AFJIC-M402Non-Brodcast Marine Transceiver

INSTRUCTION MANUAL iM402VHF MARINE TRANSCEIVER This device complies with Part 15 of the FCC rules. Operation is sub-ject to the following two conditions: (1) This device may not causeharmful interference, and (2) this device must accept any interferencereceived, including interference that may cause undesired operation. i READ ALL INSTRUCTIONS carefully and completely before using the transceiver. SAVE THIS INSTRUCTION MANUAL — This in- struction manual contains important operating instructionsfor the IC-M402. The installation of this equipment shouldbe made in such a manner as to respectthe EC recommended electromagneticfield exposure limits (1999/519/EC). The maximum RF power available from this device is 25watts. The antenna should be installed as high as possiblefor maximum efficiency and that this installation heightshould be at least 6 meters above ground (or accessible)level. In the case where an antenna cannot be installed ata reasonable height, then the transmitter should neitherbe continuously operated for long periods if any person iswithin 6 meters of the antenna, nor operated at all if anyperson is touching the antenna. If the antenna cannot beinstalled at 6 meters or graterI, we recommend touse theone watt setting to minimize RF exposure.In all cases any possible risk depends on the transmitterbeing activated for long periods. (actual recommendationlimits are specified as an average of 6 minutes) Normallythe transmitter is not active for long periods of time. Someradio licenses will require that a timer circuit automaticallycuts the transmitter after 1–2 minutes etc. CAUTION IMPORTANT NOTE FOR RF SAFETY IN CASE OF EMERGENCY ii If your vessel requires assistance, contact other vessels andthe Coast Guard by sending a distress call on Channel 16. Or, transmit your distress call using digital selective calling onChannel 70. USING DIGITAL SELECTIVE CALLING (Ch 70) DISTRESS CALL PROCEDURE1. While lifting up the switch cover, push and hold [DISTRESS] for 5 sec. until you hear 5short beeps change to one long beep. 2. Wait for an acknowledgment from a coast station. • Channel 16 is automatically selected. 3. Push and hold [PTT], then transmit the appropriate information as at left. USING CHANNEL 16DISTRESS CALL PROCEDURE1. “MAYDAY MAYDAY MAYDAY.”2. “THIS IS ...............” (name of vessel)3. Your call sign or other indication of the vessel (AND 9-digit DSC ID if you have one). 4. “LOCATED AT ...............” (your position)5. The kind of the distress and assistance required. 6. Any other information which might facilitate the rescue. SAFETY TRAINING INFORMATION ......... iIMPORTANT .............................................. iIN CASE OF EMERGENCY ...................... iiTABLE OF CONTENTS ........................... iiiCAUTIONS .............................................. iv1 OPERATING RULES .................. 12 PANEL DESCRIPTION .......... 2 – 4  Panel description ............................ 2  Function display .............................. 3  Microphone ..................................... 4 3 BASIC OPERATION .............. 5 – 7  Channel selection ........................... 5  Microphone lock function ................ 6  Receiving and transmitting ............. 6  Call channel programming .............. 7  Channel names .............................. 7 4 DUALWATCH/TRI-WATCH ......... 8 Description ............................................ 8  Operation ........................................ 8 5 SCAN OPERATIONS ........... 9 – 10  Scan types ...................................... 9  Setting tag channels ..................... 10  Starting a scan .............................. 10 6 DSC OPERATION .............. 11 – 18  MMSI code programming ............. 11  MMSI code check ......................... 21  Position indication ......................... 11  Distress call .................................. 12  Transmitting DSC calls ................. 13  DSC individual ID ......................... 16  Receiving DSC calls ..................... 17 7 INTERCOM OPERATION ......... 19  Intercom operation ........................ 19 8 SET MODE ........................ 20 – 21  Set mode programming ................ 20  Set mode items ............................. 20 9 CONNECTIONS AND MAINTENANCE ................. 22 – 25  Supplied accessories .................... 22  Antenna ........................................ 22  Fuse replacement ......................... 22  Cleaning ....................................... 22  Connections .................................. 23  Mounting the transceiver .............. 24  Dimensions.................................... 25 10 TROUBLESHOOTING .............. 2611 CHANNEL LIST ........................ 2712 SPECIFICATIONS AND OPTIONS ............................ 28 – 29  Specifications ............................... 28  Options ......................................... 29 13 HM-127 REMOTE-CONTROL MICROPHONE ................... 30 – 41  Panel description .......................... 30  Function display ............................ 32  HM-127 supplied accessories ...... 33  Installation .................................... 34  Channel selection ......................... 36  Receiving and transmitting ........... 37  Lock functions ............................... 38  Display backlighting ...................... 38  Monitor function ............................ 38  Call channel programming ............ 39  Starting a scan .............................. 39  Setting tag channels ..................... 39  Dualwatch/Tri-watch operation ..... 40  Set mode programming ................ 40  Intercom operation ........................ 41  Channel names ............................ 41 TEMPLATE iii TABLE OF CONTENTS iv R WARNING! NEVER connect the transceiver to an AC outlet. This may pose a fire hazard or result in an electricshock. CAUTION: Changes or modifications to this device, not ex- pressly approved by Icom In…

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INSTRUCTION MANUAL iM402VHF MARINE TRANSCEIVER This device complies with Part 15 of the FCC rules. Operation is sub-ject to the following two conditions: (1) This device may not causeharmful interference, and (2) this device must accept any interferencereceived, including interference that may cause undesired operation. Icom requires the radio operator to meet theFCC Requirements for Radio FrequencyExposure. An omnidirectional antenna withgain not greater than 9 dBi must be mounted a minimum of 5 meters (measured from the lowest pointof the antenna) vertically above the main deck and all pos-sible personnel. This is the minimum safe separation dis-tance estimated to meet all RF exposure compliancerequirements. This 5 meter distance is based on the FCCSafe Maximum Permissible Exposure (MPE) distance of3 meters added to the height of an adult (2 meters) and isappropriate for all vessels. For watercraft without suitable structures, the antennamust be mounted so as to maintain a minimum of 1 metervertically between the antenna, (measured from the lowestpoint of the antenna), to the heads of all persons AND allpersons must stay outside of the 3 meter MPE radius.Do not transmit with radio and antenna when persons arewithin the MPE radius of the antenna, unless such per-sons (such as driver or radio operator) are shielded fromantenna field by a grounded metallic barrier. The MPERadius is the minimum distance from the antenna axis thatperson should maintain in order to avoid RF exposurehigher than the allowable MPE level set by FCC. FAILURE TO OBSERVE THESE LIMITS MAY ALLOWTHOSE WITHIN THE MPE RADIUS TO EXPERIENCERF RADIATION ABSORPTION WHICH EXCEEDS THEFCC MAXIMUM PERMISSIBLE EXPOSURE (MPE)LIMIT. IT IS THE RESPONSIBILITY OF THE RADIOOPERATOR TO ENSURE THAT THE MAXIMUM PER-MISSIBLE EXPOSURE LIMITS ARE OBSERVED ATALL TIMES DURING RADIO TRANSMISSION. THERADIO OPERATOR IS TO ENSURE THAT NOBYSTANDERS COME WITHIN THE RADIUS OF THEMAXIMUM PERMISSIBLE EXPOSURE LIMITS.Determining MPE Radius THE MAXIMUM PERMISSIBLE EXPOSURE (MPE)RADIUS HAS BEEN ESTIMATED TO BE A RADIUS OFABOUT 3M PER OET BULLETIN 65 OF THE FCC.THIS ESTIMATE IS MADE ASSUMING THE MAXIMUMPOWER OF THE RADIO AND ANTENNAS WITH AMAXIMUM GAIN OF 9dBi ARE USED FOR A SHIPMOUNTED SYSTEM. i WARNING RADIO OPERATOR WARNING ii If your vessel requires assistance, contact other vessels andthe Coast Guard by sending a distress call on Channel 16. Or, transmit your distress call using digital selective calling onChannel 7 READ ALL INSTRUCTIONS carefully and completely before using the transceiver. SAVE THIS INSTRUCTION MANUAL — This in- struction manual contains important operating instructionsfor the IC-M402. IMPORTANT USING CHANNEL 16DISTRESS CALL PROCEDURE1. “MAYDAY MAYDAY MAYDAY.”2. “THIS IS ...............” (name of vessel)3. Your call sign or other indication of the vessel (AND 9-digit DSC ID if you have one). 4. “LOCATED AT ...............” (your position)5. The kind of the distress and assistance required. 6. Any other information which might facilitate the rescue. USING DIGITAL SELECTIVE CALLING (Ch 70) DISTRESS CALL PROCEDURE1. While lifting up the switch cover, push and hold [DISTRESS] for 5 sec. until you hear 5 shortbeeps change to one long beep. 2. Wait for an acknowledgment from a coast station. • Channel 16 is automatically selected. 3. Push and hold [PTT], then transmit the appropriate information as at left. IN CASE OF EMERGENCY RADIO OPERATOR WARNING ................ iIMPORTANT ............................................. iiIN CASE OF EMERGENCY ...................... iiTABLE OF CONTENTS ........................... iiiCAUTIONS .............................................. iv1 OPERATING RULES .................. 12 PANEL DESCRIPTION .......... 2 – 4  Panel description ............................ 2  Function display .............................. 3  Microphone ..................................... 4 3 BASIC OPERATION .............. 5 –7  Channel selection ........................... 5  Microphone lock function ................ 6  Receiving and transmitting ............. 6  Call channel programming .............. 7  Channel names .............................. 7 4 DUALWATCH/TRI-WATCH ......... 8 Description ............................................ 8  Operation ........................................ 8 5 SCAN OPERATIONS ........... 9 – 10  Scan types ...................................... 9  Setting tag channels ..................... 10  Starting a scan .............................. 10 6 DSC OPERATION .............. 11– 18  MMSI code programming ............. 11  MMSI code check ......................... 11  Position indication ......................... 11  Distress call .................................. 12  Transmitting DSC calls ................. 13  DSC individual ID ......................... 16  Receiving DSC calls ..................... 17 7 INTERCOM OPERATION ......... 19  Intercom operation ........................ 19 8 SET MODE ........................ 20 – 21  Set mode programming ................ 20  Set mode items ............................. 20 9 CONNECTIONS AND MAINTENANCE ................. 22 – 25  Supplied accessories .................... 22  Antenna ........................................ 22  Fuse replacement ......................... 22  Cleaning ....................................... 22  Connections .................................. 23  Mounting the transceiver .............. 24  Dimensions.................................... 25 10 TROUBLESHOOTING .............. 2611 CHANNEL LIST ........................ 2712 SPECIFICATIONS AND OPTIONS ............................ 28 –29  Specifications ............................... 28  Options ......................................... 29 13 HM-127 REMOTE-CONTROL MICROPHONE ................... 30 – 41  Panel description .......................... 30  Function display ............................ 32  HM-127 supplied accessories ...... 33  Inst…

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American Telecommunications Certification Body Inc. 6731 Whittier Ave, McLean, VA 22101 January 17, 2001 ICOM AFJIC-M402 Masaaki, I have found the following items, which need to be addressed in this Application. 1.) Although this equipment is Categorically Excluded from routine RF exposure evaluation, it would be prudent to include an RF exposure calculation. 2.) FYI: The frequency of maximum response from the Audio Frequency Response test should carry over both the Modulation Limiting and Spurious Emissions at Antenna Terminals tests (not critical in this case). 3.) Pleas list the units for Field Strength of Spurious Radiation in ERP. Using exclusively dBc can be difficult and confusing. 4.) FYI: In the future, please provide a listing of all frequencies / channels for which this equipment is programmed in the United States in the body of the test report. 5.) It appears this equipment is capable of DSC operation. Please provide occupied bandwidth plot of this emission. 6.) Please provide necessary bandwidth calculations for voice and DSC operation in accordance with 2.201. Please get back to be as soon as possible. William H. Graff Examining Engineer Vice President of Engineering The items indicated above must be submitted before processing can continue on the above referenced application. Failure to provide the requested information within 30 days of the original e-mail date may result in application dismissal pursuant to Section 2.917(c). Correspondence should be considered part of the permanent submission and may be viewed from the Internet after a Grant of Equipment Authorization is issued. Please do not reply to this correspondence using the email reply button. In order for your response to be processed expeditiously, you must attach your answers to email correspondence. Reply to the examiner at the email address shown below. Also, please note that partial responses increase processing time and should not be submitted. Any questions about the content of this correspondence should be directed to the e-mail address listed below the name of the sender.

Bill Please find attached copy for m402 application Tastdata2.pdf: Test data for DSC occupied bandwidth measurement M402 updated Manual.pdf Guideline for Part 80 marine CH (See Page 27) MPE data Please wait, I believe typical end user uses 9dB gain whip antenna We will have some one to generate MPE report DSC Band width Bn=2*M+2*D M is maximum deviation = 5KHz D is maximum modulation = 2.1KHz Bn=2*2.1+2*5 =14.2 Emission Type is 14K2G2B With Best Regards Masaaki Takahashi Icom America Inc

1. Serial Number / FCC Part15 Sticker. 2.Picture of tranciever showing location of the sticker

Theory of Operation MAIN unit 1.Receive Block 1-1 Antenna Switch Radio frequency signals input from the antenna circuit pass through the LPF (made up of L13, L14, C107~109 and C111), and are routed to the RF Amp after passing through the antenna switch, (made up of D10, D15, L15 and C197~C198). 1-2 RF Amp Radio frequency signals from the antenna switch pass through the 2 nd stage BPF (made up of D19, L16, L17, L19, L20, C198~C204 and C206~C210), and are input to Q27 via C211. The unwanted bandwidth signals of the Radio frequency signal is eliminated in the 3 rd stage BPF (made up of D20, L21, L22, L24, L25, C213~C218 and C220~C224). The signal that has passed through the BPF is input to the 1 st Mixer Q1, is mixed with the 1 st Lo, and is output as the 1 st IF (21.7 MHz) signal. 1-3 IF Amp The signal from Q1 is further filtered for unwanted bandwidth signals in the crystal filters FI1 and FI2. The signal amplified in the Q2 IF Amp is input to pin 16 of IC1. IC1 has a 2 nd Local Oscillator, 2 nd Mixer, a limiter and a Quadrature Detector inside it. The 21.25 MHz 2 nd Lo included in the IC2 crystal oscillation buffer (pin 17) is input to IC1 pin 2 and mixed with the 1 st IF, then a 450 kHz 2 nd IF signal is output to pin 3. The components of the 450 kHz signal only are selected by the ceramic filter FI3, and re-input to pin 5, then after detection by the Quadrature Detector, is output as an AF signal from pin 9.In the Quadrature Detector, X1 and R14 are used as a Phase Delay and as an unadjusted detection circuit. 1-4 Squelch The signal output from pin 9 and split at C52 has its amplitude adjusted by R16, and is input to the noise amp. The noise component only is amplified in the noise amp (made up of R18~R20, C27 and C28) inside the internal amp of IC1, and is output as DC voltage from the internal noise detection circuit. The noise detection output voltage is input to the LOGIC unit’s IC1 A/D board, and then is compared with the voltage from the VR-B unit to control the squelch. 1-5 AF Amp The signal output from pin 9 is mixed with a frequency characteristic of -6 dB /oct from the de-emphasis circuit that is made up of R101 and C140. It passes through IC5 where the amplitude is adjusted by R1, and then is input to IC9. IC9 outputs about 5W at a 4-ohm load in the AF Power Amp. The audio signal output from IC9 is relayed through either the internal or external speaker. 2.Transmission Block 2-1 Mic Amp, IDC and Splatter Filter The audio signal input to the mic is filtered at +6 dB/oct characteristics by the pre-emphasis circuit (made up of R121 and C159). It is amplified in IC7C, and for signals that require amplitude limitation, signal components over 3kHz are eliminated by the splatter filter (IC7D). Finally, the signal passes through R138, which adjusts for maximum modulation, and is added to the VCO input modulation and begins FM modulation. 2-2 Driver Amp The output from the VCO passes through the RX/TX switchover type diode switch D6, and is amplified by Q10 and Q11. Q11 is the Driver Amp that amplifies the signal to the necessary level for input to IC3, and in the collector, supplies the voltage from the APC circuit that keeps the output constant by adjusting to the changes in the output voltage. Also, Q14 controls the Q15 base voltage and Q16 comparative voltage respectively by the TMUT signal from the CPU. And while preventing transmission of unwanted waves at TX startup, also prevents transmission in the case the PLL becomes unlocked. 2-3 RF Power Amp IC3 is a power module that generates about 35W of output from a 300mW input, and is controlled by the output of pin 2. 2-4 APC The IC3 output voltage that is made by both L12 terminals is detected in D8 and D9, and input to Q15. Q15 output changes the Q12 collector’s voltage to maintain a stable voltage output. 3.VCO, PLL Block 3-1 VCO When transmitting, the varactor diodes D3 and D5, or L5, C52 and C53 decide the oscillating frequency, and that is changed to FM modulation by making D2 into an opposite bias state. When receiving, D2 is in an ON condition and passes through C52, and the oscillated frequency shifts to low to make an AC like ground. After oscillation at Q5 and Q6, the signal passes through the buffer amp Q7 and Q9 and is output. 3-2 PLL IC2 is a two system dual PLL IC that contains a prescaler, programmable counter, divider phase detector and charge pump. The reference frequency of 21.25 MHz is oscillated from X2. When transmitting, the PLL loop is made from the loop filter and charge pump that comes from R29~R31 and C41~C42. 4.Power Circuit Block The 13.8V input from the power terminal passes through the VR-A unit’s R1 switch as an HV line, and is re-applied as an HVS line to the MAIN unit. When 13.8V is put to the HVS line, it is converted to 5V at the three terminal regulator IC8. Q24 and Q25 controlled by the SEND signal from the CPU, controls the transmit part 5V (T5), and Q22 and Q23 controlled by the RCV signal from the CPU, controls the receive part 5V (R5). 5.WX Alert Decoder Block The AF signal output from IC1 is input to the CPU (Logic unit IC1) A/D port via the LPF Q28, and the 1050 Hz signal is detected by decode software. 6.DSC Decoder Block The AF signal output from IC1 is input to the FSK decoder at pin 2 in IC6. The decode is output from pin 7 and input to the CPU (Logic unit IC1). LOGIC unit 1. CPU IC1 is an 8-bit single chip microcomputer, and it contains the LCD driver, Serial I/O, timer, A/D converter, programmable I/O, ROM and RAM. 2. System Clock Oscillating Circuit X1 is IC1’s system clock (9.830 MHz). 3. Reset Circuit IC6 is a special reset IC, and it outputs a low pulse to the CPU reset terminal when the power is turned ON. 4. ICF3/HM-127 Communication Interface Circuit IC5 switches over the ICF3/HM-127 line. When communicating with the HM-127, IC5’s 2 and 6 pins become “H”, and perform data communication depending on the RRXD and RTXD lines. When communication with the ICF3 format, IC5’s 2 and…

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Adjustment for IC-M402 Preparation Connect the DC Power Supply : Voltage 13.8V, Current: More than10A Lock Voltage 1. Check that lock voltage(CP1) is 1.8±0.5V when receiving Ch.16. 2. Check that lock voltage(CP1) is 1.6±0.5V when transmittiing Ch.16. TX Output Power Adjustment & Check 1. Connect power meter to the ANT terminal, and set to Ch.16. 2. At High power,adjust R71 to Output power 25W. 3. Check for following range within band High Power 24W-25W Low Power 0.4W-1.2W Reference Adjustment 1. Connect a frequency counter via the ATT to the ANT terminal. 2. Set C36 so that the frequency is Within 156.800 MHz ±500Hz Modulation Adjustment & Check 1. Connect a linear detector via ATT to the ANT,and set frequency to Ch.16. 2. Set the linear detector to the following: HPF OFF LPF 20kHz De-emphasis OFF Level Meter (P-P)/2 3. Supply the following signal to the MIC terminal from the AG 45mV at 1kHz 4. Set to TX, then set the frequency deviation to ±4.3kHz by R138(MOD). 5. Lower the AG level so that the modulation is ±3.0 kHz, and check that the level then is 2.3-9.0mV. TX S/N Check 1.Connect a linear detector via ATT to the ANT,and set frequency to Ch.16. HPF OFF LPF 20kHz De-emphasis OFF Level Meter (P-P)/2. 2.When transmitting while the modulation frequency is 1 kHz, and deviation is More than 3.5 kHz,check that the S/N is more than 40 dB during non-modulated transmit. Checking TX Spurious 1. Connect a spectrum analyzer via the ATT to the ANT terminal and perform a non-modulated transmission. 2. Check More than that higher order spurious is within the value of more than 70 dBc (Hi power). Checking Receive 1. Connect a signal generator and set to the following; FREQ 156.8 MHz (Ch.16) MOD FREQ 1kHz DEV ±3.5 kHz LEVEL +10 dBu 2. Connect a distortion meter and a 4 ohm load to the external speaker. 3. Check the 12 dB SINAD value. Less than -10 dBu. 4. Check the 12 dB SINAD value in the receive band. Less than –10 dBu. Checking AF Output 1. Set the SG output to +60 dBu in the same state as RX adjustment. 2. Set the AF volume so that the distortion meter reads 10%. 3. Check that the AF output is more than 3.5W at this point . Checking RX S/N 1. Set the SG output to +60 dBu in the same state as RX adjustment. 2. Adjust to 50% of rated AF Output, then check that the AF output at this point and the AF output S/N with the modulation OFF,are more than 40dB. Squelch Setting 1. Set the SG output to -13 dBu in the same state as RX adjustment. 2. Connect a DC voltage meter to CP2, and adjust R16 to be 1V. Checking Howling 1. Set the SG output to +60 dBu in the same state as RX adjustment, to non-modulation. 2.Remove the external speaker,and check for howling. Checking DSC Decode 1. Input a test signal to the ANT terminal of 1300 Hz/Dev 2.6 kHz, and 2100 Hz/Dev 4.2 kHz, at a 50% duty cycle. FREQ 156.525 MHz (Ch.70) LEVEL +30 dBu 2. Connect the CP3 to an oscilloscope and check that the wave shape is at a 50% duty cycle. Checking DSC Encode 1. Connect a linear detector via ATT to the ANT terminal and set to Ch.70. 2. Set the linear detector to the following: HPF OFF LPF 20kHz De-emphasis OFF Level Meter (P-P)/2 3. Set the unit to Adjust Mode, and check the frequency deviation in TX. DSC Hi 2.6 kHz±10% DSC Low 4.2 kHz±10% 4. Prepare a unit that can receive a distress code and check that the DSC receives the signal from the M402.

Received from Kwok Chan Tue 01/02/2001 9:49 AM If it meets the antenna height and other requirements in Table 1 of 1.1307, it would be considered as fixed. Otherwise, it would be mobile. Whether the antenna goes on a small boat or a large ship could play a role in the determination of fixed or mobile. If the device puts out 25 W, that output should be considered. Except for "Ship Earth Stations", other Part 80 transmitters are categorically excluded for routine RF exposure evaluation. If it qualifies or not excluded by the TCB Exclusion List under categorically excluded fixed, mobile or portable devices, and no RF exposure test data has been submitted, a TCB may approved such filings >>> "William Graff" <[email protected]> 12/27/00 09:16PM >>> Ray, Kwok, Can a TCB approve a traditional 1W/25W, 156.025 to 157.425 MHz Part 80 Marine transceiver? The traditional EMC test report doesn't bother me, but the RF exposure classification does. Can Ship Stations be classified, for the purposes of RF evaluation, as Fixed Transmitters? The argument is that antennas associated with these transmitters are always located on the highest part of the boat, easily 2 meters or better away from all persons. Since 1W is typical for port operations and 25W usually reserved for longer range or emergency operations, should the evaluation be done at 1W or 25W? Or have I just misread the whole section and should I have FCC do the entire Equipment Authorization? Bill Graff AmericanTCB

FCC RF EXPOSURE STATEMENT When installed as directed, this equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment must be installed and operated with a fix-mounted antenna with a minimum of 6 meters of separation distance between the antenna and any person’s body during normal operation. FCC 1.1310:- The criteria listed in the following table shall be used to evaluate the environmental impact of human exposure to radio-frequency (RF) radiation as specified in 1.1307(b). Calculation Method of RF Safety Distance: S = PG/4Πr 2 = EIRP/4Πr 2 ==> r = PG/4ΠS = EIRP/4ΠS Where:P: power input to the antenna in mW EIRP: Equivalent (effective) isotropic radiated power. S: power density mW/cm 2 G: numeric gain of antenna relative to isotropic radiator r: distance to center of radiation in cm P = 44.47 dBm = 10 44.47/10 mW (max. power measured at 157.42 MHz) G = 9 dBi = 10 9/10 numeric S = 0.2 mW/cm 2 (refer to table above, (B) Limits for General Population/Uncontrolled Exposure) r = PG/ 4ΠS = (10 44.47/10 * 10 9/10 ) / (4Π(0.2)) = 297.43 cm So, the minimum safety distance for 9dBi whip antenna is approximately 300 cm or 3 meters

FCC RF EXPOSURE STATEMENT When installed as directed, this equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment must be installed and operated with a fix-mounted antenna with a minimum of 6 meters of separation distance between the antenna and any person’s body during normal operation. FCC 1.1310:- The criteria listed in the following table shall be used to evaluate the environmental impact of human exposure to radio-frequency (RF) radiation as specified in 1.1307(b). Calculation Method of RF Safety Distance: S = PG/4Πr 2 = EIRP/4Πr 2 ==> r = PG/4ΠS = EIRP/4ΠS Where:P: power input to the antenna in mW EIRP: Equivalent (effective) isotropic radiated power. S: power density mW/cm 2 G: numeric gain of antenna relative to isotropic radiator r: distance to center of radiation in cm P = 44.47 dBm = 10 44.47/10 mW (max. power measured at 157.42 MHz) G = 9 dBi = 10 9/10 numeric S = 0.2 mW/cm 2 (refer to table above, (B) Limits for General Population/Uncontrolled Exposure) r = PG/ 4ΠS = (10 44.47/10 * 10 9/10 ) / (4Π(0.2)) = 297.43 cm So, the minimum safety distance for 9dBi whip antenna is approximately 300 cm or 3 meters

Icom requires the radio operator to meet theFCC Requirements for Radio FrequencyExposure. An omnidirectional antenna withgain not greater than 9 dBi must be mounted a minimum of 5 meters (measured from the lowest pointof the antenna) vertically above the main deck and all pos-sible personnel. This is the minimum safe separation dis-tance estimated to meet all RF exposure compliancerequirements. This 5 meter distance is based on the FCCSafe Maximum Permissible Exposure (MPE) distance of3 meters added to the height of an adult (2 meters) and isappropriate for all vessels. For watercraft without suitable structures, the antennamust be mounted so as to maintain a minimum of 1 metervertically between the antenna, (measured from the lowestpoint of the antenna), to the heads of all persons AND allpersons must stay outside of the 3 meter MPE radius.Do not transmit with radio and antenna when persons arewithin the MPE radius of the antenna, unless such per-sons (such as driver or radio operator) are shielded fromantenna field by a grounded metallic barrier. The MPERadius is the minimum distance from the antenna axis thatperson should maintain in order to avoid RF exposurehigher than the allowable MPE level set by FCC. FAILURE TO OBSERVE THESE LIMITS MAY ALLOWTHOSE WITHIN THE MPE RADIUS TO EXPERIENCERF RADIATION ABSORPTION WHICH EXCEEDS THEFCC MAXIMUM PERMISSIBLE EXPOSURE (MPE)LIMIT. IT IS THE RESPONSIBILITY OF THE RADIOOPERATOR TO ENSURE THAT THE MAXIMUM PER-MISSIBLE EXPOSURE LIMITS ARE OBSERVED ATALL TIMES DURING RADIO TRANSMISSION. THERADIO OPERATOR IS TO ENSURE THAT NOBYSTANDERS COME WITHIN THE RADIUS OF THEMAXIMUM PERMISSIBLE EXPOSURE LIMITS.Determining MPE Radius THE MAXIMUM PERMISSIBLE EXPOSURE (MPE)RADIUS HAS BEEN ESTIMATED TO BE A RADIUS OFABOUT 3M PER OET BULLETIN 65 OF THE FCC.THIS ESTIMATE IS MADE ASSUMING THE MAXIMUMPOWER OF THE RADIO AND ANTENNAS WITH AMAXIMUM GAIN OF 9dBi ARE USED FOR A SHIPMOUNTED SYSTEM. i WARNING RADIO OPERATOR WARNING

PAGE No. 1 of 34 ENGINEERING REPORT IC-M402 ICOM INCORPORATED PAGE No. 2 of 34 GENERAL INFORMATION Receivers Frequency Ra…

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