 80NUCHIDA1 Main6200006980L23S.COILELJRE R10G 0.1UMACO1 Main6200006980L24S.COILELJRE R10G 0.1UMACO1 IC-M2A PARTS LIST UnitCodeREF NoDescriptionType(Parts)ManufacturerVerQty Main6200006980L25S.COILELJRE R10G 0.1UMACO1 Main6200006980L50S.COILELJRE R10G 0.1UMACO1 Main6200006670L51S.COILELJRE 68NG 68NMACO1 Main6200003590L52S.COILEXCCL3225UMACO1 Main6200002320L53S.COILLQN1A 8N8J04 8.8NMURATA1 Main6200003590L54S.COILEXCCL3225UMACO1 Main6200009240L55S.COIL0.20-1.0-7TL 31NUCHIDA1 Main6200008240L56S.COIL0.30-0.9-5TL 14NUCHIDA1 Main6200008400L57S.COIL0.35-1.6-6TL 36NUCHIDA1 Main6200003710L58S.COILNL252018T 2R7J 2.7UTDK1 Main6200008450L80S.COIL0.35-1.6-5TL 28NUCHIDA1 Main6200008450L81S.COIL0.35-1.6-5TL 28NUCHIDA1 Main6200008400L82S.COIL0.35-1.6-6TL 36NUCHIDA1 Main6200008150L90S.COIL0.35-1.6-7TL 44NUCHIDA1 Main6200007760L91S.COILLQN21A 82NJ04 82NMURATA1 Main6200007760L92S.COILLQN21A 82NJ04 82NMURATA1 Main6200008190L93S.COIL0.25-1.9-8TL 80NUCHIDA1 Main6200008190L94S.COIL0.25-1.9-8TL 80NUCHIDA1 Main6200004720L95S.COILMLF1608D R10K 0.10UTDK1 Main6200002430L120S.COILNL252018T 082J 82NTDK1 Main6200002410L121S.COILNL252018T 056J 56NTDK1 Main6200003550L122S.COILMLF1608A 4R7K 4.7UTDK1 Main6200007760L130S.COILLQN21A 82NJ04 82NMURATA1 Main6200007760L131S.COILLQN21A 82NJ04 82NMURATA1 Main6200008190L132S.COIL0.25-1.9-8TL 80NUCHIDA1 Main6200008190L133S.COIL0.25-1.9-8TL 80NUCHIDA1 Main6200003050L150S.COILNL322522T R82J-3 0.82UTDK1 Main7510001160R1S.THERMISTORNTCCM16084LH 473KCTDK1 Main7030003940R2S.RESISTOR100K ERJ3GEYFMACO1 Main7030003560R3S.RESISTOR10K ERJ3GEMACO1 Main7030003640R4S.RESISTOR47K ERJ3GEMACO1 Main7030003380R5S.RESISTOR330 ERJ3GEMACO1 Main7030003440R6S.RESISTOR1K ERJ3GEMACO1 Main7030003640R7S.RESISTOR47K ERJ3GEMACO1 Main7030003440R8S.RESISTOR1K ERJ3GEMACO1 Main7030003200R9S.RESISTOR10 ERJ3GEMACO1 Main7030003480R10S.RESISTOR2.2K ERJ3GEMACO1 Main7030003320R20S.RESISTOR100 ERJ3GEMACO1 Main7030003410R22S.RESISTOR560 ERJ3GEMACO1 Main7030003440R23S.RESISTOR1K ERJ3GEMACO1 Main7030003680R24S.RESISTOR100K ERJ3GEMACO1 Main7030003680R25S.RESISTOR100K ERJ3GEMACO1 Main7030003550R26S.RESISTOR8.2K ERJ3GEMACO1 Main7030003550R27S.RESISTOR8.2K ERJ3GEMACO1 Main7030003350R28S.RESISTOR180 ERJ3GEMACO1 Main7030003390R29S.RESISTOR390 ERJ3GEMACO1 Main7030003660R30S.RESISTOR68K ERJ3GEMACO1 Main7030003420R31S.RESISTOR680 ERJ3GEMACO1 Main7030003390R32S.RESISTOR390 ERJ3GEMACO1 Main7030003630R33S.RESISTOR39K ERJ3GEMACO1 Main7030003400R34S.RESISTOR470 ERJ3GEMACO1 Main7030003660R35S.RESISTOR68K ERJ3GEMACO1 Main7030003440R36S.RESISTOR1K ERJ3GEMACO1 Main7030003440R50S.RESISTOR1K ERJ3GEMACO1 Main7030004050R51S.RESISTOR1 ERJ3GEMACO1 Main7030003520R52S.RESISTOR4.7K ERJ3GEMACO1 Main7030003320R53S.RESISTOR100 ERJ3GEMACO1 Main7030003260R54S.RESISTOR33 ERJ3GEMACO1 Main7030003500R55S.RESISTOR3.3K ERJ3GEMACO1 Main7030003450R56S.RESISTOR1.2K ERJ3GEMACO1 Main7030003310R57S.RESISTOR82 ERJ3GEMACO1 Main7030003440R58S.RESISTOR1K ERJ3GEMACO1 Main7030003580R59S.RESISTOR15K ERJ3GEMACO1 Main7030003440R60S.RESISTOR1K ERJ3GEMACO1 Main7030007330R61S.RESISTOR0.15 ERJ1W RSJMACO1 IC-M2A PARTS LIST UnitCodeREF NoDescriptionType(Parts)ManufacturerVerQty Main7030003680R62S.RESISTOR100K ERJ3GEMACO1 Main7030003560R63S.RESISTOR10K ERJ3GEMACO1 Main7030003560R64S.RESISTOR10K ERJ3GEMACO1 Main7030003680R65S.RESISTOR100K ERJ3GEMACO1 Main7030003740R66S…

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ADJUSTMENT Adjustment No. Adjustment Condition Turning Value Ref.No. CK.Point Preparation Set Mode Lock Voltage Adjusting The Reference Crystal Adjusting and check TX output 1 2 3 Output voltage : 7.5 V DC Current capacity : 3 A or more Enter the Set Mode by connect the cloning terminal to GND and turn power ON. Operation key : key “16” Adjust key : key “UP” and “DOWN” Select the channel 16 on RX side and check the lock voltage for 1.8+/-0.5V. Select the channel 16 on TX side And check the lock voltage for 1.6+/-0.5V Select “Fr” at set mode and then set the TX for 156.800MHz+/-500Hz in the bandwidth. Transmission channel: ch 16 Frequency :156.800MHz +/-500Hz Connect the power meter to the antenna terminal and select channel 16. Enter Set Mode and set the power as below. POWER HI (“Po”, “H”) 5.0 W POWER MID (“Po”, “M”) 3.0W POWER LOW (“Po”, “L”) 0.8W POWER E-LOW(“Po”,“ML”) 0.5W 1.8+/-0.5 V 1.6+/-0.5 V +/-500Hz 5.0W 3.0W 0.8W 0.5W UP/DO WN keys UP/DO WN keys CP1 CP1 ANT ANT ADJUSTMENT Adjustment No. Adjustment Condition Turning Value Ref.No. CK.Point Adjusting and Check the Modulation 4 Check the followings condition in bandwidth. TX HI POWER 5W type POWER HI 4.0 W~6.0 W POWER MID 2.2 W~4.0 W POWER LOW 0.6 W~1.0 W TX HI POWER 1W type POWER HI 0.6 W~1.0 W POWER MID 0.3 W~0.6 W Connect an attenuator to the antenna terminal and set to the conditions below for CH16. HPF OFF LPF 20KHz De-emphasis OFF Level Meter (P-P)/2 Add the following signal to audio generator and connect it to the MIC terminal. 35mV at 1KHz Enter Set Mode and select “dE” then set deviation frequency for +/-4.3 KHz. Add 3.5 mV 1KHz signal to audio generator and connect it to MIC terminal, then check the modulation for 2.5~3.5KHz. 4.0~6.0W 2.2~4.0W 0.6~1.0W 0.6~1.0W 0.3~0.6W +/-4.3KHz 2.5~3.5 KHz UP/DO WN keyS ANT ANT ANT ADJUSTMENT Adjustment No. Adjustment Condition Turning Value Ref.No. CK.Point Check TX S/N Checking Spurious Checking RX 5 6 7 Connect an attenuator to the antenna terminal, and set to the condition below for channel 16. HPF=50Hz, LPF= 20KHz, De-emphasis OFF Level Meter (P-P)/2 Apply a 1KHz signal and transmit 3.5KHz deviation then check that the TX S/N in theBandwidth is more than 40dB. Connect aspectrum analyzerto the ANT terminalthroughan attenuator.Setthe transceiver to TX and check the spurious for value below in the bandwidth. #01,02 more than 65dBc (HIPWR) #04~09 Less than 0.25uW Connect the signal generator and check the condition below. FREQ 156.8MHz (CH16) MOD FREQ 1KHz DEV +/-3.5KHz LEVEL +10dBu Connect an 8 ohm load and a distortion meter to the external speaker terminal. Check it for 12dBSINAD condition. #01,02 less than -9dBu #04~09 Less than –4dBu CheckdB SINAD for RX in the bandwidth. #01,02 Less than –9dBu #04,09 Less than –4dBu More than40d B More than65d B Less than0.2 5uWdB Less than -9dBu Less than -4dBu ANT External Speaker ADJUSTMENT Adjustment No. Adjustment Condition Turning Value Ref.No. CK.Point Checking AF output Checking RX S/N Adjusting the squelch Adjusting S-METER 8 9 10 11 Set the signal generator output level to +60dBu. Adjust the AF volume until the distortion meter reads 10%. Check the AF output for more than 0.30W. Set the signal generator output level to +40dBu same as the receive adjustment above. AF output is 50% of the rated value. Check that the S/N in the bandwidth is more than 40dB. Set the signal generator output level to –3dBu same as receiving adjustment. Enter Set Mode and select “Sq”, use “UP” and “DOWN” keys until level meter shows constant value. Then raise the squelch level using UP key until squelch closes once, then lower value, again using DOWN key until the squelch opening point. Set the signal generator output level to 0 dBu same as receiving adjustment. Enter Set Mode and select “SL”, set the S-METER pushing “UP” and “DOWN” keys. More than 0.3W More than 40dB Level Meter disappear UP/DO WN keys UP or DOWN External Speaker External Speaker External Speaker ADJUSTMENT Adjustment No. Adjustment Condition Turning Value Ref.No. CK.Point Checking Howling Checking Weather Alert Decoder 12 13 Set the signal generator output level to +60dBu as in RX adjustment, and for non-modulation. Next, set the internal speaker for operation to check that howling does not accrue. Apply to versions written “WX” at “ADJUSTMENT” item in the classified list Set the signal generator for following conditions. FREQ 163.275MHz(WX10) MOD FREQ 1050Hz DEV +/-3.5KHz LEVEL +30dBu Enter Set Mode and select ON for WX ALERT, then WX10 will receive. To hear BEEP sound, check the “ALT” flickering on LCD. Howling does not accrue BEEP “ALT” flickerin g External speaker Ex/In Sp LCD

Handheld Portable VHF Radio Transceiver Model No.: IC-M2A Tested For ICOM Incorporated 2380 116 Avenue North East Bellevue, Washington USA 98004 In Accordance With SAR (Specific Absorption Rate) Requirements Using Guidelines Established in IEEE C95.1-1991, FCC OET Bulletin 65 (Supplement C), Industry Canada RSS-102(Issue 1) and ACA …

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