BGBMT279XG01APCS Mobile Telephone

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1. Description of General Information 1.1 Applicant {2.983(a)} Mitsubishi Electric Corporation Marunouchi 2 - Chome Chiyoda - Ku Tokyo 100, Japan Mailing Address: Mitsubishi Digital Electronics America, Inc. 1240 West Northwest Highway Palatine, IL 60067-1897 1.2 Manufacturer Mitsubishi Wireless Communications Inc. 3805 Crestwood Parkway, Suite 400 Duluth, GA 30096 1.3 Equipment {2.983(b)} Class I PCS 1900 Mobile Telephone Type: MT-279XG01A 1.4 Identification of the Equipment FCC ID: BGBMT279XG01A 1.5 Service 47 CFR 24 Subpart E Broadband PCS Personal Communications Service 1.6 Quantity Production {2.983(c)} Quantity production is planned.

MT - 279 FCC ApplicationExhibit 3Page 1 FCC ID: BGBMT279XG01A 3. Certification {2.909} Certification of Measurement Data of Transceiver Type MT-279XG01A PCS 1900 Mobile Telephone I certify that the data contained in this technical data was collected under my supervision and at my request. To the best of my knowledge and belief, the facts set forth herein are true and correct. Kenichi Furuno Manager Electrical Design Engineering Department Mobile Communications Design Center Mitsubishi Wireless Communications Inc. I certify that the data contained in this technical data was measured and listed by me. To the best of my knowledge and belief, the facts set forth herein are true and correct. Simon Jung Engineer Electrical Design Engineering Department Mobile Communications Design Center Mitsubishi Wireless Communications Inc. MT - 279 FCC ApplicationExhibit 3Page 2 FCC ID: BGBMT279XG01A 4. Statement of Qualification Name:Kenichi Furuno Born:October 25, 1961 Education:Bachelor of Science in Electrical Engineering Housei University, Tokyo, Japan Experience:15 years Name:Simon Y. Jung Born:September 30, 1973 Education:Bachelor of Electrical Engineering Georgia Institute of Technology Experience: 1 year

Secretary Federal Communications Commission Washington, DC 20554 Dear Sirs: We hereby apply, with the requisite information on the Mitsubishi Cellular Mobile Telephone, type MT-279XG01A for type acceptance by the FCC under the provision of FCC Rules and Regulations. This equipment is the cellular mobile telephone and is expected to operate under Broadband PCS, Personal Communications Service governed by 47 CFR 24 Subpart E. The equipment also conforms to 47 CFR 2, 47 CFR 15, and J-STD-007. The equipment will also conform to IEEE Std C95.1-1992: IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3KHz to 300GHz . We certify that this application was prepared by us, and that to the best of our knowledge and belief the facts set forth in this application and technical data accompanied are true and correct. We also certify that the equipment were tested in our plant using the system simulator which was provided by us. The equipment satisfied all functional requirements during test and operations. In case of acceptance of a grant of these equipment authorization, we warrant that each unit under the grant and bearing the name and type or model number specified in the grant will conform to the unit that was measured and that the data filed with the application for type acceptance continues to be representative of the equipment being produced under such grant within the variation that can be expected due to quantity production and testing on a statistical basis. Date: April 30, 1999 Sincerely, ------------------------------- Oscar Dayani Senior Manager Hardware & Software Mobile Communications Design Center Mitsubishi Wireless Communications Inc.

REQUEST FOR CONFIDENTIALITY CONTAINED WITHIN June 16, 1999 Federal Communications Commission Equipment Approval Service P. O. Box 358315 Pittsburgh, PA 15251-5315 Subject:Application for Cellular Mobile Telephone FCC ID: BGBMT279XG01A Gentlemen: We wish to submit our Application for Certification of the subject Broadband PCS Handheld Transceiver. This equipment is a cellular handheld mobile telephone intended for operations under the Broadband Personal Communications Service governed by 47CFR24 Subpart E. The equipment also conforms to 47CFR2, 57CFR15, J-STD-007 and IEEE Standard C95.1-1992: IEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 Hz. A completed Form 159 was faxed separately to the Mellon Bank. A wire transfer in the amount of $610.00 was also sent directly to the Mellon Bank for Fee Code EFT, Certification ($475.00) and Fee Code EBC, Confidentiality Request ($135.00). CONFIDENTIALITY REQUEST - Pursuant to 47CFR0.459 of the Commission’s Rules, we request that all information contained in Sect. 2.7 (Tune-up Procedure), 2.8 (Oscillator/Synthesizer Circuits), 2.10 (Description of Modulation System) and Schematics withheld from public disclosure. This material is CONFIDENTIAL information, and contains trade secrets and details that would not be typically available to the public. If you have any questions or require additional information, please contact me by telephone (847) 963- 9401, Facsimile at (847) 963-9406 or by e-mail at [email protected] Sincerely, R. Gruhlke Director Regulatory Liaison Division RG/e cc:Mitsubishi Wireless Communications, Mr. T. Sims G99A0611-3A Encl.

Photograph 8.1 – MT-2791G01A (Model 1 – Front View – Flip Closed – Antenna Down) Photograph 8.2 MT-2791G01A (Model 1 – Front View – Flip Closed – Antenna Up) Photograph 8.3 MT-2794G01A (Model 1 – Front View – Flip Open – Fixed Antenna) Photograph 8.4 MT-2792G01A (Model 2 – Front View – Antenna Up) Photograph 8.5 MT-2792G01A (Model 2 – Front View – Antenna Down) Photograph 8.6 MT-2793G01A (Model 3 – Front View – Flip Closed – Antenna Up) Photograph 8.7 MT-2793G01A (Model 3 – Front View – Flip Open – Antenna Down) Photograph 8.8 MT-279XG01A (Back View With Battery) Photograph 8.9 MT-279XG01A (Back View with Battery Removed) Photograph 8.19 AC Adapter with Label

7. Identification Plate {2.983(f)} 7.1 Identification Plate Drawing Figure 7.1.1 Identification Plate Drawing 7.2 Identification Plate Location Figure 7.2.1 Identification Plate Location

Mitsubishi Wireless Communications Inc. 7. Identification Plate {2.983(f)} 7.1 Identification Plate Drawing Figure 7.1.1 Identification Plate Drawing Mitsubishi Wireless Communications Inc. 7.2 Identification Plate Location Figure 7.2.1 Identification Plate Location

Photograph 8.10 MT-279XG01A (Back Cover Removed) Photograph 8.11 MT-279XG01A (Front Cover Removed) Photograph 8.12 (Front PWB LCD Installed) Photograph 8.13 (Front PWB with Shield) Photograph 8.14 (Front PWB with Shield Removed) Photograph 8.15 (Back PWB with Shields) Photograph 8.16 (Back PWB with Shields Removed) Photograph 8.17 (Front PWB without Shield) Photograph 8.18 (Back PWB)

2. Technical Description {2.983(d)} This equipment has been developed to be used in the broadband PCS personal communications service described in 47 CFR 24 Subpart E. This transceiver MT-279XG01A is designed in compliance with the FCC Rules and Regulations parts 2 and 24. The transceiver has a retractable type antenna or fixed antenna on the top of the unit and an external RF connector on the side of the unit. The rated transmitter output power of the transceiver is 1 watt peak at antenna terminal (+30 dBm). It is controlled to reduce its level in 15 steps of 2 dBm each on command from land station. Each power level is maintained within the range of ± 2 dB normal and ± 2.5 dB extreme over the ambient temperature range of -30 to +60 °C, and over the supply voltage range of ±10% from nominal value, cumulative. The transmitter operates in the frequency range 1850.2 MHz and 1909.8 MHz. This output frequency is produced in the frequency synthesizer circuits, and its stability is determined by the voltage controlled temperature compensated crystal oscillator (VC-TCXO) located in the frequency synthesizer circuits of the T/U board, and the frequency tolerance is within ±0.1 ppm over the operating temperature range. The IQ modulator is an IC contained on the T/U board. Audio signals from the microphone are added and fed to the audio codec where it is converted to a digital representation using a Full Rate Speech @ 13 kbps or Enhanced Full Rate Speech @ 13 kbps coding algorithm. All other transmitted information is generated in the Base-Band LSIC and DSP IC and controlled by the microprocessor. Filters and shielding sufficiently suppress the spurious and harmonic frequencies from transmitter. Required explanation of each circuit is described in more detail in each section. 2.1 Type of Emission{2.983(d)(1)} 250KGXW 2.2 Frequency Range {2.983(d)(2)} 1850.2 MHz to 1910.8 MHz 2.3 Power Rating {2.983(d)(3-5)} (1) Input Power for Final Amplifier +4 dBm (2) Input Voltages for Final Amplifier +3.8 Vdc (3) Input Current for Final Amplifier 1250 mA max. (4) Rated Output Power 1 W 2.4 Functions of All Active Devices {2.983(d)(6)} Table 2.4.1 Active Devices of Transceiver Unit SymbolPart numberManufacturerFunction D101PY1111C650StanleyDiode (LED) D102PY1111C650StanleyDiode (LED) D103PY1111C650StanleyDiode (LED) D104PY1111C650StanleyDiode (LED) D105RB715F-T107RohmDiode (DC Control) D106PY1111C650StanleyDiode (LED) D107PY1111C650StanleyDiode (LED) D108PY1111C650StanleyDiode (LED) D109PY1111C650StanleyDiode (LED) D110PY1111C650StanleyDiode (LED) D111PY1111C650StanleyDiode (LED) D112PY1111C650StanleyDiode (LED) D115PY1111C-650StanleyDiode (LED) D116SML-020MLTRohmDiode (LED) D117UPR5MicrosemiDiode (DC Control) D118UPS5817MicrosemiDiode (Schottky Barrier) D119UPS5817MicrosemiDiode (Schottky Barrier) D120UPS5817MicrosemiDiode (Schottky Barrier) D122RB715FRohmDiode (Schottky Barrier) D124UPS5817SeimensDiode (Schottky Barrier) D125RB715FRohmDiode (Schottky Barrier) D1600BBY57SeimensDiode (Varactor) D1700HSMS-2805Hewlett PackardDiode (Schottky Barrier) FL100MG064L18X500AVXDiode (EMI Filter) FL101VC060309A200AVXDiode (EMI Filter) FL102MG064L18X500AVXDiode (EMI Filter) FL201VC060305A150AVXDiode (EMI Filter) IC100BH6070KURohmIC (DSP) IC20129LV800FujitsuIC Memory (Flash) IC2025V108CKV-70HIMitsubishiIC Memory (SRAM) IC203X25650/1-2.5XicorIC Memory (EEPROM) IC300VWS22100-2VLSIIC DSP IC301TC75S51FUToshibaIC OPAMP IC303NJM2135RNJRIC AF Amplifier IC304NJM2135RNJRIC AF Amplifier IC1600AM50_0006MacomIC RF Amplifier IC1602HD155121FHitachiIC RF IC IC1603LMX2331LTMNational Semiconductor IC Synth IC IC1604VOU1740N30USASamsungIC VCO SymbolPart numberManufacturerFunction IC1605MM1385KNMitsumiIC Voltage Regulator IC1700LMV821M7National Semiconductor IC OPAMP IC1701PF04115B-01HitachiIC Power Amplifier IC1702UPC2763TBNECIC RF Amplifier IC1703VOU1880N30USASamsungIC VCO IC1704MM1385KNMitsumiIC Voltage Regulator IC1710CXG1028ATNSonyIC RF Switch TR100FMMT717-7ZetexTransistor (NPN) TR101SI2301DSTemicTransistor (PMOS) TR102UMH9NRohmTransistor (Digital) TR103FMMT717ZetezTransistor (NPN) TR104UMD2N/XP4312RohmTransistor (Digital) TR1062SC4617RohmTransistor (NPN) TR107NDH834PFairchildTransistor (PFET) TR108UMH6NRohmTransistor (Digital) TR2012SC4617RohmTransistor (NPN) TR2022SA1774RohmTransistor (PNP) TR2032SK2035ToshibaTransistor (PFET) TR300DTA114YERohmTransistor (Digital) TR16012SC4617RohmTransistor (NPN) TR1700UMH11NRohmTransistor (Digital) TR1701IRLML6302International Rectifier TR1702DTC144EERohmTransistor (Digital) TR1703IRLML6302International Rectifier TR1704DTC144EERohmTransistor (Digital) TR1705UMC3NRohmTransistor (Digital) X300MC-206-32.768K-6.7*R1*EpsonCrystal X1600KT14-FEU27L-13.0M-TKyoceraTCXO 2.5 Schematic Diagrams {2.983(d)(7)} Refer to Exhibit 9. 2.6 Instruction Book {2.983(d)(8)} As the instruction book is not yet available, a draft instruction book is in the Appendix folder enclosed with this application. The file is called InstructionBook.pdf. The complete instruction book will be submitted as soon as available.

2.9 Method of Suppression of Spurious Radiation and Limiting Power {2.983(d)(11)} The PA stage amplifies the signal from the frequency synthesizer circuits to appropriate output power and employs no multiplier. 2.9.1 Suppression of Spurious Components in the Synthesizer The RF (1880 MHz) band phase locked loop may cause the spurious components of reference frequency leakage and its harmonics. A phase lag filter and following low pass filter are located between phase detector and the 1880 MHz VCO, and sufficiently suppress these spurious components. The characteristic of this train is shown in Figure 0.1. Figure 0.1 Phase Lag Filter plus Low Pass Filter Response Characteristic 2.9.2 Antenna Filter The antenna discrete filter (L1702, C1701, C1702, C1703, C1704) of the transceiver unit is provided to eliminate out of band noise and spurious or harmonics from the transmitter. The frequency characteristics of the antenna discrete filter are shown in Figure 0.2. Figure 0.2 Antenna Filter Response Characteristic 2.9.3 Suppression of Spurious falling in the Receiver Frequency Band The HD15512F (IC1602) generates a modulated signal at intermediate frequency (IF) with a quadrature modulator and converts it to a final frequency with an Offset Phase Locked Loop (OPLL). The OPLL is simply a phased lock loop (PLL) with a down conversion mixer in the feedback path. The down converter in the feed back path acts as an up converter in the forward path and this allows the output frequency to be different from the comparison frequency without changing the normal operation of the loop. Phase and frequency changes in the reference signal are not scaled, as they would be if a divider were used in the feed back path, and hence the modulation is faithfully reproduced at the final frequency. The main advantage of the OPLL in this application is that it forms a tracking band pass filter around the modulated signal. The is because the loop cannot respond to phase variations at the reference that are outside its closed loop bandwidth. Thus the broad band phase noise from the quadrature modulator is shaped by the frequency response of the closed loop allowing the TX noise specifications to be met without further filtering. A second advantage of the OPLL is that the output signal, coming from the VCO, is truly constant envelope. This removes the problem of spectral spreading caused by AM to AM and AM to PM conversion in the power amplifier. With this description of the OPLL, the spurious falling in the receiver frequency band is sufficiently suppressed. 2.9.4 Suppression of Spurious Emissions by Cabinet The spurious emissions radiated from devices are suppressed using appropriate shielding techniques. Each high frequency device is covered with a shield, and the transceiver section is covered with shielding. Each connection between the printed circuit board and the interface connector terminals at the bottom of the transceiver are protected with the necessary capacitors. 2.9.5 Method of Output Power Control RF power level is controlled by the APC pin of the power module IC1701 and is adjusted in 2dB steps from +30 dBm (PCL 0) to 0 dBm (PCL 15) in 16 steps. The RF signal is coupled from Z1700 through Diode D1700 which converts the RF signal to DC. The DC signal then feeds back to OP-Amp IC1700 and then feeds the APC pin of power module. 2.9.6 Abnormal Transmit Countermeasure Abnormal transmit checks to see if the transmitter is operating in an incorrect time slot. If the transmitter attempts to operate in a wrong time slot, the APC pin voltage of IC1701 will appear incorrect to IC300 which then shuts down the transmit function.

3D-EMC Laboratory Inc. Product Compliance SAR Test Report Product : Mitsubishi Model : N/A FCC ID :MT279XG01A Reference no.:10030 3D-EMCLaboratory,Inc. for NEAR FIELD MEASUREMENTS 3D-EMC Laboratory Inc. TABLE OF CONTENT 1.1 SAR TEST REPORT.............................................................................................................................................3 1.2 PRODUCT COMPLIANCE TEST REPORT..................................................................................................4 2.1 GUIDELINES.........................................................................................................................................................5 LOCATION OF TEST.......................................................................................................................................................5 2.2 MEASUREMENT SYSTEM SPECIFICATIONS.........................................................................................5 2.3 TEST DESCRIPTION.........................................................................................................................................6 2.4 PHANTOM............................................................................................................................................................6 2.5 SIMULATED TISSUE..........................................................................................................................................6 PREPARATION..............................................................................................................................................................7 2.6 MEASUREMENT OF ELECTRICAL CHARACTERISTICSOF SIMULATED TISSUE...................7 DESCRIPTION OF THE SLOTTED COAXIAL WAVEGUIDE...............................................................................................8 2.7 SYSTEM DESCRIPTION....................................................................................................................................9 2.8 DATA EXTRAPOLATION................................................................................................................................10 2.9INTERPOLATION AND GRAM AVERAGING..........................................................................................10 2.10 POWER MEASUREMENT.............................................................................................................................11 2.11 POSITIONING OF D.U.T................................................................................................................................11 3.1 DATA......................................................................................................................................................................13 ANTENNAOUT..........................................................................................................................................................__ TEST INFORMATION...................................................................................................................................................__ ATTENUATION VERSUS DEPTH SCAN........................................................................................................................__ AREA SCAN CONTOURPLOT.....................................................................................................................................__ 3D PLOT OF ABSORBED ENERGY.............................................................................................................................__ ANTENNAIN..............................................................................................................................................................__ TEST INFORMATION...................................................................................................................................................__ ATTENUATION VERSUS DEPTH SCAN........................................................................................................................__ AREA SCAN CONTOURPLOT.....................................................................................................................................__ 3D PLOT OF ABSORBED ENERGY.............................................................................................................................__ SIMULATED TISSUE..................................................................................................................................................__ SIMULATED TISSUE TEST REPORT.......................................................................................................................__ 3D-EMC Laboratory Inc. SAR Test Report To:Mitsubishi Date:04/27/99 Re:10030 Radio Information Radio Type:Cellular Phone Model Number:N/A Serial Number:PROT 1 Frequency Band(MHz)1900 Frequency Tested(MHz)1910 Nominal Output Power:(W) 1.000 pk / av Antenna Type:Monopole Antenna Position:In Signal Type:GSM Duty Cycle:8:1 Simulated Tissue Type of Tissue:brain Measured Dielectric Constant:39.7 Measured Conductivity:1.25 Conditions Robot:6 Axis Scan Type:SAR Measured Field:E Measured Power(W):0.104 Phantom Type:head Phantom Position:left ear Room Temperature °C:23.0 Distance Antenna-Shell:18 mm Probe Probe Name:E3 Probe Orientation:- Probe Offset(mm):3.0 Sensor Factor:10.8 Conversion Factor:1.2684 Calibration Date:04/23/99 Results Maximum Fields Location:X : 15Y : 0 Peak Voltage (mv):4.26 1cm Voltage (mv):1.71 SAR (averaged over 1 gram of tissue) W/kg: 0.35 (Antenna IN), 0.28 (Antenna OUT) Comments@ 1850 MHz, Power 0.107 W = SAR 0.32 (Antenna IN) and 0.26 (Antenna OUT) @ 1880 MHz, Power 0.105 W = SAR 0.30 (Antenna IN) and 0.25 (Antenna OUT) Insertion loss of adapter cable = 0.2 dB (Measured by manufacturer) 3D-EMC Laboratory Inc. 4 Product Compliance Test Report Re:10030 Manufacturer:Mitsubishi Address:Japan Product Description:Cellular Phone Product Classification:Uncontrol Based on the …

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3D-EMC Laboratory Inc. Product Compliance SAR Test Report Product : Mitsubishi Model : N/A FCC ID :MT279XG01A Reference no.:10031 3D-EMCLaboratory,Inc. for NEAR FIELD MEASUREMENTS 3D-EMC Laboratory Inc. TABLE OF CONTENT 1.1 SAR TEST REPORT.............................................................................................................................................3 1.2 PRODUCT COMPLIANCE TEST REPORT..................................................................................................4 2.1 GUIDELINES.........................................................................................................................................................5 LOCATION OF TEST.......................................................................................................................................................5 2.2 MEASUREMENT SYSTEM SPECIFICATIONS.........................................................................................5 2.3 TEST DESCRIPTION.........................................................................................................................................6 2.4 PHANTOM............................................................................................................................................................6 2.5 SIMULATED TISSUE..........................................................................................................................................6 PREPARATION..............................................................................................................................................................7 2.6 MEASUREMENT OF ELECTRICAL CHARACTERISTICSOF SIMULATED TISSUE...................7 DESCRIPTION OF THE SLOTTED COAXIAL WAVEGUIDE...............................................................................................8 2.7 SYSTEM DESCRIPTION....................................................................................................................................9 2.8 DATA EXTRAPOLATION................................................................................................................................10 2.9INTERPOLATION AND GRAM AVERAGING..........................................................................................10 2.10 POWER MEASUREMENT.............................................................................................................................11 2.11 POSITIONING OF D.U.T......................…

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