AFJIC-F521VHF FM Transceiver

i EXPLICIT DEFINITIONS R WARNING! NEVER connect the transceiver to an AC outlet. This may pose a fire hazard or result in an electricshock. NEVER connect the transceiver to a power source of more than 16 V DC such as a 24 V battery. This connection will ruinthe transceiver. NEVER cut the DC power cable between the DC plug and fuse holder. If an incorrect connection is made after cutting,the transceiver might be damaged. NEVER place the transceiver where normal operation of the vehicle may be hindered or where it could cause bodilyinjury. NEVER allow children to touch the transceiver. NEVER expose the transceiver to rain, snow or any liquids. USE supplied microphone only. Other microphones have different pin assignments and may damage the transceiver. DO NOT use or place the transceiver in areas with tem- CAUTIONS 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. READ ALL INSTRUCTIONS carefully and complete- ly before using the transceiver. SAVE THIS INSTRUCTION MANUAL — This instruction manual contains important operating instructions forthe IC-F521 VHF TRANSCEIVER and IC-F621 UHF TRANSCEIVER . IMPORTANT ii peratures below –22°F (–30°C) or above +140°F (+60°C) or,in areas subject to direct sunlight, such as the dashboard.AVOID operating the transceiver without running the vehi- cle’s engine. The vehicle’s battery will quickly run out if thetransceiver is in transmission while the vehicle’s engine OFF.AVOID placing the transceiver in excessively dusty envi- ronments. AVOID placing the transceiver against walls. This will obstruct heat dissipation. AVOID the use of chemical agents such as benzine or alcohol when cleaning, as they damage the transceiver sur-faces. BE CAREFUL! The transceiver will become hot when operating continuously for long periods.For U.S.A. onlyCAUTION: Changes or modifications to this transceiver, not expressly approved by Icom Inc., could void your authority tooperate this transceiver under FCC regulations. TABLE OF CONTENTSIMPORTANT .................................................................................... iEXPLICIT DEFINITIONS ................................................................. iCAUTIONS ....................................................................................... iTABLE OF CONTENTS .................................................................. ii1 PANEL DESCRIPTION ........................................................ 1–6■ Front panel ............................................................................ 1 ■ Function display .................................................................... 2 ■ Programmable function keys ................................................ 3 2 OPERATION ...................................................................... 7–10 ■ Turning power ON ................................................................ 7 ■ Channel selection ................................................................. 7 ■ Receiving and transmitting ................................................... 8 D Transmitting notes .......................................................... 8 D Tx code channel selection .............................................. 9 D Tx code number selection .............................................. 9 D DTMF transmission ........................................................ 9 D Scrambler function ......................................................... 9 D User set mode .............................................................. 10 3 OPTIONAL SmarTrunk II™ OPERATION ....................... 11–12■ SmarTrunk II™ and conventional modes ............................ 11 ■ SmarTrunk II™ operation .................................................... 11 4 CONNECTION AND MAINTENANCE ............................. 13–18 ■ Rear panel and connection ................................................. 13 ■ Supplied Accessories ......................................................... 14 ■ Mounting the transceiver ..................................................... 15 D Inverting the Front panel .............................................. 15 D Mounting the Transceiver ............................................. 16 ■ Optional UT-105/UT-108 installation ................................... 17 ■ Optional UT-109/UT-110 installation ................................... 17 ■ Optional OPC-617 installation ............................................. 18 ■ Antenna ............................................................................... 18 ■ Fuse replacement ............................................................... 18 ■ Cleaning ............................................................................. 18 5 OPTIONS ............................................................................... 19 1 1 PANEL DESCRIPTION u y t r e w q ■ Front panel q AF VOLUME CONTROL KNOB ➥ Rotate the knob to adjust the audio output level. • Minimum audio level is pre-programmed. w LEFT UP/DOWN [ ∫ ] / [ √ ] KEYS ➥ One of several functions can be programmed by yourDealer. (Same as [P0] to [P4] keys) e FUNCTION DISPLAY ➥ Displays variety of information, such as an operating chan-nel number/name, 2/5tone code, DTMF numbers and audi-ble condition, etc. NOTE: The above functions depend on pre-programming. r RIGHT UP/DOWN [ ] / [ ] KEYS ➥ Push to select the operating channel. ➥ Can be programmed for one of several functions by yourDealer. (Same as [P0] to [P4] keys) 2 1 PANEL DESCRIPTION t DEALER-PROGRAMMABLE KEYS [P0] to [P4] ➥ Desired functions can be programmed independently byyour Dealer. y POWER SWITCH [POWER] ➥ Push to turns the power ON and OFF. • The following functions are available at power ON as options: - Automatic scan start- Password prompt- Set mode u MICROPHONE CONNECTOR ➥ Connect the supplied microphone or optional DTMF micro…

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June 05, 2002 FEDERAL COMMUNICATIONS COMMISSION 7435 Oakland Mills Road Columbia, MD 21046 USA Subject: Type Acceptance Application under FCC 47 CFR, Parts 2 & 90 - Licensed Non-Broadcast Radio Transceivers Operating in the Frequency Band 136-174 MHz (12.5 kHz and 25 kHz Channel Spacings). Product: VHF FM Transceiver Model: IC-F521 FCC ID: AFJIC-F521 Dear Sir/Madam, As appointed agent for Icom America, 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 Vice President - Engineering Encl. 31040/SIT A96/TH/0093 46390-2049 200093-0 2 00-034 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 La bs

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RECEIVER CIRCUITS ANTENNA SWITCHING CIRCUIT Received signals are passed through the low-pass filter (L1, L2, L3, C1, C2, C6, C7, C8). The filtered signals are applied to the antenna switching circuit (D3, D5, D6). The antenna switching circuit functions as a low-pass filter while receiving. However, its impedance becomes very high while D3, D5 and D6 are turned ON. Thus transmit signals are blocked from entering the receiver circuits. The antenna switching circuit employs a diode switching system. The passed signals are then applied to the RF amplifier circuit. RF CIRCUIT The RF circuit amplifies signals within the range of frequency coverage and filters out-of-band signals. The signals from the antenna switching circuit are amplified at the RF amplifier (Q2) after passing through the tunable band-pass filter of 2 steps (D8, L7, D4, L8). The amplified signals are applied to the 1st mixer circuit (Q3) after out-of-band signals are suppressed at the tunable band-pass filter of 2 steps (D9, L54, D10, L11). Varactor diodes are employed at the band-pass filters that track the filters and are controlled by the CPU (IC20) via the expander IC (IC7) using T1-T4 signals. These diodes tune the center frequency of an RF pass-band for wide bandwidth receiving and good image response rejection. 1ST MIXER AND 1ST IF CIRCUITS The 1st mixer circuit converts the received signal to a fixed frequency of the 1st IF signal with a PLL output frequency. By changing the PLL frequency, only the desired frequency will be passed through a crystal filter at the next stage of the 1st mixer. The signals from the RF circuit are mixed at the 1st mixer (Q3) with a 1st LO signal coming from the VCO circuit to produce a 46.35 MHz 1st IF signal. The 1st IF signal is applied to crystal filter (FI1) to suppress out-of-band signals. The filtered 1st IF signal is applied to the IF amplifier (Q4), then applied to the 2nd mixer circuit (IC1, pin 16). 2ND IF AND DEMODULATOR CIRCUITS The 2nd mixer circuit converts the 1st IF signal to a 2nd IF signal. A double conversion superheterodyne system (which converts receive signals twice) improves the image rejection ratio and obtains stable receiver gain. The 1st IF signal from the IF amplifier is applied to the 2nd mixer section of the FM IF IC (IC1, pin 16), and is mixed with the 2nd LO signal to be converted to a 450 kHz 2nd IF signal. The FM IF IC contains the 2nd mixer, limiter amplifier, quadrature detector and active filter circuits. A 2nd LO signal (45.9 MHz ) is produced at the PLL circuit by three times reference frequency. The 2nd IF signal from the 2nd mixer (IC1, pin 3) passes through a ceramic filter (FI2) to remove unwanted heterodyned frequencies. It is then amplified at the limiter amplifier (IC1, pin 5) and applied to the quadrature detector (IC1, pins 10, 11) to demodulate the 2nd IF signal into AF signals. AF CIRCUIT AF signals from the FM IF IC (IC1 pin 9) are applied to the AF filter circuit (IC14, pins 2-5). The output signals from pin 2 are applied to the LPF (Internal IC14). The output signals from pin38 are applied to the AF amplifier (IC18, pin 3) after being passed through the VOL IC (IC6) control CPU (IC20). The applied AF signals are amplified at the AF power amplifier circuit (IC8, pin 1) to obtain the specified audio level. The amplified AF signals, output from pin 4, are applied to the internal speaker when no plug is connected to the external speaker jack. SQUELCH CIRCUIT A squelch circuit cuts out AF signals when no RF signals are received. By detecting noise components in the AF signals, the squelch switches the AF mute switch. A portion of the AF signals from the FM IF IC (IC1, pin9) are applied to the active filter section (IC1, pin 8) where noise components are amplified and detected with an internal noise detector. The squelch level adjustment pot (IC6, pin 23) is connected in parallel to the active filter input (pin 8) to control the input noise level. The active filter section amplifies noise components. The filtered signals are rectified at the noise detector section and converted into "NOIS" (pulse type) signals at the noise comparator section. The "NOIS" signal is applied to the CPU (IC20, pin 37). The CPU detects the receiving signal strength from the number of the pulses, and outputs an "AFON" signal from CPU (IC20) pin18. And CPU (IC20) controls the mute switch (Internal IC14) to cut the AF signal line. TRANSMITTER CIRCUITS MICROPHONE AMPLIFIER CIRCUIT AF signals from Front unit are applied to the deviation adjustment pot (IC6, pin9). The microphone amplifier circuit amplifies audio signals with +6 dB/octave pre-emphasis characteristics from the IC6 to a level needed for the modulation circuit. The AF signals from the microphone are applied to the microphone amplifier circuit (IC14, pins 12, 13). The amplified AF signals are passed through the low-pass filter circuit (Internal IC14 and IC21). MODULATION CIRCUIT The modulation circuit modulates the VCO oscillating signal (RF signal) using the microphone audio signal. The audio signals change the reactance of a diode (D18) to modulate an oscillated signal at the VCO circuit (Q14). The oscillated signal is amplified at the buffer-amplifiers (Q11, Q10), then applied to the T/R switching circuit (D14, D15). DRIVE/POWER AMPLIFIER CIRCUITS The signal from the VCO circuit passes through the T/R switching circuit (D14,D15) and is amplified at the buffer (Q9), drive (Q8) and power amplifier (IC3) to obtain 50 W of RF power (at 13.6 V DC). The amplified signal passes through the antenna switching circuit (D3), and low-pass filter and is then applied to the antenna connector. Power control port (VCC1) of power amplifier (IC3) is controlled by the APC circuit. POWER DETECTOR CIRCUIT The power detector circuit (D1,11) detects the transmit power output level and converts it to DC voltage. The detected signal is applied to the APC circuit. APC CIRCUIT The signal output from the power detector circuit (D1,1…

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20 0 20 6 SAFETY TRAINING INFORMATION Your Icom radio generates RF electromag-netic energy during transmit mode. Thisradio is designed for and classified as“Occupational Use Only”, meaning it mustbe used only during the course of employ-ment by individuals aware of the hazards, and the ways to minimize such hazards. This radio isNOT intended for use by the “General Population” in an uncontrolled environment.• For compliance with FCC and Industry Canada RF Exposure Requirements, the transmitter antenna installationshall comply with the following two conditions: 1. The transmitter antenna gain shall not exceed 0 dBi.2. IC-F521: The transmitter antenna is required to be located outsideof a vehicle and kept at a separation distance of 63 cen-timeters or more between the transmitter antenna of thisdevice and persons during operation. 3. IC-F621: The transmitter antenna is required to be located outsideof a vehicle and kept at a separation distance of 50 cen-timeters or more between the transmitter antenna of thisdevice and persons during operation. To ensure that your exposure to RF elec-tromagnetic energy within the FCCallowable limits for occupational use,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 causeyou to exceed FCC RF exposure limits. A proper antenna isthe antenna supplied with this radio by the manufacturer oran antenna specifically 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 can cause FCC RF exposure compliance requirements tobe exceeded. The radio is transmitting when the “TX indica-tor” lights red. You can cause the radio to transmit by press-ing the “PTT” switch. Electromagnetic Interference/CompatibilityDuring transmissions, your Icom radio generates RF energythat can possibly cause interference with other devices orsystems. To avoid such interference, turn off the radio inareas where signs are posted to do so. DO NOT operate the transmitter in areas that are sensitive to electromagnetic radi-ation such as hospitals, aircraft, and blasting sites. WARNING CAUTION

VHF FM Transceiver Model No.: IC-F521 FCC ID: AFJIC-F521 Applicant: Icom Incorporated 1-1-32, Kamiminami Hirano-ku, Oaska Japan, 547-0003 Tested in Accordance With Federal Communications Commission (FCC) 47 CFR, Parts 2 & 90 Licensed Non-Broadcast Radio Transceivers Operating in the Frequency Band 136-174 MHz (12.5 kHz and 25 kHz Channel Spacings) UltraTech's File No.: ICOM-038FTX This Test report is Issued under the Authority of Tri M. Luu, Professional Engineer, Vice President of Engineering UltraTech Group of Labs Date: June 05, 2002 Report Prepared by: Tri Luu Tested by: Hung Trinh, RFI/EMI Technician Issued Date: June 05, 2002 Test Dates: May 20-29, 2002 The results in this Test Report apply only to the sample(s) tested, and the sample tested is randomly selected. 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] 47 CFR, Parts 2 & 90 - LICENSED NON-BROADCAST RADIO TRANSCEIVERS Contents i VHF FM Transceiver, Models IC-F521 FCC ID: AFJIC-F521 ULTRATECH GROUP OF LABS File #: ICOM-038FTX 3000 Bristol Circle, Oakville, Ontario, Canada L6H 6G4 June 05, 2002 Tel. #: 905-829-1570, Fax. #: 905-829-8050, Email: [email protected] , Website: http://www.ultratech-labs.com ƒ Accreditation: FCC & NVLAP (USA), ACA (Australia), VCCI (Japan), ITI (UK), ACC-LAB (Canada, Europe/APEC/Canada MRA) ƒ All test results contained in this engineering test report are traceable to National Institute of Standards and Technology (NIST) TABLE OF CONTENTS EXHIBIT 1. SUBMITTAL CHECK LIST...................................................................................................................... 1 EXHIBIT 2. INTRODUCTION ....................................................................................................................................... 2 2.1. SCOPE......................................................................................................................................................................... 2 2.2. RELATED SUBMITTAL(S)/GRANT(S) ............................................................................................................................. 2 2.3. NORMATIVE REFERENCES........................................................................................................................................... 2 EXHIBIT 3. PERFORMANCE ASSESSMENT ............................................................................................................ 3 3.1. CLIENT INFORMATION ........................................................................................................................................... 3 3.2. EQUIPMENT UNDER TEST (EUT) INFORMATION............................................................................................................ 3 3.3. EUT’S TECHNICAL SPECIFICATIONS............................................................................................................................. 4 3.4. LIST OF EUT’S PORTS................................................................................................................................................... 5 EXHIBIT 4. EUT OPERATION CONDITIONS AND CONFIGURATIONS DURING TESTS ............................. 6 4.1. CLIMATE TEST CONDITIONS......................................................................................................................................... 6 4.2. OPERATIONAL TEST CONDITIONS & ARRANGEMENT FOR TEST SIGNALS..................................................................... 6 4.3. TEST SAMPLE SETUP.................................................................................................................................................... 7 EXHIBIT 5. SUMMARY OF TEST RESULTS ............................................................................................................. 8 5.1. LOCATION OF TESTS.................................................................................................................................................... 8 5.2. APPLICABILITY & SUMMARY OF EMC EMISSION TEST RESULTS................................................................................... 8 5.3. MODIFICATIONS INCORPORATED IN THE EUT FOR COMPLIANCE PURPOSES.................................................................. 8 5.4. DEVIATION OF STANDARD TEST PROCEDURES............................................................................................................. 8 EXHIBIT 6. MEASUREMENTS, EXAMINATIONS & TEST DATA FOR EMC EMISSIONS............................. 9 6.1. TEST PROCEDURES...................................................................................................................................................... 9 6.2. MEASUREMENT UNCERTAINTIES................................................................................................................................. 9 6.3. MEASUREMENT EQUIPMENT USED...............................................................................................................................9 6.4. ESSENTIAL/PRIMARY FUNCTIONS AS DECLARED BY THE MANUFACTURER................................................................... 9 6.5. RF POWER OUTPUT @ FCC 2.1046 & 90.205............................................................................................................. 10 6.5.1. Limits @ FCC 90.205 ...................................................................................................................................... 10 6.5.2. Method of Measurements................................................................................................................................. 10 6.5.3. Test Equipment List ......................................................................................................................................... 10 6.5.4. Test Arrangement ..........................................................…

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Annex 1 - Plots of Measurements Plot # 1 99 % Occupied Bandwidth Annex 1 - Plots of Measurements Plot # 2 99 % Occupied Bandwidth Annex 1 - Plots of Measurements Plot # 3 99 % Occupied Bandwidth Annex 1 - Plots of Measurements Plot # 4 99 % Occupied Bandwidth Annex 1 - Plots of Measurements Plot # 5 99 % Occupied Bandwidth Annex 1 - Plots of Measurements Plot # 6 99 % Occupied Bandwidth Annex 1 - Plots of Measurements Plot # 7 Emission Mask D Annex 1 - Plots of Measurements Plot # 8 Emission Mask D Annex 1 - Plots of Measurements Plot # 9 Emission Mask D Annex 1 - Plots of Measurements Plot # 10 Emission Mask D Annex 1 - Plots of Measurements Plot # 11 Emission Mask D Annex 1 - Plots of Measurements Plot # 12 Emission Mask D Annex 1 - Plots of Measurements Plot # 13 Emission Mask B Annex 1 - Plots of Measurements Plot # 14 Emission Mask B Annex 1 - Plots of Measurements Plot # 15 Emission Mask B Annex 1 - Plots of Measurements Plot # 16 Emission Mask B Annex 1 - Plots of Measurements Plot # 17 Emission Mask B Annex 1 - Plots of Measurements Plot # 18 Emission Mask B Annex 1 - Plots of Measurements Plot # 19 Spurious Emissions at Antenna Terminals Annex 1 - Plots of Measurements Plot # 20 Spurious Emissions at Antenna Terminals Annex 1 - Plots of Measurements Plot # 21 Spurious Emissions at Antenna Terminals Annex 1 - Plots of Measurements Plot # 22 Spurious Emissions at Antenna Terminals Annex 1 - Plots of Measurements Plot # 23 Spurious Emissions at Antenna Terminals Annex 1 - Plots of Measurements Plot # 24 Spurious Emissions at Antenna Terminals Annex 1 - Plots of Measurements Plot # 25 Spurious Emissions at Antenna Terminals Annex 1 - Plots of Measurements Plot # 26 Spurious Emissions at Antenna Terminals Annex 1 - Plots of Measurements Plot # 27 Spurious Emissions at Antenna Terminals Annex 1 - Plots of Measurements Plot # 28 Spurious Emissions at Antenna Terminals Annex 1 - Plots of Measurements Plot # 29 Spurious Emissions at Antenna Terminals Annex 1 - Plots of Measurements Plot # 30 Spurious Emissions at Antenna Terminals

Annex 1 - Plots of Measurements Plot # 7 Emission Mask D Annex 1 - Plots of Measurements Plot # 8 Emission Mask D Annex 1 - Plots of Measurements Plot # 9 Emission Mask D Annex 1 - Plots of Measurements Plot # 10 Emission Mask D Annex 1 - Plots of Measurements Plot # 11 Emission Mask D Annex 1 - Plots of Measurements Plot # 12 Emission Mask D

ANNEX 2 - TEST SETUP PHOTOGRAPHS (Radiated Emissions at 3 Meters Distance) Icom America, Inc. VHF FM Transceiver, Model IC-F521 FCC ID: AFJIC-F521 A2 - 1 ANNEX 2 - TEST SETUP PHOTOGRAPHS (Radiated Emissions at 3 Meters Distance) Icom America, Inc. VHF FM Transceiver, Model IC-F521 FCC ID: AFJIC-F521 A2 - 2