MMAGM222GRMS/ FRS 22 Channel Portable Transmitter

ANTY will repair or replace, at its option without charge, any Midland FRS/GMRS to a defect in material or workmanship within One Year followin g the initial rranty does not apply to water damage, battery leak damage or abuse. lude any carryin g cases, earphones, or antennas, which may be a part of or d product, or the cost of labor for removal or re-installation of the product in a ion under this warranty may be obtained by returning the warranted product, roof of purchase date, to: poration Department Missouri 64116. ecific legal rights, and you may also have other rights, which vary, from state to applies only to merchandise purchased in the United States of America or any of s thereof, or from a U.S. Military exchange. om m Printed in Thailand User’s Guide Model M-222P General Mobile R a Featuring: • 22 Channels • 38 CTCSS co d • VOX uency Chart r Channel Frequency Channel Number Channel Frequency (MHz) (MHz) 462.5625 12 467.6625 462.5875 13 467.6875 462.6125 14 467.7125 462.6375 15 462.5500 462.6625 16 462.5750 462.6875 17 462.6000 462.7125 18 462.6250 467.5625 19 462.6500 467.5875 20 462.6750 467.6125 21 462.7000 467.6375 22 462.7250 hart Code Freq Code Freq Code Freq Code Freq (Hz) (Hz) (Hz) (Hz) 9 91.5 17 118.8 25 156.7 33 210.7 10 94.8 18 123.0 26 162.2 34 218.1 11 97.4 19 127.3 27 167.9 36 225.7 12 100.0 20 131.8 28 173.8 36 233.6 13 103.5 21 136.5 29 179.9 37 241.8 14 107.2 22 141.3 30 186.2 38 250.3 15 110.9 23 146.2 31 192.8 16 114.8 24 151.4 32 203.5 Introduction Your M-222P represents the state-of-the art in high-tech engineer for General Mobile Radio Service operation, this compact package performance. It is a quality piece of electronic equipment, skillfull with the finest components. The circuitry is all solid-state and mo rugged printed circuit boards. Your M-222P is desi gned for many reliable, trouble-free performance. FCC Licensing Information Your M-222P operates on General Mobile Radio Service (GMRS) f r is subject to the Rules and Regulations of the Federal Communica mission (FCC). The FCC requires that all operators using General Service (GMRS) frequencies obtain a radio license before operati n equipment for business, personal or recreational use. A GMRS lice individual may be shared by immediate family members. To obtai application forms, call the FCC forms hotline at 1-800-418-3676 o http://www.fcc.gov. Please request forms 605 and 159which inc necessary forms and instructions. For questions concerning licensing, please contact the FCC at 1-8 (1-888-225-5322), or go to http://www.fcc.gov . re LCD Display lcohol or utions to radio. Do not immerse the radio in water. Do not use the radio until completely dry. ft damp the radio. Do turn off the radio and remove the batteries when storing. Do dry the radio with a dry lint free cloth should it get wet. To avoid accidentally changing radio operation, press for 3 icon will be appear. When the is on the menu functions buttons are disabled. When locked, you will be able to turn the n, increase or decrease volume, monitor, transmit and send a call , press for 3 seconds. r M-222P has 10 different call tones available. To select the call e radio on, repeatedly press until CALL appears. The current e setting will begin to flash. or to chan ge the call tone. The new call tone will be heard e speaker. or the PTT button to save the new call tone and exit the ng the call tone to 0 disables the call tone function. one: Whenever you release the PTT button, a “Roger Beep” tone tted to let your friends know you are finished talking. To enable , turn the radio off. Press and hold as you turn your radio n will appear in the upper right position of the display. Repeat to turn off the Ro ger Beep. Operation Power On/Off: Turn the knob on the top of the radio clockwise radio on. Turn the knob counterclockwise to turn the radio off. Volume: Rotate the knob clockwise to increase the volume and counterclockwise to decrease the volume. Talking and Listening: To communicate, all radios in your grou the same channel and CTCSS code. • For maximum clarity, hold radio 2 to 3 inches from mout h • Press and hold PTT button and speak in a normal voice in microphone. The LED indicator light glows continuously w transmitting • To receive messages, release the PTT button. Disabling Button Beeps: A feedback beep is normally sounded front panel button on the radio is pressed. To turn this feature o n and hold the button 3 seconds while turning the radio on. Th be on when beeps are enabled. 1 tion 1 dicators 2 3 4 5 10 Charts 12 s 13 Back Cover Technical Specifications General Frequency Range 462.56 Channels CTCSS Codes Antenna Impedance Speaker Impedance Power Supply 3 A A Modulation Type Intermediate frequencies 1 st IF = 21.7 MHz Receiver Sensitivity (for 12 dB Sinad) Audio out put power (@ 10%THD) Audio distortion (@ 500 mVrms) Signal/Noise ratio Image Rejection Adjacent channel selectivity Current drain (standby) Transmitter Modulation FM 1.8 Signal/Noise ratio Current drain (max) es with Part 15 of the FCC rules. Operation is subject to hat this device does not cause harmful interference. mpliance with the FCC’s RF exposure guidelines, this its antenna must maintain a separation distance of at s from your body. To transmit, hold the radio with the up and away from your face, with the radio at least two ur face. Speak in a normal voice into the microphone. tons & Indicators External Speaker/Microphone Jack: Your M-222P can be use optional external speaker/microphone or headset, freeing your ha tasks. To use an optional speaker/microphone or headset: • Open the SPK/MIC cover on right side of the radio. • Insert the plug(s) into the SPK/MIC jacks. Intercom: Your M-222P can be used with optional accessories t h radio to operate as an intercom system. • Open the INT cover on top of the radio. • Insert the appropriate plug into the INT jack. Belt clip: Your M-222P comes with a belt clip. To install the belt • Slide the clip down into the slots on the b…

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7. THEORY OF OPERATIONS Circuit Composition and Operation Theory The basic explanation for the circuit composition the one board controlling the analog circuit parts and the digital circuit parts for the other control. Receiver Receive parts is composed in the double conversion system, which has the 1 st IF Frequency of 21.7 MHz And 2 nd Frequency of 450 KHz The 2 pole MCF used in the 1 st IF, and the sensitivity repression are reduced for the more stable reception. RF Front end The signal received by the antenna will be transmitted to the band pass filter through the antenna switching circuit consisted of C44, L7 The front RF amplifier transistor Q1 consists of the L301, C302 input band pass filter and L305, L307, C314, saw filter output band pass filter primarily diminishes the other signal rather then the 1 st IF image and other signal within the reception band amplifier only the necessary signal within the RF 1 st Mixer The receiver that has been amplifier in the RF front end is provided to the base of the 1 st mixer Q2. The 1 st L/O signal provide from the VCO is supplied to the emitter of Q2 and Converted to the 1 st IF 21.7 MHz 1 st IF Filter and 1 st IF Amplifier The signal converted by Q2 to 21.7 MHz, the 1 st frequency, change its impedance through C61, L14 and then is infused to the fundamental MCF which has the center frequency of 21.7 MHz and the width of +/- 3.75 KHz. Here, the signal reduces the image and other unwanted signal for the 2 nd IF , and changes its Impedance again through the R9 and C5. Then the signal is infused to the Q3, the 1 st IF amplifier. The signal infused to the Q3 is amplifier approximately by 20 dB in other to acquire the required reception sensitivity, and infused to the IC1 which functions as the 2 nd mixer, the 2 nd IF amplifier, and the FM detector. 2 nd Mixer, and IF, FM Detector (IC1) The receiver IF signal of 21.7 MHz, which has been infuse to IC1 is mixed with the 2 nd L/O signal of 21.25 MHz, and converted to 450 KHz, the 2 nd IF frequency. The receiver signal converted to the 2 nd IF signal frequency passed through the CF1, the ceramic filter of 450 MHz again. After the limiting inside the IC1 and the FM demodulating by the quadrature detector inside the IC1, the signal offers the output through the 9 th pin of IC1.The 2 nd L/O signal of 21.25 MHz which infused to the IC1 filter and uses directly the crystal of 21.25 MHz. The squelch circuit is composed to detect the noised from the received signal demodulate in the 9 th pin of the IC1. For this purpose, the noise filter is using the amplifier inside the IC1. De-Emphasis and 300 Hz (IC103) The audio signal which has been FM demodulate in the IC1 is supplies to the IC103 which function as the De-emphasis and 300 Hz HPF. Since the IC103 has the 300 Hz HPF with the 1 st characteristics and the De-emphasis characteristics with the center frequency of approximately 200 Hz,the IC103A has the De- Emphasis characteristics, the IC103B, and the IC103C has the 300 Hz HPF with the 6 th characteristics, they function as a normal De- emphasis and also reduce the signal such as CTCSS to unwanted noised from the speaker. Audio Power Amplifier (IC101) The receiver audio signal which has been automatic adjusted to the appropriate volume in by VR1 are supplied to the 2 nd pin of the IC101 amplifier approximately by 20 dB. Then, it turns up the speaker with the maximum output of 0.3 watts. The 7 th pin of the IC101 is the audio mute terminal. Transmitter The transmitter parts of the M-222P is designed to amplify the RF signal oscillated and modulated by the synthesizer to approximately 500/2000 mW by the power transistor of Q200. Pre-emphasis and 300 Hz HPF, Limiter (IC104A, 104B) The voice signal input from the microphone is pre-emphasized at the same time, the components below 300 Hz are reduce to minimize the interference to the CTCSS tone. The signal which comes out of the IC104B is limited to a certain amplitude at the IC104B for the voice signal not to exceed the allowable band width assigned for transmission. 3 KHz LPF (IC104C, IC104D) After passing the IC104B limiter, the signal is combined with the CTCSS tone, passes the RV4, and is supplied to the 6 KHz LPF has the 4 th characteristics and adjust the assigned frequency band width not to exceed the allowable rang. Tx Power (Q200) The transmitted signal of approximately 7/15 mW, combined at the driver TR is supplied to the base of the Q200 amplifier. The transmitted signal amplifier to 500/2000 mW here passes the TX LPF of the 2 nd characteristics of the L10 and the L9, and RX/TX switching takes place by the D6. After this, The signal is provided to the antenna the TX LPF of the 1 st characteristics, consisted of the L8. “FRS” Frequency Synthesizer Voltage Control Oscillator (VCO) The VCO of oscillates 462.5500 MHz to 467.7125 MHz under the transmission condition and 440.8500 MHz to 446.0125 MHz under the reception condition. The VCO consist of the clip Oscillator of the Q4, and contains the oscillator frequency of approximately 21.7 MHz during the transmission/reception conversion. That is since the VCO should oscillate relatively low frequency during reception compared to transmission, the D3 is biased by the Q11. Therefore as a result, the C19 is added in parallel to the resonance circuit of the VCO to oscillate a low frequency. During transmission, a relatively high frequency should be oscillated compared to reception. Therefore, the D3 is adversely biased by the Q11, and as a result, The C19 that is added unparallel to the circuit of the VCO is removed to oscillate the desired transmission frequency. The VCO is controlled by the IC3 PLL IC in order to oscillate accurate frequency. The output frequency of the VCO is supplied to the IC3 PLL IC immediately. At the IC3, TCXO (21.25 MHz) by the TCXO is compared to the output frequency of the VCO. The VCO is controlled the loop filter consisted of the R28, R29 and the C33, C41, C68 in order to oscillat…

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8. ALIGNMENT INSTRUCTIONS WARNING Any repairs or adjustment 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 V DC measured at the radio during transmit. Periodically check the 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 (10 watt minimum rating, 20 dB minimum attenuation). B. Depress the PTT switch. C. Adjust the TCXO at CT300 such that output frequency is equal to the channel Frequency with a maximum error of +/-300 Hz. D. Release the PTT switch. 3. Output Power Alignment A. Set the power supply voltage for 4.5 V Dc. B. Connect a communications Service Monitor or a wattmeter and dummy load to the antenna connector C. Depress the PTT switch. D. To be convinced for 500/2000 mW output power with a maximum error of +/-200 mW E. Release the PTT switch. 4. Deviation Adjustment A. Connect an audio generator to the microphone jack JIG. The audio frequency should be set at 1 KHz B. Connect an FM deviation meter or communication Service Monitor to the antenna connector Through an RF power attenuator (10 watt minimum rating, 20 dB minimum attenuator). Set the monitor to read peak deviation. C. Depress the PTT switch. D. Adjust the audio generator level 10 mV rms. E. Adjust RV102 for 2.3 KHz maximum deviation (with CTCSS tone) F. To be convinced 2.0 KHz without CTCSS tone (1 KHz dev. 20 dB up) G. Release the PTT switch. RECEIVER Note : Insure that the proper channel has been selected before proceduring with the alignment procedure. 1. Power Supply Voltage. The proper voltage for testing is 4.5 V DC. 2. Receiver Alignment A. Connect an RF signal generator or Communications Service Monitor to the antenna connect. B. Connect a SINAD meter and oscilloscope across the speaker terminals. C. Set the output level of the RF signal generator for - 47 dBm the generator should be set for +/-1.5 KHz deviation of a 1 KHz tone. D. Set the audio output level for 0.6 Vrms by adjusting volume. E. Adjust T1 for maximum audio output. F. Reduce the output level of the RF signal generator for produce a 12 dB SINAD indication.

2. GENERAL SPECIFICATIONS Transmitter................................................................ CPU Controlled PLL Synthesizer Receiver.............................. CPU Controlled double conversion, super heterodyne system Operating Frequencies.............................. CH 1: 462.5625 MHz ~ CH 14: 467.7125 MHz CH 15: 462.5500 MHz ~ CH 22: 462.7250 MHz Battery Life......................................................... Alkaline Batteries 36 hours (typical) NiCd Batteries 10 hours (typical) Battery....................................................................................... 4.5 V DC @400 mAH Alkaline Batteries Test Temperature.................................................................................... .........25°C Frequency Stability.......................................................................................0.0 025% Transmitter/Receiver Switching......................................................................Electrical 3. RECEIVER SPECIFICATIONS TEST ITEM UNIT NOMINAL LIMIT 1. SENSITIVITY FOR 12 dB SINAD FOR CALL SIG DETECTION dBm dBm -119 -119 -115 -115 2. MAX. AUDIO OUTPUT @ 10% THD mW 200 150mW 3. MAX. S/N RATIO @ 1 mV RF INPUT dB 35 25 4. SQUELCH a) SENSITIVITY b) ATTACK TIME c) CLOSING TIME dBm mS mS -119 150 200 -115 250 5. AUDIO FREQUENCY RESP. @ 300 Hz @ 2500 Hz dB dB -3 -10 -6 ~ 0 -13 ~ -7 6. SIGNAL DISPLACEMENT BW. ±kHz 5 7. ADJACENT CH. REJECTION dB 55 50 8. INTERMODULATION REJECTION dB 55 50 9. SPURIOUS RESPONSE REJECTION dB 55 50 10. Intermediate Frequency 1 st IF.............................................................................................................................. 21.7 MHz 2 nd IF............................................................................................................................. 450 KHz 4. TRANSMITTER SPECIFICATIONS TEST ITEM UNIT NOMINAL LIMIT 1. POWER - GMRS - FRS mW mW 1500 500 1200 ~ 1800 400 ~ 600 2. CARRIER FREQUENCY STABILITY ±Hz 300 1000 3. MODULATION LIMITING kHz 2.3 2.0 ~ 2.5 4. CARRIER ATTACK TIME mS 150 5. AUDIO FREQUENCY RESPONSE @ 300 Hz @ 2500 Hz dB dB -10 +4 -13 ~ -7 +1 ~ +7 6. AUDIO DISTORTION % 3 5 7. HUM NOISE dB 35 25 8. TRANSIENT FREQUENCY BEHAVIOR a) TX ON b) TX OFF mS mS 30 5

Test Report S/N: 100702-285MMA Test Date(s): October 11, 2002 FCC SAR Evaluation © 2002 Celltech Research Inc.1 of 21 Celltech Research Inc. declares under its sole responsibility that this device was found to be in compliance with the Specific Absorption Rate (SAR) RF exposure requirements specified in FCC §2.1093. The device was tested in accordance with the measurement standards and procedures specified in FCC OET Bulletin 65, Supplement C, Edition 01-01 (General Population / Uncontrolled Exposure). I attest to the accuracy of data. All measurements were performed by me or were made under my supervision and are correct to the best of my knowledge and belief. I assume full responsibility for the completeness of these measurements and vouch for the qualifications of all persons taking them. This test report shall not be reproduced partially, or in full, without the prior written approval of Celltech Research Inc. The results and statements contained in this report pertain only to the device(s) evaluated. Russell W. Pipe Senior Compliance Technologist Celltech Research Inc. DECLARATION OF COMPLIANCE SAR EVALUATION Test Lab CELLTECH RESEARCH INC. Testing and Engineering Lab 1955 Moss Court Kelowna, B.C. Canada V1Y 9L3 Phone:250-448-7047 Fax:250-448-7046 e-mail: [email protected] web site: www.celltechlabs.com Applicant Information MIDLAND RADIO CORPORATION 1120 Clay Street North Kansas City, MO 64155 Rule Part(s):FCC 47 CFR §2.1093 Test Procedure(s):FCC OET Bulletin 65, Supplement C (01-01) Device Type:Portable UHF GMRS/FRS PTT Radio Transceiver FCC ID:MMAGM222 Model(s):M222P Modulation:FM (UHF) Tx Frequency Range:462.5500 - 462.7250 MHz (GMRS Channels 15-22) 462.5625 - 462.7125 MHz (FRS Channels 1-7) 467.5625 - 467.7125 MHz (FRS Channels 8-14) RF Conducted Power Tested:1.3 Watts (GMRS) Antenna Type(s):Fixed Battery Type(s):1.5V AA Alkaline (x3) Body-Worn Accessories:Belt-Clip, Earpiece/Lapel-Mic, Headset/Boom-Mic Max. SAR Measured:1.20 W/kg Face-held / 1.50 W/kg Body-worn Test Report S/N: 100702-285MMA Test Date(s): October 11, 2002 FCC SAR Evaluation © 2002 Celltech Research Inc.2 of 21 TABLE OF CONTENTS 1.0INTRODUCTION..................................................................... 3 2.0DESCRIPTION OF DUT............................................................ 3 3.0SAR MEASUREMENT SYSTEM ............................................... 4 4.0MEASUREMENT SUMMARY..................................................... 5 5.0DETAILS OF SAR EVALUATION............................................... 6 6.0EVALUATION PROCEDURES................................................... 7 7.0SYSTEM VALIDATION............................................................. 8 8.0SIMULATED TISSUES............................................................. 9 9.0SAR LIMITS........................................................................... 9 10.0SYSTEM SPECIFICATIONS......................................................10 11.0PROBE SPECIFICATION.........................................................11 12.0SAM PHANTOM......................................................................11 13.0LARGE PLANAR PHANTOM.....................................................11 14.0DEVICE HOLDER....................................................................11 15.0TEST EQUIPMENT LIST...........................................................12 16.0MEASUREMENT UNCERTAINTIES............................................13 17.0REFERENCES.......................................................................14 APPENDIX A - SAR MEASUREMENT DATA.............................................15 APPENDIX B - SYSTEM VALIDATION.....................................................16 APPENDIX C - DIPOLE CALIBRATION...................................................17 APPENDIX D - PROBE CALIBRATION....................................................18 APPENDIX E - MEASURED FLUID DIELECTRIC PARAMETERS................19 APPENDIX F - SAM PHANTOM CERTIFICATE OF CONFORMITY..............20 APPENDIX G - SAR TEST SETUP & DUT PHOTOGRAPHS........................21 Test Report S/N: 100702-285MMA Test Date(s): October 11, 2002 FCC SAR Evaluation © 2002 Celltech Research Inc.Midland Radio Corporation FCC ID: MMAGM222 (Model: M222P)3 of 21 Portable UHF GMRS/FRS PTT Radio Transceiver (462-467MHz) 1.0 INTRODUCTION This measurement report demonstrates compliance of the Midland Radio Corporation Model: M222P Portable UHF GMRS/FRS PTT Radio Transceiver FCC ID: MMAGM222 with FCC 47 CFR §2.1093 (see reference [1]) (General Population/Uncontrolled Exposure environment). The test procedures described in FCC OET Bulletin 65, Supplement C, Edition 01-01 (see reference [2]) were employed. A description of the product and operating configuration, detailed summary of the test results, methodology and procedures used in the evaluation, equipment used, and the various provisions of the rules are included within this test report. 2.0 DESCRIPTION of Device Under Test (DUT) FCC Rule Part(s) 47 CFR §2.1093 Test Procedure FCC OET Bulletin 65, Supplement C (01-01) Device Type Portable GMRS/FRS PTT Radio Transceiver FCC ID MMAGM222 Model(s) M222P Serial No. Pre-production Modulation FM (UHF) Tx Frequency Range 462.5500 - 462.7250 MHz (GMRS Channels 15-22) 462.5625 - 462.7125 MHz (FRS Channels 1-7) 467.5625 - 467.7125 MHz (FRS Channels 8-14) RF Conducted Power Tested 1.3 Watts (GMRS) Battery Type(s) 1.5V AA Alkaline (x3) Antenna Type(s) Fixed Body-Worn Accessories Tested Belt-Clip, Earpiece/Lapel-Mic, Headset/Boom-Mic Test Report S/N: 100702-285MMA Test Date(s): October 11, 2002 FCC SAR Evaluation © 2002 Celltech Research Inc.Midland Radio Corporation FCC ID: MMAGM222 (Model: M222P)4 of 21 Portable UHF GMRS/FRS PTT Radio Transceiver (462-467MHz) 3.0 SAR MEASUREMENT SYSTEM Celltech Research SAR measurement facility utilizes the Dosimetric Assessment System (DASY™) manufactured by Schmid & Partner Engineering AG (SPEAG™) of Zurich, Switzerland. The DASY sy…

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M-222P_Schematic_B.sch-1 - Wed Sep 18 14:52:28 2002

APPLICANT: MIDLAND RADIO CORPORATION FCC ID: MMAGM222 REPORT #: M/MidlandRadio_MMA\979UT2\979UT2TestReport.doc TABLE OF CONTENTS TABLE OF CONTENTS LIST APPLICANT: MIDLAND RADIO CORPORATION FCC ID: MMAGM222 TEST REPORT: PAGE 1......COVER SHEET - GENERAL INFORMATION & TECHNICAL DESCR. PAGE 2......TECHNICAL DESCRIPTION CONTINUED PAGE 3......RF POWER OUTPUT PAGE 4......MODULATION CHARACTERISTICS PAGE 5......AUDIO FREQUENCY RESPONSE GRAPH PAGE 6......MODULATION LIMITING GRAPH – 300Hz PAGE 7......MODULATION LIMITING GRAPH – 1000Hz PAGE 8......MODULATION LIMITING GRAPH – 2500Hz PAGE 9......AUDIO LOW PASS FILTER GRAPH PAGE 10.....OCCUPIED BANDWIDTH PAGE 11.....OCCUPIED BANDWIDTH PLOT PAGE 12.....OCCUPIED BANDWIDTH PLOT - CW PAGE 13.....SPURIOUS EMISSIONS AT ANTENNA TERMINALS PAGE 14-15..UNWANTED RADIATION PAGE 16.....METHOD OF MEASURING RADIATED SPURIOUS EMISSIONS PAGE 17.....FREQUENCY STABILITY PAGE 18-21..LIST OF TEST EQUIPMENT EXHIBITS CONTAINING: EXHIBIT 1.........FCC ID LABEL SAMPLE EXHIBIT 2.........LABEL LOCATION EXHIBIT 3.........EXTERNAL PHOTOGRAPHS EXHIBIT 4.........INTERNAL PHOTOGRAPHS EXHIBIT 5.........BLOCK DIAGRAM EXHIBIT 6.........SCHEMATICS EXHIBIT 7.........USER'S MANUAL EXHIBIT 8.........CIRCUIT DESCRIPTION EXHIBIT 9.........TUNING PROCEDURE EXHIBIT 10........TEST SET UP PHOTO EXHIBIT 11........SAR TEST REPORT APPLICANT: MIDLAND RADIO CORPORATION FCC ID: MMAGM222 REPORT #: M/MidlandRadio_MMA\979UT2\979UT2TestReport.doc Page 1 of 21 GENERAL INFORMATION REQUIRED FOR CERTIFICATION 2.1033(c)(1)(2) MIDLAND RADIO CORPORATION will manufacture the FCCID: MMAGM222 GMRS/FRS COMBINATION TRANSCEIVER in quantity, for use under FCC RULES PART 95. MIDLAND RADIO CORPORATION 1120 CLAY STREET NORTH KANSAS CITY, MO. 64116 2.1033 (c) TECHNICAL DESCRIPTION 2.1033(c)(3) Instruction book. A draft copy of the instruction manual is included as EXHIBIT 7. 2.1033(c) (4) Type of Emission: 10K4F3E 95.631 Bn = 2M + 2DK M = 3000 D = 2.2K Bn = 2(3000)+2(2200) = 10.4K GMRS Authorized Bandwidth 20.0 kHz 2.1033(c)(5) GMRS Frequency Range: 1. 462.5500 13. 462.7000 95.621 2. 462.5625 14. 462.7125 3. 462.5750 15. 462.7250 4. 462.5875 16. 467.5500 5. 462.6000 17. 467.5750 6. 462.6125 18. 467.6000 7. 462.6250 19. 467.6250 8. 462.6375 20. 467.6500 9. 462.6500 21. 467.6750 10. 462.6625 22. 467.7000 11. 462.6750 23. 467.7250 12. 462.6875 2.10311c)(6)(7) The Maximum Output Power Rating: GMRS – 1.3 Watts FRS - .5 Watts FRS Authorized Bandwidth 12.5 kHz 2.1033(c)(5) FRS Frequency Range: 1. 462.5625 7. 462.7125 95.627 2. 462.5875 8. 467.5625 3. 462.6125 9. 467.5875 4. 462.6375 10. 467.6125 5. 462.6625 11. 467.6375 6. 462.6875 APPLICANT: MIDLAND RADIO CORPORATION FCC ID: MMAGM222 REPORT #: M/MidlandRadio_MMA\979UT2\979UT2TestReport.doc Page 2 of 21 2.1033(c)(6)(7) Power Output shall not exceed 0.50 Watts effective 95.639 radiated power. There can be no provisions for 95.649 increasing the power or varying the power. 2.1033(c)(8) DC Voltages and Current into Final Amplifier: FINAL AMPLIFIER ONLY FOR LOW POWER SETTING INPUT POWER: (4.5V)(.210A) = .945 Watts FOR HIGH POWER SETTING INPUT POWER: (4.5V)(.600A) = 2.70 Watts 2.1033(c)(9) Tune-up procedure. The tune-up procedure is included as EXHIBIT # 9. 2.1033(c)(10) Complete Circuit Diagrams: The circuit diagram is included as EXHIBIT 6 of this report. The block diagrams are included as EXHIBIT 5 of this report. 2.1033(c)(11) A photograph or a drawing of the equipment identification label is included as exhibit No. 2. 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. See exhibits 3-4. 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. 95.639 Power Output shall not exceed 50.0 Watts effective radiated power. There can be no provisions for 95.649 increasing the power or varying the power. 2.1046(a) RF power is measured by the substitution method as outlined in TIA/EIA - 603. With a nominal battery voltage of 4.5 V, and the transmitter properly adjusted the RF output measures: OUTPUT POWER: GMRS 1.3 Watts ERP FRS .5 Watts ERP APPLICANT: MIDLAND RADIO CORPORATION FCC ID: MMAGM222 REPORT #: M/MidlandRadio_MMA\979UT2\979UT2TestReport.doc Page 3 of 21 2.1046(a) RF power output. The test procedure used was TIA/EIA-603 S2 APPLICANT: MIDLAND RADIO CORPORATION FCC ID: MMAGM222 REPORT #: M/MidlandRadio_MMA\979UT2\979UT2TestReport.doc Page 4 of 21 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 Page 5 of report. 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 2500 Hz. See Pages 6,7 & 8 of report. 95.637 Post Limiter Filter Each GMRS transmitter, except a mobile station transmitter with a power of 2.5 Watts or less, must be equipped with an audio low pass filter. At any frequency between 3 & 20 kHz the filter must have an attenuation of 60log (f/3) greater than the attenuation at 1 kHz. See Page 9 of report. APPLICANT: MIDLAND RADIO CORPORATION FCC ID: MMAGM222 REPORT #: M/MidlandRadio_MMA\979UT2\979UT2TestReport.doc Page 5 of 21 AUDIO FREQUENCY RESPONSE GRAPH Midland Radio Corp. m222 -49.5 -44.5 -39.5 -34.5 -29.5 -24.5 -19.5 -14.5 -9.5 100100010000 Frequency dBmV audio response APPLICANT: MIDLAND RADIO CORPORATION FCC ID: MMAGM222 REPORT #: M/MidlandRadio_MMA\979UT2\979UT2TestReport.doc P…

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