BGAFR540Family Radio Transceiver

Safety Information ! Your wireless handheld portable transceiver is a low power radio. When the PTT button is pushed it sends out radio frequency (RF) signals. In August 1996, the Federal Communications Commissions (FCC) adopted RF exposure guidelines with safety levels for hand-held wireless phones. Important: To maintain Compliance with the FCC’s RF exposure guidelines, if you wear a handset on your body use only the Audiovox supplied carrying case, holster or other body-worn accessory for this product and ensure that the antenna is at least 1 inch (2.5 centimeters) from your body when transmitting. Use only the supplied antenna. Unauthorized antennas, modifications, or attachments could damage the transmitter and may violate FCC regulations. Normal Position: Hold the transmitter approximately 1” from your face and speak in a normal voice, with the antenna pointed up and away.

TIMCO ENGINEERING INC. 849 NW State Road 45 Newberry, Florida 32669 http://www.timcoengr.com 888.472.2424 F 352.472.2030 email: [email protected] 6/26/2000 Mr. Andy Leimer FCC SUBJECT: Audiovox Model No. FR-540 REFERENCE: TC97816 This letter is to advise you that the power output should have been 360mW on the 731 form. Also attached is a revised tuning procedure that states that the maximum power is 360mW. If you need anything else please let me know. Sincerely, Sid Sanders email:[email protected]

TIMCO ENGINEERING INC. 849 NW State Road 45 Newberry, Florida 32669 http://www.timcoengr.com 888.472.2424 F 352.472.2030 email: [email protected] 6/29/2000 Mr. Andy Leimer FCC SUBJECT: Audiovox Model No. FR-540 REFERENCE: TC97816 1. I again spoke with a the engineer at the factory and the factory has agreed that they will setup a test fixture to measure ERP so that they can insure that they do not exceed 360mWatts on the unit. 2. Attached is a revised alignment instructions. 3. The seperation distance between the antenna an the body is at least 2.5cm or 1.0”. If you need anything else please let me know. Sincerely, Sid Sanders email:[email protected]

AUDIOVOX CORPORATION FCC ID: BGAFR540 JOB # 128AKO EXHIBIT # 3B

Alignment instructions WARNING Any repairs or adjustments should be made under the supervision of a qualified radio-telephone technician. TRANSMITTER 1. Power Supply Voltage The power supply voltage should be set for 4.5 VDC measured at the radio during transmit. Periodically check the power supply voltage during the alignment procedure. 2. Frequency Setting A. Connect a frequency counter or Communications Service Monitor to the antenna connector through an RF power attenuator (20 dB minimum attenuation). B. Depress the PTT switch. C. Adjust the C73 trimmer capacitor such that the output frequency is equal to the channel frequency with a maximum error of +/- 200 Hz. D. Release the PTT switch. 3. Output Power Alignment. A. Set the power supply voltage for 4.5 VDC. B. Connect a Communications Service Monitor or watt meter and dummy load to the antenna connector. C. Depress the PTT switch. D. There are NO adjustments for the transmitter output, This measurement will give you an indication that the transmitter is working. E. Release the PTT switch. 4. Modulation Adjustment. A. Connect an audio generator. The audio frequency should be set at 1 KHz. B. Connect an FM deviation meter or Communications Service Monitor to the antenna connector through an RF power attenuator (20dB minimum attenuation). Set the monitor to read peak deviation. C. Depress the PTT switch. D. Adjust RV 1 for +/- 2.5 KHz maximum deviation. E. Release the PTT switch. RECEIVER NOTE: Insure that the proper channel has been selected before proceeding with the alignment procedure. 1. Power Supply Voltage. The proper voltage for testing is 4.5 VDC. 2. Receiver Alignment A. Connect an RF signal generator or Communications Service Monitor to the antenna connector. B. Connect a SINAD meter and oscilloscope across the speaker terminals. C. Set the output level of the RF signal generator for -47dBm, the generator should be set for +/- 1.5KHz deviation of a 1KHz tone. D. Set the audio output level for 0.5Vrms, by adjusting volume. E. Adjust L1 for maximum audio output.

Safety Information ! Your wireless handheld portable transceiver is a low power radio. When the PTT button is pushed it sends out radio frequency (RF) signals. In August 1996, the Federal Communications Commissions (FCC) adopted RF exposure guidelines with safety levels for hand-held wireless phones. Important: To maintain Compliance with the FCC’s RF exposure guidelines, if you wear a handset on your body use only the Audiovox supplied carrying case, holster or other body-worn accessory for this product and ensure that the antenna is at least 1 inch (2.5 centimeters) from your body when transmitting. Use only the supplied antenna. Unauthorized antennas, modifications, or attachments could damage the transmitter and may violate FCC regulations. Normal Position: Hold the transmitter approximately 1” from your face and speak in a normal voice, with the antenna pointed up and away.

Safety Information ! Your wireless handheld portable transceiver is a low power radio. When the PTT button is pushed it sends out radio frequency (RF) signals. In August 1996, the Federal Communications Commissions (FCC) adopted RF exposure guidelines with safety levels for hand-held wireless device. Important: To maintain Compliance with the FCC’s RF exposure guidelines, if you wear a handset on your body use only the Audiovox supplied carrying case, holster or other body-worn accessory for this product and ensure that the antenna is at least 1 inch (2.5 centimeters) from your body when transmitting. Use only the supplied antenna and accessories. Unauthorized antennas, modifications, or attachments could damage the transmitter and may violate FCC regulations. Normal Position: Hold the transmitter approximately 1” from your face and speak in a normal voice, with the antenna pointed up and away.

TABLE OF CONTENTS LIST APPLICANT: AUDIOVOX CORPORATION FCC ID: BGAFR540 TEST REPORT: PAGE 1......COVER SHEET - GENERAL INFORMATION & TECHNICAL DESCR. PAGE 2......TECHNICAL DESCRIPTION CONTINUED AND RF POWER OUTPUT PAGE 3......MODULATION CHARACTERISTICS AND EMISSION BANDWIDTH PAGE 4......METHOD OF MEASURING OCCUPIED BANDWIDTH PAGE 5......SPURIOUS EMISSIONS AT ANTENNA TERMINALS PAGE 5......FIELD STRENGTH OF SPURIOUS EMISSIONS PAGE 6......METHOD OF MEASURING RADIATED SPURIOUS EMISSIONS PAGE 7......FREQUENCY STABILITY PAGE 8......LIST OF TEST EQUIPMENT EXHIBITS CONTAINING: EXHIBIT 1.........FCC ID LABEL SAMPLE EXHIBIT 2.........SKETCH OF FCC ID LABEL LOCATION EXHIBIT 3A........EXTERNAL FRONT VIEW PHOTOGRAPH EXHIBIT 3B........EXTERNAL REAR VIEW PHOTOGRAPH EXHIBIT 3C........INTERNAL COMPONENT CHASSIS VIEW PHOTOGRAPH EXHIBIT 3D........INTERNAL COMPONENT VIEW PHOTOGRAPH EXHIBIT 3E........INTERNAL SOLDER CHASSIS VIEW PHOTOGRAPH EXHIBIT 3F........INTERNAL SOLDER VIEW PHOTOGRAPH EXHIBIT 4A........BLOCK DIAGRAM - MOTHER BOARD EXHIBIT 4B........BLOCK DIAGRAM - RF MODULE EXHIBIT 5A........SCHEMATIC - MOTHER BOARD EXHIBIT 5B........SCHEMATIC - RF MOODULE EXHIBIT 6A-6B.....PARTS LIST EXHIBIT 7A-7C.....THEORY OF OPERATION EXHIBIT 8A-8B.....TUNING PROCEDURES EXHIBIT 9A-9C...USER'S MANUAL EXHIBIT 10........AUDIO FREQUENCY RESPONSE GRAPH EXHIBIT 11A.......MODULATION LIMITING - 300 Hz EXHIBIT 11B.......MODULATION LIMITING - 1000 Hz EXHIBIT 11C.......MODULATION LIMITING - 3000 Hz EXHIBIT 12........AUDIO LOW PASS FILTER GRAPH EXHIBIT 13A.......OCCUPIED BANDWIDTH CW PLOT EXHIBIT 13B.......OCCUPIED BANDWIDTH PLOT APPLICANT: AUDIOVOX CORPORATION FCC ID: BGAFR540 REPORT #: T:\CUS\A\AUDIOVOX\128AK0\128AK0.RPT PAGE: TABLE OF CONTENTS GENERAL_INFORMATION_REQUIRED FOR_TYPE_ACCEPTANCE 2.1033(c)(1)(2) AUDIOVOX CORPORATION will manufacture the FCCID: BGAFR540 FAMILY RADIO SERVICES 14 CHANNEL TRANSCEIVER in quantity, for use under FCC RULES PART 95. 2.1033 (c) TECHNICAL_DESCRIPTION 2.1033(c)(3) Instruction book. A draft copy of the instruction manual is included as EXHIBIT 9A-9C. 2.1033(c) (4) Type of Emission: 10K0F3E 95.629 Bn = 2M + 2DK M = 3000 D = 2.0K Bn = 2(3.0)+2(2.0) = 10.0K Authorized Bandwidth 12.5KHz 2.1033(c)(5) Frequency Range: 1. 462.5625 8. 467.5625 95.627 2. 462.5875 9. 467.5875 3. 462.6125 10. 467.6125 4. 462.6375 11. 467.6375 5. 462.6625 12. 467.6625 6. 462.6875 13. 467.6875 7. 462.7125 14. 467.7125 MHz 2.1033(c)(6)(7) Power Output shall not exceed 0.500Watts effective 95.637 radiated power. There can be no provisions for 95.647 increasing the power or varing the power. The Maximum Output Power Rating: 300 milliWatts effective radiated power. 95.645 The antenna is an intergral part to the unit, it cannot be removed without rendering the unit inoperative. In order to remove the antenna the case must unscrewed, then the PCB assemblies must be removed then the antenna can be removed. 2.1033(c)(8) DC Voltages and Current into Final Amplifier: FINAL AMPLIFIER ONLY Vce = 4.5 Volts DC Ice = 0.12A. Pin = 0.54 Watts 2.1033(c)(9) Tune-up procedure. The tune-up procedure is included as Exhibit 8A-8B. APPLICANT: AUDIOVOX CORPORATION FCC ID: BGAFR540 REPORT #: T:\CUS\A\AUDIOVOX\128AK0\128AK0.RPT PAGE #: 1 2.1033(c)(10) Complete Circuit Diagrams: The circuit diagram is included as EXHIBIT 5A-5B of this report. The block diagrams are included as EXHIBIT 4A-4B of this report. 2.1033(c)(11) A photograph or a drawing of the equipment identification label is included as EXHIBIT 1. 2.1033(c)(12) Photographs(8"X10") of the equipment of sufficient clarity to reveal equipment construction and layout, including meters, labels for controls, including any view under shields are included as EXHIBIT 3A-3F. 2.1033(c)(13) Digital modulation is not allowed. 2.1033(c)(14) The data required by 2.1046 through 2.1057 is submitted below. 2.1046(a) RF_power_output. 95.637 RF power is measured by measuring the radiated power at 3 meters and then replacing the transmitter with a signal generator to determine the effective radiated power. The ERP shall not exceed 0.500 Watts. MEASURED POWER OUTPUT = 300 milliWatts ERP R.F. POWER OUTPUT HP TEST SET UP Spectrum Analyzer /-------\ /-----------------\ | | | | TRANSMITTER | | | | | UNDER TEST WITH | \--| | | INTERNAL ANTENNA| | | | \-----------------/ | | | | | \-------/ | | |<-- 3.0 meters-->| /-------------\ | SIGNAL | DIPOLE | Tuned, Calibrated | GENERATOR | ANTENNA | Antenna which may | |----------/ be raised from 1 \-------------/ to 4 meters above ground and changed in polarization Equipment placed 1 meter above ground on a rotatable platform. APPLICANT: AUDIOVOX CORPORATION FCC ID: BGAFR540 REPORT #: T:\CUS\A\AUDIOVOX\128AK0\128AK0.RPT PAGE #: 2 2.1047(a)(b) Modulation_characteristics: AUDIO_FREQUENCY_RESPONSE The audio frequency response was measured in ac- cordance with TIA/EIA Specification 603. The audio frequency response curve is shown on the next page. The audio signal was fed into a dummy microphone circuit and into the microphone connector. The input required to produce 30 percent modulation level was measured. See EXHIBIT #: 10. 2.1047(b) Audio_input_versus_modulation The audio input level needed for a particular per- percentage of modulation was measured in accor- dance with TIA/EIA Specification 603. The audio input curves versus modulation are on the following pages. Curves are provided for audio input frequen- cies of 300, 1000, and 3000 Hz. See EXHIBIT # 11A-11C. 95.635(b) Post Limiter Filter The filter must be between the modulation limiter and the modulated stage. At any frequency between 3 & 20KHz the filter must have an attenuation of 60log (f/3) greater tha the attenuation at 1KHz. See the EXHIBIT #: 12. 2.989(c) EMISSION BANDWIDTH: 95.633(b)(1)(3)(7) Data in the plots shows that the sidebands from greater than 50% to 100% of the authorized bandwidth must be attenuated by at least 25dB and from 100 to 250% the sidebands must be attenuated by at least 35dB. Beyond 250% th…

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Audiovox Corporation FR-540 0 10 20 30 40 50 60 70 80 90 100 100100010000 Freque ncy rms mVolts audio response AUDIOVOX CORPORATION FCC ID: BGAFR540 JOB # 128AK0 EXHIBIT # 10

Modulation Limiting Audiovox Corporation FR-540 0 200 400 600 800 1000 1200 020406080100120 rms mVolts Deviation 300 Hz AUDIOVOX CORPORATION FCC ID: BGAFR540 JOB # 128AK0 EXHIBIT # 11A

Modulation Limiting Audiovox Corporation FR-540 0 500 1000 1500 2000 2500 020406080100120 rms mVolts Deviatio n 1000 Hz AUDIOVOX CORPORATION FCC ID: BGAFR540 JOB # 128AK0 EXHIBIT # 11B

Modulation Limiting Audiovox Corporation FR-540 0 500 1000 1500 2000 2500 050100150 rms mVolts Deviation 3000 Hz AUDIOVOX CORPORATION FCC ID: BGAFR540 JOB # 128AK0 EXHIBIT # 11C