Y4GCU780-1Two Way Radio

Instruction Manual CU780 FM Portable Radio Thank you for purchasing a COVALUE two-way radio. This simple to use radio adopts the latest advances in technology, providing reliable communication in today’s demanding communication environment. Notice to the User: · Please read this instruction manual before operating this radio. · It’s prohibited to use the radio or charge it at any area with a potentially explosive atmosphere (where the air contains gas, dust and smog, etc.), as well as while taking on fuel, or while parking at a gasoline service station; or any area where radio communication is prohibited (such as a hospital or a airport.) · It’s prohibited to operate the radio without permission in areas where the government laws prohibit radio communication. · Please don't expose the radio to direct sunlight for a long time; don't place the radio near any heating devices, either. · Please don't put the radio in extremely dusty, moist humid areas or unstable surfaces. · Only qualified personal, with proper tools and instruments are allowed to service and repair the radios, do not disassemble the radio by yourself to avoid damages. Warning： Your radio generates RF electromagnetic energy during transmit mode. This radio is designed for and classified as "ccupational Use Only" meaning it must be used only during the course of employment by individuals aware of the hazards, and the ways to minimize such hazards. This radio is NOT intended for use by the "eneral Population"in an uncontrolled environment. This radio has been tested and complies with the FCC RF exposure limits for "ccupational Use Only" In addition, your SHENZHEN COVALUE COMMUNICATIONS CO.,LTD.radio complies with the following Standards and Guidelines with regard to RF energy and electromagnetic energy levels and evaluation of such levels for exposure to humans: 1. FCC OET Bulletin 65 Edition 97-01 Supplement C, Evaluating Compliance with FCC Guidelines for Human Exposure to Radio Frequency Electromagnetic Fields. 2. American National Standards Institute (C95.1-1992), IEEE Standard for Safety Levels with Respect to Human Exposure to Radio Frequency Electromagnetic Fields, 3 kHz to 300 GHz. 3. American National Standards Institute (C95.3-1992), IEEE Recommended Practice for the Measurement of Potentially Hazardous Electromagnetic Fields- RF and Microwave. 4. The following accessories are authorized for use with this product. Use of accessories other than those (listed in the instruction) specified may result in RF exposure levels exceed the FCC requirements for wireless RF exposure. To ensure that your expose to RF electromagnetic energy is within the FCC allowable limits for occupational use, always adhere to the following guidelines: 1. DO NOT operate the radio without a proper antenna attached, as this may damaged the radio and may also cause you to exceed FCC RF exposure limits. A proper antenna is the antenna supplied with this radio by the manufacturer or antenna specifically authorized by the manufacturer for use with this radio. 2. DO NOT transmits for more than 50% of total radio use time (“50% duty cycle”). Transmitting more than 50% of the time can cause FCC RF exposure compliance requirements to be exceeded. The radio is transmitting when the “TX indicator” lights red. You can cause the radio to transmit by pressing the “PTT” switch. 3. ALWAYS keep the antenna at least 2.5 cm (1 inch) away from the body when transmitting and only use the COVALUE belt-clip which is listed in instructions when attaching the radio to your belt, etc., to ensure FCC RF exposure compliance requirements are not exceeded. To provide the recipients of your transmission the best sound quality, hold the antenna at least 5 cm (2 inches) from your mouth, and slightly off to one side. The information listed above provides the user with the information needed to make him or her aware of RF exposure, and what to do to as*sure that this radio operates with the FCC RF exposure limits of this radio. Electromagnetic Interference/Compatibility During transmissions, your COVALUE radio generates RF energy that can possibly cause interference with other devices or systems. To avoid such interference, turn off the radio in areas where signs are posted to do so. DO NOT operate the transmitter in areas that are sensitive to electromagnetic radiation such as hospitals, aircraft, and blasting sites. Occupational/Controlled Use The radio transmitter is used in situations in which persons are exposed as consequence of their employment provided those persons are fully aware of the potential for exposure and can exercise control over their exposure. SHENZHEN COVALUE COMMUNICATIONS CO., LTD. IC RF exposure statement: The device meets the exemption from the rout ine evaluation limits in section 2.5 of RSS 102 RF exposure,users can obtain Canadian information on RF exposure and compliance. IC RF exposure statement:IC RF exposure statement:IC RF exposure statement: CONTENTS ■ Unpacking and Checking the Equipment ------------------------------------ Supplied Accessories---------------------------------------------------- ■ Preparation ----------------------------------------------------------- Charging the Battery Installing/Removing the Battery Pack Installing the Antenna Installing the Optional Speaker/Microphone Installing/Removing the Belt Clip ■ Radio Overview ■ Basic Operations ■ Programmable Button Function ■ VOX (Voice Operated Transmission) ■ Radio Setting TOT (Time-out Timer) Battery Save Low Power Warning CTCSS/DCS ■ User Template RX Squelch Mode DTMF 5-Tone Signaling 2-Tone Signaling MDC Signaling ■ Troubleshooting ■ Major Specifications ■ Settings ■ Unpacking and Checking the Equipment Unpack the radio carefully. We recommend that you identify the items listed in the following table before discarding the packing material. If any items are missing or have been damaged during shipment, please contact the carrier or the dealer immediately. Supplied Accessories …

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1 2 3 4 5 6 78 ABCD 8 7 6 5 4 3 2 1 DCBA ANT LPF Q107RD07 D101 HVU131 RF AMP ANT SW Q105 RD01 RF AMP Q1012SC5066 RF AMP D100,D200MA2S077 T/RSW Q100 2SC5066 RF AMP Q6 2SC5066 BUFF AMP Q22SC5066 RF AMP Q3 2SK508 TX VCO Q7,Q5 2SJ243,UMC4 DC SW Q4 2SK508 RX VCO Q8 2SC4617 RIPPL FILTER LoopFilter LPF 12.8MHz LPF IC1MB15E03SL 5C T/R QTTCXO QTVCO 5C DET Q108 DTC144EE DCSW APCSW CURRENT IC100 NJM2904V B APC PLL_DATPLL_CLKPLL_LE Q2033SK318 D202 RF AMP BFP D203D905 BFP Q202 3SK318 1st MIXER XF201 51.65MHz First IF Q201 2SC5066 IF AMP CF200 450MHz IF Q1 2SC5108 X4 CD200 450kHz 5R 5R Q303 DTA144EE RX_W/N SW Q406AFMMT717 Q408DTA123JE Q406BFMMT717 5T 5RC SAVE IC902XC6201P502MRIC404XC6201P302PR 3M Q3072SK1588 Q401 DTC114EE MUTE DC SW SW IC302TDA2822D AF D401 GREEN AMP LED Q306DTC144EE DCSW Q304DTC144EEDCSW Q305 2SA1362 DCSW Batt Det PROTECT Q400 DTC114EE DC SW D400 RED LED IC401 FLASH X4009.8304MHz Q407 DTC144EE SW + - D204 APC Second EN0EN1GND BATT BATT PWR SW / VOL SP MIC EXT SW SB SB AFCO CH SW IC200TA31136 RSSIBUSY 5R 5R 5R 5C 5C 5T APC PTTSW1SW2ALARM SB SB LEDTX LEDRX IC403 MICROPROCESSOR BSHIFT XOUT XIN 3M RESETVOXRXDBUSY BATT RSSI DCS-IN EN0EN1PTT SW1SW2ALARM 5TC5RCTXDAFCOAPCSW SAVE APC QTVCOQTTCXO MICMUTE BEEPTX-W/NRX-W/N PLL-DATPLL-CLKPLL-STBLEDTXLEDRX IC901 TA75W01FU COMP IC500BNJM2900V AMP IC500ANJM2900V AMP 5M 5M VOX 5R SB IC300B IC300A DCS-IN LPF AMP IC300C HPF IC300D HPF NJM2902V 5R 5R 5R 5R IC301B LPF IC301ANJM2904V LPF 5R 5R 136-174MHz CU780-1 BLOCK DIAGRAM VER 1.0 TitleSize A3 Number Revision Date:File: Sheet ofDrawn By: X802 3.6864MHz IC806 AUDIO PROCESSOR XIN 3M A-TCLKA-TDATA A-DI/O A-RDTA-SCLK A-ADR A-TCLK A-TDATA A-DI/O A-RDTA-SCLK A-ADR MOD IC805DTMF 5R B-ACK B-SD RECEIVER B-ESt X801 4.194304MHz XIN B-ACK B-SD B-ESt TDIN TDIN SB 5TC 5C5R 5M LAMP LCD-1~5 LCD MODULE KEY-1~8 KEY BOARD 5R

EXHIBIT B - EUT EXTERNAL PHOTOGRAPHS EUT – with Antenna View EUT – Front View EUT – Rear View EUT – Top View EUT – Bottom View EUT – Left Side View EUT – Right Side View

EXHIBIT A - FCC ID LABELING AND LOCATION FCC ID Label Statement FCC ID Label Location The label shown shall be permanently affixed at a conspicuous location on the device and be readily visible to the user at the time purchase (Labeling requirements per 2.925) Lable here Statement

EXHIBIT C - EUT INTERNAL PHOTOGRAPHS EUT – Battery off View EUT – Cover off View 1 EUT – Cover off View 2 EUT – Main Board Top View EUT – Main Board Bottom View EUT – Key Board Top View EUT – Key Board Bottom View EUT – Battery View

136 to 174 MHz,The frequency c 1 Circuit Description 1 Frequency configuration The reference frequency of frequency synthesizer is provided by 12.8MHz crystal oscillator X1 TCXO. The receiver adopts quadric mixing mode. The first IF is 51.65MHz, and the second IF is 450kHz. The first local oscillation signal of the receiver is produced by frequency synthesizer and the second local oscillation signal selects the 4 rd harmonics of 12.8MHz of crystal oscillator X1 TCXO. The signal of transmitter is produced by frequency synthesizer directly. Figure 1 Frequency configuration 2 Receiver（Rx） The receiver is double conversion superheterodyne,designed to operate in the frequency range of onfiguration in Fig 1.1 Figure 2 Receiver section configuration Front End of Receiver Signals from the antenna are filtered by BPF which consists of C235 C255 C233 C951 C254 C345 C234 2 L211 L219 L234 D202 and D204 via RX/TX switch (D101 D102 and D103). After being filtered out the useless out-of-band signals, the signals are amplified by LNA consisting of Q203 and external components. Signals from LNA are filtered again by BPF which consists of C226 C238 C239 C229 C947 C259 L214 L254 D905 and D203 before entering the 1st mixer (Q202). The PWM wave is output by MCU composed of 58 foot and then commutated to adjustable voltage after filtering to change the capacity of varactor diode D905 D203 D202 and D204 to control the center frequency of BPF. 1 st mixer The first IF (51.65MHz) signal is produced after mixing of the receiving signal from LNA and the 1 st local oscillation signal from frequency synthesizer. The first IF signal is filtered out adjacent channel and other useless signals by crystal filter (XF201). IF Circuit The 1 st IF signal from crystal filter is amplified by the first IF amplifier (Q201) before processing of IC in IF( IC200，NJM2591V). IF IC consists of the 2 nd mixer, 2 nd local oscillation, IF amplifier, limiter, frequency discriminator and noise amplifier. Frequency (12.8MHz) produced by TCXO(X1) is amplified and then selects 4 rd harmonics (51.2MHZ) as the second local oscillator signal source. The second IF signals (450kHz) are generated after signals mixing of the second local oscillation (51.2MHz) and the first IF (51.65MHz) in IC200. Audio signals are demodulated and outputted by IC200 after the second IF signals are amplified and limited in IC200 and then filtered by ceramic filter(450kHz). 3 Figure 3 Schematic Diagram for IF System Receiving Audio Signal Processing: The audio processing circuit of receiver consists of IC300 and IC806. Voice signals from IC300 are sent to IC301（CTCSS signaling filter circuit）and IC806.IC806 includes audio filter and de-emphasis. Figure 4 Schematic Diagram for Audio Processing of Receiver Squelch Circuit Part of the AF signal from the IC200 enters the FM IC again,and the noise component is amplified and rectified by a filter and an amplifier to produce a DC voltage corresponding to the noise level. The DC signal from the FM IC goes to the analog port of the microprocessor(IC403).IC403 determines whether to output sounds from the speaker by checking whether the input voltage is higher or lower than the preset value. To output sounds from the speaker,IC403 sends a high signal to the MUTE and AFCO lines and turns 4 IC302 on through Q302 Q304 and Q305. Audio Power Amplification The audio power amplifying circuit consists of IC302 and the peripheral components. The signals are amplified by audio power amplifier to drive the speaker after collecting the receiving audio signals, voice signals and warning tone signals. The warning tone has no volume limitation. When AFCO is high level, Q304 is on, IC302 begins to work and the speaker sounds. Speaker Impedance: 16ohm CTCSS Signal filtering The audio signals after demodulation in IC200 may contain CTCSS (continuous tone control squelch system) or DCS（digital squelch）signals. The spectrum component of CTCSS/DCS is 67 to 250Hz. The filtering circuit composed of IC301 can filter out signals except CTCSS/DCS spectrum, which makes MCU decode the CTCSS/DCS more accurately. 3 Transmitter (Tx) Transmitter Power Amplifier Figure 5 Schematic Diagram for Power Amplifier and Antenna Switch The modulated RF signals from VCO are amplified by Q101, Q102 and Q105 before the power amplification in Q107. Gate bias of Q105 and Q107 is controlled by APC circuit, so the output power of transmitter can be controlled conveniently by changing the gate bias voltage. APC（Automatic Power Control） 5 Figure 6 Schematic Diagram for APC Circuit R130 R131 and R132 are power amplification current detector, IC100A is power amplification current sampling amplifier and IC00B is power comparison amplifier. The power amplification current and IC100A output will increase with oversized output power of transmitter. When the output voltage of IC100B decreases, the bias voltage of Q105 and Q107 will decrease, finally the output power of transmitter will decrease or vice versa. Thus, the output power of transmitter will keep stable under any different working condition. MCU can set the power by changing the voltage input to IC100B. Audio Signal Processing of Transmitter Figure 7 Schematic Diagram for Audit Circuit of Receiver The audio signal processing circuit of Transmitter consists of IC500 and IC806. Voice signals from MIC are sent to VCO for modulation together with CTCSS/DCS after amplification, limitation and filtering. IC806 includes amplifier,filter,limiter and pre-emphasis. 6 AGC circuit consists of D800, D801 and Q801,Q802. The signal amplitude is reduced to ensure no distortion in case of oversized MIC signal. Q504, the power switch of voice processing circuit, controlled by MCU, will give power supply to IC500 only during transmission. J501 is the socket for external MIC, and the internal MIC will disconnect automatically when using external MIC, but the internal PTT is still effective. 4 PLL Frequency Synthesizer Figure 8 Schematic Diagram fo…

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Federal Communications CommissionDA 13-431 Before the Federal Communications Commission Washington, D.C. 20554 In the Matter of Implementation of Sections 309(j) and 337 of the Communications Act of 1934 as Amended Promotion of Spectrum Efficient Technologies on Certain Part 90 Frequencies ) ) ) ) ) ) ) WT Docket No. 99-87 RM-9332 ORDER Adopted: March 15, 2013Released: March 18, 2013 By the Chief, Wireless Telecommunications Bureau, Chief, Public Safety and Homeland Security Bureau, and Chief, Office of Engineering and Technology: 1.Introduction.In this Order, we grant in part and deny in part a Petition to Delay Indefinitely Implementation of Section 90.203(j)(5) of the Commission’s Rules filed by Ritron, Inc. (Ritron) on September 21, 2012. 1 Pursuant to Section 90.203(j)(5) of the Commission’s rules, the Commission no longer accepts applications for certification of Part 90 private land mobile radio (PLMR) equipment in the 150-174 MHz and 450-512 MHz bands that cannot operate in a 6.25 kHz mode or with equivalent efficiency. 2 Ritron requests that implementation of this requirement be delayed indefinitely. We conclude that the requirement should be waived only until January 1, 2015. 2.Background.In 1995, the Commission adopted rule changes to promote the efficient use of the PLMR service and facilitate the introduction of advanced technologies. 3 To promote the transition to a more efficient narrowband channel plan, the Commission provided, inter alia, that “only increasingly efficient equipment” would be approved. 4 The Commissiondid not set a date after which it would no longer approve equipment with a wideband (25 kHz) mode, or after which such equipment could no longer be manufactured or used. 5 The Commission contemplated that, as systems reached the end of their service life and new radios were needed, users would migrate to the narrower bandwidth multi-mode radios in order to avoid the adjacent-channel interference that could occur from systems using the adjacent narrowband channels. 6 3.Subsequently, the Commission determined that the 1995 rules failed to provide adequate incentive to realize the Commission’s spectrum efficiency goals in these bands, and stronger measures 1 SeePetition to Delay Indefinitely Implementation Section 90.203(j)(5) of the Commission’s Rules (filed Sept. 21, 2012) (Petition). 2 See47 C.F.R. § 90.203(j)(5). 3 SeeReplacement of Part 90 by Part 88 to Revise the Private Land Mobile Radio Services and Modify the Policies Governing Them, Report and Order and Further Notice of Proposed Rule Making, PR Docket No. 92-235, 10 FCC Rcd 10076, 10077 ¶ 1 (1995). 4 Id.at 10081 ¶ 7. 5 Id.at 10100 ¶ 40. 6 Id. Federal Communications CommissionDA 13-431 2 would be required to bring about a timely transition to narrowband technology. 7 The Commission therefore amended the rules to provide that, by January 1, 2013, Industrial/Business and Public Safety Radio Pool licensees in the 150-174 MHz and 421-512 MHz bands must migrate to 12.5 kHz channel bandwidth or utilize a technology that achieves equivalent efficiency. 8 4.The Commission also adopted interim deadlines to facilitate this transition to narrowband technology. Among other rules, the Commission provided that, beginning January 1, 2011, it would no longer accept applications for certification of equipment that cannot operate in 6.25 kHz mode or with equivalent efficiency. 9 In 2010, the Commission temporarily waived this requirement until January 1, 2013, 10 but stated, “If 6.25 kHz standards still are not in place at that date, interested parties may request a further extension.” 11 5.Ritron, a manufacturer of wireless products, contends that standards for 6.25 kHz technology are not yet in place and that other issues exist that justify delaying implementation of mandatory 6.25 kHz certification by manufacturers.Ritron states that no one 6.25 kHz equipment standard exists and that, in the Industrial/Business sector of the market, two incompatible and proprietary technologies have emerged. 12 Italso argues that 6.25 kHz equipment is still unduly expensive. 13 Finally, Ritron asserts that using the equipment authorization process to facilitate the transition to narrowband technology has been largely unsuccessful. 14 Itconcludes that the implementation of Section 90.203(j)(5) should be delayed until (a) a real need has been established for additional PLMR frequencies beyond those created by the transition to 12.5 kHz channels; (b) the benefits of 6.25 kHz outweigh the associated research and development, manufacturing, and product costs; and (c) a standard has emergedfor a more cost-effective voice compressor/decompressor (vocoder). 15 6.The Wireless Telecommunications Bureau, Public Safety and Homeland Security Bureau and the Office of Engineering and Technology sought comment on Ritron’s request. 16 We asked commenters to address whether the public interest would be served by further delaying implementation of 7 See Implementation of Sections 309(j) and 337 of the Communications Act of 1934 as Amended,Second Report and Order and Second Further Notice of Proposed Rulemaking, WT Docket No. 99-87, 18 FCC Rcd 3034, 3038 ¶ 12 (2003). 8 See 47 C.F.R. § 90.209(b)(5). The January 1, 2013 deadline for converting to 12.5 kHz technology has been waived for licensees in the 470-512 MHz segment of the UHF band (the T-Band). SeeImplementation of Sections 309(j) and 337 of the Communications Act of 1934 as Amended, Order, WT Docket No. 99-87, 27 FCC Rcd 4213 (T-Band Order), on recon., Order on Reconsideration, 27 FCC Rcd 14770 (WTB/PSHSB/OET 2012). 9 See Implementation of Sections 309(j) and 337 of the Communications Act of 1934 as Amended,Third Report and Order, WT Docket No. 99-87, 22 FCC Rcd 6083, 6090 ¶ 16 (2007) (Third Report and Order). 10 See Implementation of Sections 309(j) and 337 of the Communications Act of 1934 as Amended, Order, WT Docket No. 99-87, 25 FCC Rcd 8861, 8866 ¶ 11 (2010) (Order). 11 Id.at 8866 n.41. 12 …

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1 ADJUSTMENT 1 Required Test Equipment Table 1 Number Name Parameter requirements 1 Computer Above P2, compatible IBM PC, WINDOWS 98/ME/2000/XPOperating System 2 Programming software CCP780 3 Programming cable 4 Dubbing cable CPL-01 5 DC regulator Output voltage:7.4V, output electric current:≥ 5A 6 RF power meter Test range: 0.5---10W Frequency range: 100MHz—500MHz Resistance: 50Ω SWR≤1.2 7 Frequency meter Frequency range: 0.1—600MHz Frequency accuracy: higher than±1×10 -6 Sensitivity: higher than 100mV 8 Frequency deviator Frequency range: DC—600MHz Test range: 0--±5kHz 9 DMM Input resistance: above 10MΩ/V DC, capable of measuring voltage, electric current and resistance. 10 Audio signal generator Frequency range:2---3000Hz Output level: 1---500mV 11 RF po wer attenuator Decrement: 40db or 50db Receive power : higher than10W 12 Standard signal source Frequency range:10MHz---1000MHz Output level:0.1uV~32mV (-127dBm~-17dBm) 13 Oscillograph Frequency range: DC~20MHz Test range: 10mV~20V 14 Audio Frequency voltmeter Test range: 10mV~10V Recommend how to use: item 6, 7, 8, 10, 11 and 12 which listed in the table can be substituted by integrated tester HP8920/HP8921. 2 Figure 1 External Speaker/microphone Interface Definition 2 Adjustment Items Some detection and adjustment shall be made to the station technical data after changing the components during the maintenance. The debugging introduction of some related circuits goes as follows: Some parameters of the product can be adjusted (“Interphone Performance Tuning”) by use of CCP780 Programming Software of our company. The adjustable parameters are as follows： 1) Frequency stability” 2) Transmitting power 3) Alarm threshold for battery low-voltage 4) Squelch level 5) QT frequency offset 6) DCS frequency offset 7) Receiving sensitivity Steps for adjustment： a、Enter Computer Test Mode by selecting “Test Mode” in main menu of CCP780 Programming Software. b、Select the items to be adjusted in choice menus, and then adjust the parameters by function keys on the computer keyboard. c、Exit Computer Test Mode after adjustment. 3 Adjustment 3.1 VCO Adjustment Close “Power-saving Mode”. Set receiving frequency to low frequency point (see Table 2) and in the receiving state, test voltage of PD by DMM and adjust fine-tuning capacitor TC1/TC2 to get CV voltage of 1.0V±0.2V Set transmitting frequency to high frequency point (refer to Table 2), press PTT and test voltage of PD by DMM, which shall less than 4.0V Table 2 High/ Intermediate/ Low Frequency Point of All Models Low Frequency Point Intermediate Frequency Point High Frequency Point CU780-1 136.000 MHz 155.100 MHz 173.975 MHz power up to 5W by adjusting the number fr 3 3.2 PLL frequency calibration Double-click to enter “Frequency Stability” in “Interphone Performance Tuning” to achieve the rated transmitting frequency by adjusting the number from 0 to 255 (Error<200Hz). 3.3 Transmitting frequency adjustment Double-click to enter “Transmitting High Power” in “Interphone Performance Tuning” to adjust the five frequency points including ”Lowest”, “Low”, “Mid”, “High” and “Highest” respectively and set transmitting om 0 to 255 and observe the operating current (≤1.6A) at the same time. Double-click to enter “Transmitting Low Power” in “Interphone Performance Tuning” to adjust the five frequency points including ”Lowest”, “Low”, “Mid”, “High” and “Highest” respectively and set transmitting power to over 1W by adjusting the number from 0 to 255. 3.4 Transmitting low-voltage alarm Adjust power voltage to 6.3V and double-click to enter “Transmitting Low Voltage” in “Interphone Performance Tuning” Mode for automatic detection of the software, and then click “Save” for exit after no or little variation in numbers. 3.5 Frequency offset adjustment Input audio signal (12mV, 1000Hz) at MIC jack of interphone. Adjust the potentiometer VR501 and set frequency offset to ±4.2kHz. 3.6 DCS transmitting signal waveform and frequency offset adjustment Double-click to enter “DCS frequency offset” in “Interphone Performance Tuning” Mode, adjust potentiometer VR1 to observe demodulated signal (the waveform shall be smooth and similar to square wave), and then click “Broadband” to adjust all points including ”Lowest”, “Low”, “Mid”, “High” and “Highest” respectively for frequency offset of 0.8kHz. After that, click “Narrowband” to adjust the frequency offset to 0.4kHz. 3.7 CTCSS frequency offset adjustment Double-click to enter “QT(67) frequency offset” in “Interphone Performance Tuning” Mode and click “Broadband” to adjust the five frequency points including ”Lowest”, “Low”, “Mid”, “High” and “Highest” respectively to 0.75kHz and then click “Narrowband” to adjust the frequency offset to 0.35kHz. Select “QT(254) frequency offset” in “Interphone Performance Tuning” Mode, and the debugging method is the same as that of “QT(670) frequency offset”. 3.8 Receiving Sensitivity Double-click to enter “Receiving Sensitivity” in “Interphone Performance Tuning” Mode to adjust the five frequency points including ”Lowest”, “Low”, “Mid”, “High” and “Highest” respectively and the number from 0 to 255 for setting max sensitivity of all points. 3.9 Receiver Squelch setting Double-click to enter “SQL9 open” in “Interphone Performance Tuning” Mode and click “Broadband” to close level to -125dBm. l of transmitting signal changed to -123dBm and the 4 make the frequency of the transmitting signal corresponding to the receiving frequency (level of -116dBm, modulation signal of 1kHz and frequency offset of 3kHz) showed at each frequency point of the software. Enter all points including ”Lowest”, “Low”, “Mid”, “High” and “Highest” respectively for automatic adjustment of software and then press next point after no big change to numbers. After that, adjust “Narrowband”, the debugging method is the same as that of “Broadband” except the input modulation signal is changed to frequency of 1kHz and frequency offset of 1.5kHz. Select “SQL9 open” in “Interph…

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Note: This test report is prepared for the customer shown above and for the device described herein. 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 A2LA* or any agency of the Federal Government. * This report may contain data that are not covered by the A2LA accreditation and are marked with an asterisk “*” (Rev.3) SAR EVALUATION REPORT For Shenzhen Covalue Communications Co., Ltd. 2/F, Blgd. 24, Xili Industrial Park, No.119 Xingguang Road, Xili, Nanshan, Shenzhen, Guangdong, China FCC ID: Y4GCU780-1 Model: CU780-1 Report Type: Original Report Product Type: Two Way Radio Prepared By: Ricky Wang Report Number: R12120312-FCC-SAR Report Date: 2013-01-22 Reviewed By: Quinn Jiang Test Engineer Bay Area Compliance Laboratories Corp. 1274 Anvilwood Avenue, Sunnyvale, CA 94089, USA Tel: (408) 732-9162 Fax: (408) 732 9164 Shenzhen Covalue Communication Co., Ltd. FCC ID: Y4GCU780-1 Report Number: R12120312-FCC-SAR SAR Evaluation Report Page 2 of 67 Summary of Test Results Rule Part(s): FCC §2.1093 Test Procedure(s): FCC OET Bulletin 65-C; IEEE 1528 Device Category: Exposure Category: Two Way Radio Occupational/Controlled Exposure Device Type: Portable Device Modulation Type: FM TX Frequency Range: 136-174 MHz Maximum Conducted Power Tested: 37.31 dBm Antenna Type(s) Tested: External Antenna Body-Worn Accessories: Belt Clip and Remote Speaker Microphone Face-Head Accessories: None Battery Type (s) Tested: Li-Ion: 7.4V/1700mAh Max. SAR Level (s) Measured: Level (W/Kg) Position Operational Mode 0.96 Face Up FM Level (W/Kg) Position Operational Mode 4.045 Back Touch FM Shenzhen Covalue Communication Co., Ltd. FCC ID: Y4GCU780-1 Report Number: R12120312-FCC-SAR SAR Evaluation Report Page 3 of 67 TABLE OF CONTENTS 1 SAR MEASUREMENT RESULTS .................................................................................................................... 5 1.1 TEST ENVIRONMENTAL CONDITIONS .............................................................................................................. 5 2 RF OUTPUT POWER VERIFICATION ........................................................................................................... 6 TEST BLOCK DIAGRAM AND PROCEDURE .................................................................................................................... 6 OUTPUT POWER ........................................................................................................................................................... 6 3 GENERAL DESCRIPTION ................................................................................................................................ 7 3.1 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ....................................................................... 7 3.2 EUT TECHNICAL SPECIFICATION .................................................................................................................... 7 4 TEST FACILITY .................................................................................................................................................. 8 5 REFERENCE, STANDARDS AND GUIDELINES .......................................................................................... 9 5.1 SAR LIMITS ...............................................................................................…

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