SCUMICROLABT9753Walkie Talkie

T9753(UHF400 -470MHz) Instruction Manual PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 2 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 3 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 4 of 27 UHF 4W Output power 118 groups of memory channels 25KHz/12.5KHz Channel spacing compatible Automatic Numbering Identification (ANI) code Built-in voice Operate Transmit (VOX) function All channels scan and priority channel scan Scrambler PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 5 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 6 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 7 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 8 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 9 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 10 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 11 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 12 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 13 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 14 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 15 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 16 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 17 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 18 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 19 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 20 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 21 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 22 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 23 of 27 PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 24 of 27 General Frequency range 400-470MHz RF Channel 118 Channels CTCSS 50 Codes DCS 104+1 Codes Channel separation 12.5KHz/25KHz Operating Voltage DC 7.4V Working Temperate -20°C~+50°C Operate Mode Simplex or Semi-duplex Dimension 100mm ×55mm×32mm(Not included Antenna) Weight 220g(Including battery) Antenna impedance 50Ω Battery 1100mAH Li-ion Battery PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 25 of 27 Receiver RF Sensitivity 0.28μV /0.35μV Audio Distortion ≤3% Audio Response +2dB~-10dB Ajacent Channel Rejection ≥60dB Intermodulation Rejection ≥60dB Spurious Response ≥60dB Blocking ≥85dB Transmitter Frequency Stability ≤±2.5ppm Output Power ≤4W Modulation 16KΦF3E / 8KΦF3E Max Frequency Deviation ±5KHz / ±2.5KHz Audio Distortion ≤3% Modulation Character +3dB~-3dB Adjacent Channel Power ≥65dB Spurious Radiation ≤7.5μW Occupied Bandwidth ≤16KHz Current Drain Rated Audio ≤200mA Rated TX ≤1500mA Stdby Current ≤50mA Keep Alive(unit off) ≤500μA Charging Current for Battery 300mA±30mA PDF created with FinePrint pdfFactory trial version http://www.fineprint.com T9753 Instruction Manual 26 of 27 n User Safety, Training, and General Information l READ THIS IMPORTANT INFORMATION ON SAFE AND EFFICIENT OPERATION BEFORE USING YOUR HYT PORTABLE TWO-WAY RADIO. Operational Instructions and Training Guidelines To ensure optimal performance and compliance with the occupational/controlled environment RF energy exposure limits in the above standards and guidelines, users should transmit no more than 50% of the time and always adhere to the following procedures: Transmit and Receive To transmit (talk), push the Push-To - Talk (PTT) button; to receive, release the PTT button. Hand-held radio operation Hold the radio in a vertical position with the microphone one to two inches (2.5 to 5 cm) away from the lips. FCC Compliance This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures: · Reorient or relocate the receiving antenna. · Increase the separation between the equipment and receiver. · Connect the equipment into an outlet on a circuit different from that to which the receiver is connected. · Consult the dealer or an experienced radio/TV technician for help. FCC Requirements Your radio must be properly licensed Federal Communications Commission prior to use. Your dealer can assist you in meeting these requirements. Your dealer will program each radio with your authorized fr…

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February 5, 2007 Dear Sir or Madam: This letter is written in response to the email that we received on 2007-01-10 for the following applicant. Per your request, SAR testing is completed in accordance with FCC/TCBC procedures. Correspondence Reference Number: 35002 FCC ID: SCUMICROLABT9753 FCC Form 731 Confirmation Number (TC#): TC264450 Applicant: Microlab Technology Company Limited The following documents have been uploaded to FCC website: • R0702013 Cover Letter • R0702013SAR Rpt Should you have any further question please do not hesitate to contact me at (408) 732-9162 or email to [email protected] Thanks and have a nice day. Sincerely, Tina Chu Document Control Bay Area Compliance Laboratories Corp. 1274 Anvilwood Ave., Sunnyvale, CA 94089, USA

EXHIBIT B - EUT PHOTOGRAPHS EUT – Front View EUT – Rear View

EXHIBIT A - FCC ID LABELING AND LOCATION Proposed FCC ID Labeling Proposed FCC ID Location FCC ID Label Location ATTENTION! Restricted to occupational use to satisfy FCC RF exposure limits. See users manual for operating requirements. FCC ID: SCUMICROLABT9753 Model: T9753

EXHIBIT C - EUT INTERNAL PHOTOGRAPHS EUT – Uncovered View (1) EUT – Uncovered View (2) EUT – Main PCB Front View EUT – Main PCB Rear View EUT –LCD & Keyboard Front View EUT –LCD & Keyboard Rear View Speaker View

TQS-X-2-150-CW150 ELECTRICAL SPECIFICATIONS MECHANICAL SPECIFICATIONS Frequency Range 400470 MHz Band Width 5 MHz Impedance 50 VSWR 1.6 Gain 2 dBi Polarization Vertical Radiation Omni Height 134 mm Termination SMA-K Radome Material Polyurethane Radome Color Black Unitmm

Model T9753 Detailed Technical specification Rev : 02 Date: 20030310 Prepared by:_______________ Approved by:______________ Document no. DTST9753-01 Page 2 of 6 1:Standard Measurement Condition: 1 Standard DC Power 7.4VDC 2 Test Temperature 25°C ±5°C 3 Standard Audio Frequency 1kHz 4 Standard RF Input 1mV Standard ref. Modulation -- Audio Nominal ±2.5kHz 5 -- CTCSS ±0.6kHz 6 Standard ref. Audio Output 500mW 7 Standard ref. Audio Load 4Ω resistive 8 Antenna Impedance 50Ω 2:General specification 1 Operating Frequency 400 to 470MHz(T9753 UHF) 2 RF Channel 118 Channels 3 CTCSS 50 Codes 4 DCS 104+1 Codes 5 Channel separation 12.5KHz(Narrow bandwidth) /25KHz(Wide bandwidth) 6 Operating Voltage DC 7.4V 7 Working Temperate -20~+50 8 Operate Mode Simplex or Semi-duplex 9 Dimension 100mm×55mm×32mm(Not included Antenna) 10 Weight 220g(Including battery) Document no. DTST9753-01 Page 3 of 6 Note: All measurements are without CTCSS unless otherwise specified 3:. RECEIVER: Unit Nominal Limit Sensitivity 1 For 12dB Sinad uV 0.20 0.30 Rated Audio Output @ 5% THD speaker mW 500 400 2 @ Deviation sense. For rated output (VR @ max) ±kHz 1.5 2.0 Squelch a) Sensitivity Lo must open dB sinad 8 ±2 Hi must open dB sinad 14 ±2 b) Attack Time ms 60 150 3 c) Decay Time ms 40 250 CTCSS sensitivity @ code 12, 400 Hz dev. Must open squelch Lo dB sinad 8 ±2 4 Hi dB sinad 14 ±2 5 Audio Frequency Response @ 350 Hz dB -2 ±3 @ 2500 Hz dB -6 ±3 6 Adjacent Channel Rejection dB 70 ≥60 7 Inter-modulation Rejection (3 Gen. method) dB 65 ≥60 8 Spurious Response Rejection dB 70 ≥60 9 Blocking dB 90 ≥85 10 Spurious Emission dBm -60 -57 11 Audio Distortion at Vol. Max % 3 5 Document no. DTST9753-01 Page 4 of 6 3). General specification All measurements are without CTCSS unless otherwise specified B. TRANSMITTER: Unit Nominal Limit 1 Carrier Power (no mod) W 4.0 ≤4.0 2 Carrier Frequency Stability ±ppm 2 2.5 3 Modulation limiting (including CTCSS) ±kHz 2.2 2.5 4 Carrier Attack Time ms 25 100 Audio Freq. Responses. @ 300 Hz dB -10 ±3 5 @ 2500 kHz dB +4 ±3 6 Audio Distortion @2.5kHz dev. % 3 5 7 Microphone Sensitivity For 2.5kHz mV 5 ±3 8 spurious emission dBm -38 -36 Transient Freq. Behavior : a) Tx On ms 30 35 9 b) Tx Off ms 5 10 10 CTCSS a) Frequency Error % ±1 ±2 b) dev. kHz 0.6 ±0.2 4). POWER SUPPLY Unit Nominal Limit 1 Battery Life (5%:5%:90% Ratio) Hrs 10 8 2 Standby Current(squelch) mA 80 100 3 Charging current mA 300 +/-30 Current Drain -- at Rated Audio mA 250 300 -- at Rated Tx mA 1400 1600 4 -- at Power save mA 10 15 5 Battery Low Indication . ■■ . ■  Flasn V V V 6.0 5.7 5.3 +/-0.1 +/-0.1 +/-0.1 Document no. DTST9753-01 Page 5 of 6 FUNCTION DESCRIPTION Circuit Composition and Operation Theory 1. RECEIVER T9753 Receiver parts is composed in the double conversion system, which has the 1 st IF frequency of 29.250 MHz and the 2nd IF frequency of 450 KHz With the RF front-end which has an excellent band characteristics and skirt characteristics, the 2 pole MCF used in the 1 st IF , and the 3pole ceramic fitter in the 2 nd IF the reception interrupting factors such as the image 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 D155D211L167C167L165C165L163C163C169C168C166C164C162 The front RF amplifier transistor T221 consists of theL212C215L215 Input band pass filter and C226L229C232L2421 output band pass filter primarily diminishes the other signal rather than the 1 st IF image and other signal within the reception ban and amplifies only the necessary signal within the RF. 1 st Mixer The receiver which has been amplifier in the RF front end is provided to the base of the 1 st mixerT241. The 1st L/O signal provide from the VCO is supplied to the emitter of T241 and converted to the 1st IF 29.250 MHz.. 1 st IF filter and 1 st IF Amplifier The signal recovered by T241 to29.250 MHz, the 1 st frequency , then is infused to the fundamental MCF(FL251) has the center frequency of 29.250 MHz. Here .the signal reduces the image and other unwanted signal for the 2 nd IF, and changes its impedance again through the C251 Then signal is infused toT251 the 1 st IF Amplifier. The signal infused to theT251 is amplified approximately by 20dB in order to acquire the required reception sensitivity, and infused to the U261 which functions as the 2 nd mixer ,the2 nd IF amplifier and the FM detector. 2 nd Mixer, 2 nd IF, FM Detector(U261) The received IF signal of 29.250 MHz, which has been infused toU261 is mixed with the 2 nd L/O converted to 450KHz,the2 nd IF frequency. The receiver signal converted to the 2 nd IF signal frequency passed through the FL261,the ceramic filter of 450 KHz again, After the limiting inside the U261 and the FM demodulating by the quadrature detector inside the U261 the signal offers the output through the Pin 9 of U261 The squelch circuit is composed to detect the noises from the received signal demodulated in the Pin 9 of the U261 For this purpose the noise filter is using the OP amplifier inside the U261. Audio Power Amplifier(U451) The received audio signal, which has been filtered by U511 and adjusted to the appropriate volume by Volume control SW451, amplified approximately by 20dB,Then,it turns up the speaker with the maximum output between maximum of 500mW. 2. TRANSMITTER Pre-emphasis(U411) The voice signal input from the microphone is pre-emphasized at the MCU, the signal which comes out is limited to a certain amplitude for the voice signal not to exceed the allowable bandwidth assigned for transmission. TX Power(T141) Document no. DTST9753-01 Page 6 of 6 The transmitted signal of approximately 500mW,combined at the driver TR is supplied to the base ofT141 amplifier. The transmitted signal amplifier to 5W here passes the TX LPF of the 2 nd characteristics of the L163L165and L167,and RX/TX switching takes place byD155,After t…

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FootprintCommentQuantity REMARK C04020.5P4 C349C226C332C232 C538C537C536C535C175 C317_2 C314_2C315_2C313_2C456C423C315 CAPC593CAPCAPC455C415 C416C176CAPC612C515C322 C222C156C145C146C144C142 C133C135C132C121C122C123 C227 C326_1C312_2C316_2C318_1C387_1 C386_1R808 C450CAPC594C613C528C529 C633CAPC623C621C454C451 C610C254C269C413C668C301 C514C351C321C247C244C223 C181C174C391C392C701C520 C581C105 C665_1 C201C271C561C203C202C453 C411C418CAPC267C266C268 C257CAPCAPC662C354C316 C208C182C147C131C521C511 C571C573C101C103C102C302 CAPC250 C319_1C388_1C661C663_1 C0402105P4 C609C611C517C664_1 C040210P4 C255C263C348C331 C0402120P1 C259 C040212P2 C359C126 C040215P1 C113 C040218P3 C246C523C261 C04021P3 C241C225C212 C0402220P6 C265C264C512C394 C592C591 C0402222P1 C272 C0402223P3 C543C417C421 C0402224P1 C256 C040222P1 C353 C0402273P2 C555C414 C0402104P36 C0402103P 32 C0402100P 33 T-9753 UHF BOM Designators CAP 12 C0402102P 第 1 页，共 5 页 PDF created with pdfFactory trial version www.pdffactory.com C040227P1 C134 C04022P2 C231C362 C0402330P1 C513 C0402332P2 C432C426 C0402333P1 C516 C040233P1 C343 C04023P1 C215 C546C258C262C667C355C312 C310CAPC204CAPC313C358 C356C314C317C233C141C125 C127C111C112C243C177C221 C311C666 C532C533C534C531C632C622 C412C260C180C173 C0402473P2 C431C424 C040247P2 C324C393 C352C347C234C224C229C363 C216 C0402680P2 C433C428 C04026P1 C330 C040282P1 C395 C04028P2 C2352P C060315P3 C154C169C161 C060322P1 R818 C060324P3 C164C166C168 C06033P1 C163 C0603470P1 C162 C060347P1 C155 C06035P4 R817C165C167C151 C0805103P1 E242 L0603104P1 L333 C08051P2 L343L325 C08051uF5 E454C143C104 E319_1C541 C08052.2UF1 E474 C08052.2uF3 E413E435E363_1 C08054.7uF5 E412E311E180E326_1R827 C08050.1uF3 E367_1E411E364_1 L411C697100NHL313L242L122 multilayer L111L511 L326_1L316L315L227 L0603101T1 L521 ciol L0603100NH12 7C04025P 36C0402470P 0805 CAP INDUCTOR 第 2 页，共 5 页 PDF created with pdfFactory trial version www.pdffactory.com L060315NH1 L143 multilayer L06031UH1 L391 multilayer L0603220NH3 L351L354R807 multilayer L06033.3UH1 L348 multilayer L0603560NH1 L392 multilayer L06036.8UH2 L341L321 multilayer L0805101T4 L141L131L640L611 ciol L0805R121 L248 ciol L0805R221 L155 ciol L10091R01 L132 ciol L13101uH1 L168 ciol L08051R01 L246 ciol L0805R151 C344 ciol L0805R181 C325 ciol LC03232647NH3 L24118NHL225 ciol LC03232647NH 1 L215 ciol R457R235R362R134 R363_2R364_1 R662R663R538C251 R04021.8K1 R365_1 R413R321R352R314R363R131 R524R301 R459R528R529R547R269R595 R594R351R348R331R391R809 R561R478R201R453R434R429 R258R101R111R203R333R177 R184 R361_2R820 R040210R4 R458R354R125R127 R173R171R170R174R175R172 R392R583R582 R0402150R2 R456 R362_2 R040215K4 15K33KR522R519 R0402180K2 R263R265 R040218K2 R414R187 R596R417R411R254R251R593 R591R573R668R667R313R393 R312_2R666 R04021K52 R421R123 R04021M2 R183 R664_1 R04021M82 R433R428 R04022.2K1 R261 R04022.7K1 R259 R040220K2 R472R544 R0402220K5 R551R256R252R512R181 R0402220R5 R312R244R223R571R389_1 R040222K4 R415R552R515 R313_2 R040222R2 R315R112 R0402270k1 R665 14 R040210K15 R0402150K9 R04021K R0402100K8 R0402100R12 R04020R10 Resistor 第 3 页，共 5 页 PDF created with pdfFactory trial version www.pdffactory.com R0402270R3 R358R155R156 R040227K2 R556R555 R202R455R451R452R255R516 R103R302 R04023.3K7 R264 R366_1R367_1 R435R357R359R355 R040230K1 R422 R0402330R2 R110R811 R040233K5 R423R432R431R427R426 R040239K1 R554 R0402470K1 R553 R0402470R1 R572 R597R526R527R541R518R525 R592R436R221R222R182R186 R142R141R132R113R581 R387_1 R322 R040247R4 R247R143R133 R326_1 R273R272R311R243R576R575 R574R271R262L342L323 R0402560R2 R412 R368_1 R040256K2 R517R311_2 R04025K62 R356R661 R0402680K1 R416 R0402680R1 R124 R040268K3 R542R185R320 R06030R4 L591L331L121L133 R04026K81 R424 R040282K3 R543R523R521 R12060.39R3 R106R105R104 SOP824C16 1 U561 SOP8LM4558 1 U411 SOT243SK228 2 T221T241 U73 SOT892SC4988 1 T121 SSOP10-P-225TA7368F 1 U451 SSOP16-225TA31136 1 U261 SSOP8LM2904V 1 U170 U-SSOP20-225LMX2332 1 U311_1 T_ESM2SC4617(S) 3 T431T421T311 T_ESM2SJ243 1 T312 T_ESM2SK1824 1 T541 T_ESMDTA114EE 2 T261T573 T_ESMDTC114EE 3 T451T572T571 T_SOT892SK3078 1 T131 T_SOT895V 2 U621U631 T_TSM2SB624 5 T544T452T301T521T101 R04024K711 R04022K28 R040247K19 IC Transistor 第 4 页，共 5 页 PDF created with pdfFactory trial version www.pdffactory.com T_USM1SS372 1 D411 T_USM2SC3356 4 T111T351T352T361 T_USM2SC4215 2 T251T393 HF T_TSM2SK508NV 2 T341T331 T_USMDTC114EE 2 T171T181 T_USMMRF497 1 T411 T_USVUMC4 1 T313 T-ESM-2SC47382SC4738 1 T662 T-ESM-DTA114EEDTA114EE 1 T661 T-ESM-DTA114EEDTA114YE 1 T663 2SK32762SK3476 1 T141 LC0323266T1 L211 0.4*1.5*6T LC0424243T1 L163 0.4*1.5*3T LC0424265T2 L167L165 0.4*1.5*5T L5T8T 1L142 0.31*1.5*8T VR120810K 1 VR552 VR120850K 1 VR471 FX-DS097114.4MHz 1 CR311_1 CR_DS605529.250MHz 1 FL251 CR_DS060332.768KHz 1 CR521 SW-SKREANKEY 2 AN591AN593 SW-SKRTANKEY 1 AN592 SRP81K 1 PR752 SRP810K 1 PR511 JK-ST-1062.5mm 1 JK591 JK-ST-3013.5mm 1 JK592 C28C28 1 CR261 QFP44QFP44 1 U511 PEF450R15KR1450K 1 FL261 ANTANT 1 ANT111 Ant connector FX-DS0305P18 1 C678 JP-18-1P18 1 C681 RP-1206-41K 1PR311_1 Other Prepare: Checked: Approval: Coil Tunmer Crystal 第 5 页，共 5 页 PDF created with pdfFactory trial version www.pdffactory.com

ALIGNMENT PROCEDURE T9753UHF Doc No.:ALG-T9753-01 Rev : 01 Date : 20060307 Total Pages : 4 Prepared by : ____________________ Approved by : ____________________ Microlab Electronics Ltd. ALG-T9753UHF Rev:01 Page 2 of 3 1. TRANSIMITTER ALIGNMENT (TEST CONDITION: USE 7.4VDC 1.2A SUPPLY) NO. ITEM ALIGNMENT METHOD (WITH PRODUCTION SPEC.) REMARKS 1.1 Check LCD 1. Switch on the power ( SW451), check all segments should display clearly & correctly. 2. Check the current should be <40mA. 1.2 Rx / Tx VCO 1. Connect a voltmeter between CV test point and ground 2. Check Rx VCO should be 1.2+/- 0.3V on Frequency 435MHz. 3. Connect PTT button to ground. 4. Check Tx VCO should be 1.5+/- 0.5V on Frequency 435MHz. 5. Release PTT button. Press and hold the MON button monitor green light will be on. 1.3 Tx Frequency 1. Connect PPT button to ground and select frequency 435MHz 2. Adjust VC2 until Tx frequency should be435MHz+/- 0.30kHz. 1.4 Tx Power 1. Connect PPT button to ground and select frequency 400MHz and frequency 470MHz 2. Check Tx power should be ≥36dBm at Ant point 1.5 Tx Modulation Check CTCSS Tone Dev. Check CTCSS Freq. Error Check Max. Deviation 1. Connect PTT button to ground and Select frequency 435MHz 2. Apply 6mVrms (-44dBV) with 1kHz at mic input. 3. Adjust VR552 until the frequency deviation1.5k +/- 0.1 kHz and check distortion should less than 3%. 4. And also check if Tx frequency response as below: 300Hz = 1+/- 0.2kHz. and 1.5kHz = 3.0kHz +/- 0.2kHz. 5. Select frequency 400MHz with Code 1, 12, 38 , the CTCSS Dev = 0.6 +0/-0.15 kHz 6. Select frequency 470MHz with code 1, 12,38, the CTCSS Dev = 0.6 +0/- 0.15kHz 7. Check CTCSS Code 12 should be 100Hz+/-0.2%. 8. Increased mic input signal to +40dB, check max deviation should less than 2kHz and less than 2.5k with CTCSS. 1.6 Tx FM Noise 1. Connect PPT button to ground. 2. Connect 220uF E.Cap to mic input and ground. 3. Check FM noise should less than 300Hz at frequency 400MHz and frequency 470MHz. 1.7 Current Drain at max. Dev 1. Connect PTT button to ground and selected frequency 435MHz. 2. Check Tx current should less than 1600 mA with max deviation. 2. RECIEVER ALIGNMENT (TEST CONDITION: USE 7.4VDC3A SUPPLY) NO. ITEM ALIGNMENT METHOD (WITH PRODUCTION SPEC.) REMARKS 2.1 Check Rx Audio Level Rated Audio Output Power 1. Set RF generator to435MHz and set RF output to –47dBm with 1.5kHz deviation/1kHz. 2. Terminated speaker point with 4 ohm load. 3. Set speaker output level to 1.0V of unit. Check distortion should be less then 3%. 4. Set speaker output level to 1.5Vrms. Check distortion should be less then 4.5%. 5. Set speaker output level to max. Check distortion should <10%. Microlab Electronics Ltd. ALG-T9753UHF Rev:01 Page 3 of 3 2.2 Check Rx Audio Response 1. Set RF generator to 435MHz and set RF output to –47dBm with 1.5kHz deviation/1kHz. 2. Set speaker output to 1.0Vof unit with input signal is 1kHz as reference point (0dB). 3. Check Freq. Response : 300Hz =-2 +/-3dB and 2.5kHz = -6 +/-3dB 2.3 Rx Sensitivity 1. Set RF generator to 435MHz and set RF output to –47dBm with 1.5kHz deviation/1kHz. 2. Set speaker output to1.0V of unit and decrease RF output level to 12 dB sinad. 3. Check RF output level of RF generator should less than -123dBm . 4. Set RF generator to CH15 with 2.5kHz dev/1kHz.and decrease RF output level to 12 dB sinad. 5. The RF output level should less than –123dBm. 2.4 S/N ratio 1. Set RF generator to435MHz and set RF output to –47dBm without modulation. 2. Set speaker output to max of unit. 3. Check (speaker output) S/N ratio should be >40dB. 2.5 Rx Audio with CTCSS Check RX Sens. with CTCSS Check CTCSS Tone Decoder 1. Select 435MHz with CTCSS Code 12. 2. Apply –47dBm RF signal with 1.5kHz deviation/1kHz and external input of RF Gen with 0.6kHz deviation/100Hz as CTCSS code. 3. A 1kHz signal will be heard from speaker. 4. Set speaker output to1.0V and decrease RF level to 8dB sinad. 5. The speaker should be on. 6. Increase RF output level to –47dBm and change the external input Freq. of RF Gen. to 200Hz. 7. The speaker should be off. 3. DC CURRENT DRAIN (TEST CONDITION: USE 7.4VDC 3A SUPPLY ONLY) NO. ITEM ALIGNMENT METHOD (WITH PRODUCTION SPEC.) REMARKS 3.1 Check Battery Low 1. Set the power supply to 5.1V+/-0.15V. Battery low icon should be flashing. 3.2 Check Standby Current (squelched) 1. Check the standby current should less than 40mA(squelched). 3.3 Max . Audio Output 1. Adjust speaker volume to set speaker output level >1.0Vand distortion 5%. 2. Check current should less than 200mA. 3.4 Check charging current 1. Switch off the unit. Check charging current should less than 300+/-30mA with 9Vdc/800mA DC adaptor. Notice: The other functional tests, please referred to T9753 Operation Specification. ~~ END ~~

Note: This test report is for the customer shown above and their specific product only. It may not be duplicated or used in part without prior written consent from Bay Area Compliance Laboratories Corp. This report must not be used by the customer to claim product certification, approval, or endorsement by NVLAP or any agency of the U.S. Government (Rev.1) SAR EVALUATION REPORT For Shenzhen Microlab Technology Co. Ltd. Xinqiaotang Industrial Zone, Dalang, Longhua, Shenzhen, China FCC ID: SCUMICROLABT9753 This Report Concerns: Original Report Product Name: Two way Radio Test Engineer: Eric Hong Report No.: R0702013-SAR Report Date: 2007-02-02 Reviewed By: VP engineer: Hans Mellberg Prepared By: (HW) Bay Area Compliance Laboratories Corp. 1274 Anvilwood Ave. Sunnyvale, CA 94089, USA Tel: (408) 732-9162 Fax: (408) 732 9164 Shenzhen Microlab Technology Co. Ltd. FCC ID: SCUMICROLABT9753 Report #: R070213-SAR SAR Evaluation Report Page 2 of 48 DECLARATION OF COMPLIANCE SAR EVALUATION Rule Part(s): FCC §2.1093 & IEEE 1528:2003 Test Procedure(s): FCC OET Bulletin 65 Supplement C & IEEE 1528 Device Type: Two way Radio FCC ID: SCUMICROLABT9753 Modulation: F M TX Frequency Range: 421.0-470.0 MHz Max. Combined Conducted Power : 425.5 MHz – 35.7 dBm Antenna Type(s): External Antenna Measured SAR Value: 425.5 MHz, Body Worn: 3.385 w/kg (1g) 425.5 MHz, Face Hold: 1.26 w/kg (1g) BACL Corp. declares under its sole responsibility that this wireless portable device has been determined to be in compliance for localized specific absorption rate (SAR) for uncontrolled exposure and general population exposure limits specified in FCC OET Bulletin 65 Supplement C and has been tested in accordance with the measurement procedures specified in ANSI C95.3:2002 & IEEE 1528. All measurements reported herein were performed under my supervision and believed to be accurate to the best of my knowledge. I further attest for the completeness of these measurements and vouch for the qualifications any and all personnel performing such measurements. The results and statements contained in this report pertain only to the device(s) evaluated. /signature/ Eric Hong Bay Area Compliance Laboratories Corp. Shenzhen Microlab Technology Co. Ltd. FCC ID: SCUMICROLABT9753 Report #: R070213-SAR SAR Evaluation Report Page 3 of 48 TABLE OF CONTENTS REFERENCE, STANDARDS, AND GUILDELINES............................................................................................... 4 SAR LIMITS................................................................................................................................................................ 5 EUT DESCRIPTION.................................................................................................................................................... 6 EUT PHOTO................................................................................................................................................................ 6 DESCRIPTION OF TEST SYSTEM .......................................................................................................................... 7 TEST FACILITY............................................................................................................................................................ 7 MEASUREMENT SYSTEM DIAGRAM............................................................................................................................. 9 SYSTEM COMPONENTS.............................................................................................................................................. 10 TESTING EQUIPMENT ........................................................................................................................................... 18 EQUIPMENTS LIST & CALIBRATION INFO.................................................................................................................. 18 SAR MEASUREMENT SYSTEM VERIFICATION.............................................................................................. 19 SYSTEM ACCURACY VERIFICATION.......................................................................................................................... 19 EUT TEST STRATEGY AND METHODOLOGY................................................................................................. 20 SAR EVALUATION PROCEDURE................................................................................................................................20 CONCLUSION ........................................................................................................................................................... 21 SAR BODY & HEAD WORST-CASE TEST DATA........................................................................................................ 21 APPENDIX A – MEASUREMENT UNCERTAINTY............................................................................................22 APPENDIX B – PROBE CALIBRATION CERTIFICATES ................................................................................ 24 APPENDIX C – DIPOLE CALIBRATION CERTIFICATES............................................................................... 33 APPENDIX D - TEST SYSTEM VERIFICATIONS SCANS ................................................................................ 39 LIQUID MEASUREMENT RESULT................................................................................................................................39 APPENDIX E - EUT SCANS..................................................................................................................................... 42 APPENDIX F – CONDUCTED OUTPUT POWER MEASUREMENT............................................................... 44 PROVISION APPLICABLE............................................................................................................................................ 44 TEST PROCEDURE..................................................…

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