R74TC-500Tow-way Radio

1 THANK YOU! We are grateful for your purchase of HYT product. We believe this easy–to-use radio will provide you with dependable and reliable communications. This HYT portable two-way radio is a precision device. Treat it with care, and you will enjoy years of reliable operation. 2 Contents FCC Information User Safety Information Product Inspection Battery Information Accessory Installation Getting Started Features and Operation Basic Operations Time-out Timer (TOT) Battery Save Low Battery Alert Monitor CTCSS & CDCSS Channel Scan Busy Channel Lockout Troubleshooting Guide Care and Cleaning Optional Accessories Specification Frequency Chart 3 FCC Information FCC RF EXPOSURE COMPLIANCE REQUIREMENTS FOR OCCUPATIONAL USE ONLY ◇ The Federal Communications Commission (FCC), with its action in General Docket 93—62,November 7,1997,has adopted a safety standard for human exposure to Radio Frequency (RF) electromagnetic energy emitted by FCC regulated equipment. HYT subscribes to the same safety standard for the use of its products. Proper operation of this radio will result in user exposure far below the Occupational Safety and Health Act(OSHA) AND federal Communications Commission limits. ◇ This radio is NOT approved for use by the general population in an uncontrolled environment. This radio is restricted to occupational use, work related operations only where radio operator muse have the knowledge to control the user’s exposure conditions for satisfying the higher exposure limit allowed for occupational use. ◇ When transmitting, hold the radio in a vertical position with its microphone 2 inches (5 cm) away from your mouth. The radio is transmitting when the red LED on the front of the radio is illuminated. You can cause the radio to transmit by pressing the PTT bar on the radio. ◇ DO NOT transmit 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. These are required operating configurations for meeting FCC RF exposure compliance. Failure to observe these restrictions mean violation. ◇ This equipment complies with the FCC RF Exposure Limits for controlled environments. 4 User Safety Information READ THIS IMPORTANT INFORMATION ON SAFE AND EFFICIENT OPERATION BEFORE USING YOUR HYT PORTABLE TWO-WAY RADIO. ◇ Only qualified technicians are allowed to maintain this product. ◇ To avoid electromagnetic interference and/or compatibility conflicts, turn off your radio in any place where posted notices instruct you to do so. Hospitals or health care facilities may be using equipment that is sensitive to external RF energy. When on aircraft, turn off your radio when airline crew instruct you to do so. ◇ When in vehicles with an airbag, do not place a portable radio in the area over an airbag or in the airbag deployment area. ◇ Turn off your radio prior to entering any area with a potentially explosive atmosphere. Do not remove, install, or charge batteries in such areas. ◇ To avoid possible interference with blasting operations, turn off your radio when you are near electrical blasting caps. ◇ Do not use any portable radio that has a damaged antenna. If a damaged antenna comes into contact with your skin, a minor burn may result. ◇ Do not expose the radio in direct sunlight for a long time nor place it close to a heating source. ◇ When transmitting with a portable radio, hold the radio in a vertical position with its microphone about 5 centimeters away from your mouth. ◇ If you wear a portable two-way radio on your body, ensure that the antenna is at least 2.5 centimeters from your body when transmitting. ◇ The maximum SAR value is 2.180mW/g. Product Inspection Thank you for your use of HYT portable two-way radio. Before use, you are recommended to inspect the product as follows. First check the shipping carton for any signs of damage. If any damage has occurred, please contact your dealer immediately. Confirm the supplied product against the packing slip to assure accuracy. Available Accessories Item Qty. (pcs) Antenna 1 Charger 1 AC Adapter 1 Ni-MH Battery Pack 1 Belt Clip 1 Strap 1 Owner’s Manual 1 *Antenna Mark： 400-420MHz: Red; 5 450-470MHz: White; 136-150MHz: Blue; 150-174MHz: Green. Battery Information Battery Charging Information The battery is not charged by the manufactory. Charge the newly purchased battery or out of use for more than 2 months battery before use. The battery capacity will be optimum only after being charged/discharged for two or three times. When the battery power is lower, please charge it or replace it with a new one. Notices:  Do not short out the battery terminals or dispose of the battery by fire.  Turn off the radio when charging the battery inside the radio.  Remove the radio and the battery from the charger when charging cycle is over. Overcharging will shorten the battery life.  Do not continue charging the battery if it is already fully charged. Or the battery life will be shortened.  Store the battery in a place about 25°C. Charging the battery in less than 10°C temperature will cause the electrolyte leakage and damage the battery.  Charging the battery in over 35°C temperature will affect the battery capacity. Battery Charging Insert the battery or the radio with battery in the charger, and make sure they connect well. Charging begins, red LED glows. The battery is fully charged in about 8 hours. If the battery is charged while the radio is turned on, fully charging time will prolong. Accessory Installation Attach the Battery 1. Insert the tabs, at the bottom of the battery, into the slots at the bottom of the radio chassis. 2. Press the top of the battery towards the radio until a click is heard. (See figure 1) 6 Figure 1 Remove the Battery 1. Turn off the radio. 2. Push the battery latch on the back panel towards the top of the radio. 3. Pull the top of the battery away from the radio chassis, and lift the battery from the radio. (See figure 2) Fi…

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APPENDIX C - EUT EXTERNAL PHOTOGRAPHS EUT – Front View EUT – Rear View EUT – Side View EUT – Back View Antenna View Charger View Adapter View Headset View

APPENDIX A - FCC ID LABELING AND LOCATION Proposed FCC ID Labeling Proposed FCC ID Location

APPENDIX C - EUT INTERNAL PHOTOGRAPHS EUT – Board and Housing View Board – Component View Board – Solder View

Circuit Description 1. Frequency Configuration The receiver utilizes double conversion superheterodyne. The first IF is 45.05MHz and the second is 455KHz. The first local oscillator signal is supplied from PLL circuit. Frequency needed in the transmitter is supplied from PLL circuit. Figure 1 shows the frequency configuration. Frequency Range: 400 MHz—420MHz 450 MHz—470MHz 136 MHz—150MHz 150 MHz—174MHz Figure 1 frequency configuration 2. Receiver The receiver utilizes double conversion superheterodyne. 1) Front-end RF Amplifier The input signal from antenna is amplified in RF amplifier (Q27) after passing through the receive/transmit switch circuit and a 3- stage LC band pass filter. The amplified signals are filtered by a band pass filter (a 3-stage LC BPF) to eliminate unwanted signals before they goes to the first frequency mixer. Figure 2 receiver section configuration 2) The First Mixer The signal from RF amplifier is mixed with the first local oscillator signal from PLL frequency synthesizer in the first mixer (Q23) to generate a 45.05MHz first IF signal. The first IF signal is then fed through two monolithic crystal filters (XF1) to remove spurious signals from adjacent channels. 3) IF Amplifier The first IF signal is amplified in Q22 and then enters the IF process chip IC1. The signal is mixed with the second local oscillator signal in IC1 to create a 455KHz second IF signal. The second IF signal is then fed to a 455KHz ceramics filter (CF1) to eliminate unwanted signals before it is amplified and FM detected in IC1. 4) AF Amplifier The demodulated AF signal obtained from IC1 is amplified in IC7 (1/4), and then filtered by low pass filter Q19 and high pass filter Q20, and then de-emphasized by R130 and C156. The resulting AF signal passes through a volume control circuit and then is amplified to a sufficient level to drive the speaker by AF power amplifier (IC8). 5) Squelch Part of the AF signal from IC1 enters IC1 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 IC1 goes to the analog port of the microprocessor (IC11). IC11 determines whether to output sounds from the speaker by detecting whether the input voltage is higher or lower than preset value. To output sounds from the speaker, IC11 sends a high level signal to the MUTE and AFCO lines and turns IC8 on through Q12. DET FM IF IC1 IF AMP HPF AMP IC7 AF LPF HPF DET 2 39 40 1 SW Q12 SW AF/PF AMP IC7 LPF IC11 MCU B U S Y M U T E A F C O T I IC8 SP Figure 3. AF amplifier and squelch circuit 6) Receive signaling CTCSS/CDCSS Audio frequencies over 300Hz of the output signal from IC1 is cut off by a low-pass filter. The resulting signal enters the microprocessor IC11. IC11 determines whether the CTCSS/CDCSS matches the preset value and controls the MUTE and AFCO and the speaker sound output according to the squelch results. 3. PLL Frequency Synthesizer PLL circuit generates the first local oscillator signal for reception and the RF signal for transmission. 1) PLL Circuit The step frequency of PLL circuit is 2.5KHz or 6.25 KHz. A12.8MHz reference oscillator signal is divided at IC2 by a fixed counter to produce a 2.5 KHz or 6.25 KHz reference frequency. Output signal from voltage control oscillator (VCO) passes through buffer amplifier Q14 and is divided at IC2 by the dual-module programmable counter. The divided signal is compared in the phase comparator IC2 with the 2.5 KHz or 6.25 KHz reference signal. The output signal from phase comparator is filtered through a low-pass filter and passed to the VCO to control the oscillator frequency. (See figure 4) Figure 4 PLL circuit 2) VCO The operating frequency is generated by Q16 in transmit mode and by Q8 in receive mode. The operation frequency generates a voltage through the phase comparator to control the varactor diodes, so as to keep the oscillator frequency consistent with the preset frequency in CPU (D2 and D3 in transmit mode and D7 and D8 in receive mode). T/R pin is set high in receive mode causing Q6 to turn off Q16 and turn Q7 on. The T/R pin is set low in transmit mode. The output from Q8 and Q16 is amplified by Q14 and sent to the buffer amplifier. 4. Transmitter 1) Transmit audio The audio signal from microphone is amplified through IC3, and then pre-emphasized , and then filtered by another low-pass filterseparate filter(Q25 and Q24) to eliminate the frequencies over 3KHz. The resulting signal enters the VCO for direct FM modulation. (See figure 5) 2) CTCSS/CDCSS Encoder The necessary frequency for CTCSS/CDCSS encoder is generated by IC11 and FM-modulated to the PLL reference signal. Since the reference OSC does not modulate the loop characteristic frequency or higher, modulation is performed at the VCO side by splitter. (See figure 5) Fig ure 5 transmit CTCSS 3) RF amplifier The transmit signal obtained from VCO buffer amplifier Q14 is amplified by Q15 and Q17. This amplified signal is passed to power amplifier Q32 and Q31, and is capable of producing a 4.0W RF power. 4) Antenna Switch and LPF The RF amplifier output signal is passed through a low-pass filter network and a transmit/receive switch circuit before it is passed to the antenna terminal. The transmit/receive switch circuit is comprised of D11 and D12. D11 and D12 is turned on in transmit mode and off in receive mode. 5. Power The 5V reference power supply for the control circuit is derived from an internal battery. The reference power provides a 5V supply in transmit mode [T_V], a 5V supply in receive mode [R_V], and a 5V supply shared in both modes based the control signal from the microprocessor. 6. Control System The IC11 CPU operates at 7.3728MHz.

Adjustment Description The radio can be adjusted with PC programming software or by manual adjustment. Manual adjustment procedure of TC-500 is as follow. Instrument: Radio Communication Test Set 1 set Scanner 1 set 3A/10V Power Supply 1 set Digital Voltmeter 1 set 3A Ammeter 1 set Adjustment: 1. Initializing: It’s necessary to set the model and initialize the radio before alignment because there is no needed information in EEPROM when the radio is manufactured. Please refer to the “model set mode” in the section Software Description for details. 2. Adjustment: Some items can be adjusted in conventional communication mode and the others in manual adjust mode. Turn on the power, the radio enters conventional communication mode. If manual adjust mode is enabled, turn on the power while holding down PTT and MONI simultaneously, the radio enters manual adjust mode after 2 seconds. (Refer to the section Software Description.) VCO Measurement Adjustment Item Condition Test InstrumentTerminalPart Method Specification /Remarks 1.Power supply 1.power voltage DC 6V 1.TX High. Turn to CH15 in manual adjust mode and press PTT. 3.0V±0.1V 2.Transmit VCO lock voltage 2.TX Low. Turn to CH14 in manual adjust mode and press PTT. TC1 >0.7V 1.RX High. Turn to CH15 in manual adjust mode. 2.6V±0.1V 3. Receive VCO lock voltage 2.RX Low. Turn to CH14 in manual adjust mode. Digital Voltmeter CV TC2 >0.7V Note: If transmit VCO can’t lock, you can enter manual adjust mode to check. (In manual adjust mode, the radio can transmit whether VCO lock or not. RECEIVER: (Enter the manual adjust mode) Measurement Adjustment Item Condition Test Instrument Terminal Part Method Specification /Remarks 4. Band Pass Filter 1.RX Center. Turn to CH13 in manual adjust mode. Scanner ANT . TP2 TC3 TC4 TC5 Adjust the waveform to the top, and the top is flat, the bandwidth is about 20MHz, the sign of RX central frequency is at the middle of the waveform. 1.RX Center. Turn to CH13 in manual adjust mode. 2. RX Low. Turn to CH14 in manual adjust mode. 5.sensitivity 3.RX High. Turn to CH15 in manual adjust mode. Radio Communica- tion Test Set SSG output: -118dBm MOD:1KHz DEV:±3kHz FILER: 0.3- 3.4kHz ANT Speaker Jack Check SINAD: 12dB or higher 1.RX Center. Turn to CH2 in manual adjust mode. Adjust by pressing PTT or MONI. Radio Communic- ation Test Set SSG output: - 117dBm Level 9 Adjust to just close the squelch. Adjust squelch level 9 6.Squelch 2.RX Center. Turn to CH3 in manual adjust mode. Adjust by pressing PTT or MONI. Radio Communic- ation Test Set SSG output: - 125dBm ANT Speaker Jack Level 3 Adjust to just close the squelch. Adjust squelch level 3 Transmitter Measurement Adjustment Item Condition Test equipment TerminalParts Method Specification /Remarks 7.Transmit frequency 1.TX Center. Turn to CH13 in manual adjust mode and press PTT. Radio Communica- tion Test Set ANT TC6 Adjust it to center frequency Error≤±250Hz 8.Max. Deviation 1.TX Center. Turn to CH13 in manual adjust mode and press PTT. Radio Communica- tion Test Set LPF: 15KHz AF:1KHz 120mV ANT MIC Jack VR2 Adjust deviation to: 4.2kHz±100Hz 9. Modulation Sensitivity 1.TX Center. Turn to CH13 in manual adjust mode and press PTT. Radio Communica- tion Test Set FILER: 0.3-3.4KHz AF:1KHz 7mV ANT MIC Jack Check deviation: 2.2kHz- 3.6kHz 1. TX Center. CTCSS: 67.0Hz. Turn to CH4 in manual adjust mode. 67.0Hz CTCSS 10. CTCSS Balance 2. TX Center. CTCSS:250.3Hz. Turn to CH16 in manual adjust mode and press PTT. Radio Communica- tion Test Set LPF:300Hz ANT VR3 Adjust VR3, deviation tested on condition 1 and condition 2 are consistent, the difference≤200Hz 250.3Hz CTCSS 11. CTCSS Deviation 1. TX Center. CTCSS: 67.0Hz. Turn to CH4 in manual adjust mode. Adjust by pressing PTT or MONI. Adjust deviation to: 0.65kHz±100Hz 12. CDCSS Deviation 1. TX Center. CDCSS: 023. Turn to CH5 in manual adjust mode. Adjust by pressing PTT or MONI. Radio Communica- tion Test Set LPF: 300Hz ANT Adjust deviation to: 0.65kHz±100Hz 13. Low Battery Alert Level 1. Turn to CH1 in manual adjust mode. Adjust the power supply voltage at 5.3V. Adjust by pressing PTT or MONI. Digital Voltmete r Adjust the level to make LED just flash. Note: In manual adjust mode, when channel selector knob is positioned at channel 1-channel16, MIC jack can’t connect with external cables. After adjustment is completed, short out the two SELF points and then turn the power on, the radio enters model set mode. Then press PTT to disable the manual adjust mode.

Note: This test report is specially limited to the above client company and the product model only. It may not be duplicated without prior written consent of Bay Area Compliance Laboratory Corporation. This report must not be used by the client to claim product endorsement by NVLAP or any agency of the U.S. Government. SAR EVALUATION REPORT For SHENZHEN HYT SCIENCE & TECHNOLOGY CO., LTD R2-High-Tech Industrial Park ShenZhen, China FCC ID: R74TC-500 This Report Concerns: Original Report Equipment Type: Two-way Radio Test Engineer: Eric Hong Report No.: R0408189S Report Date: 2004-10-12 Reviewed By: Daniel Deng Prepared By: Bay Area Compliance Laboratory Corporation 230 Commercial Street Sunnyvale, CA 94085 Tel: (408) 732-9162 Fax: (408) 732 9164 SHENZHEN HYT SCIENCE & TECHNOLOGY CO., LTD FCC ID: R74TC-500 Report #R0408189S.doc SAR Evaluation Report Page 2 of 58 TABLE OF CONTENTS SUMMARY....................................................................................................................................................................3 1 - REFERENCE ...........................................................................................................................................................4 2 - TESTING EQUIPMENT.........................................................................................................................................5 2.1 EQUIPMENT LIST & CALIBRATION INFO................................................................................................................5 2.2 EQUIPMENT CALIBRATION.....................................................................................................................................5 3 - EUT DESCRIPTION .............................................................................................................................................29 4 - SYSTEM TEST CONFIGURATION...................................................................................................................30 4.1 JUSTIFICATION.....................................................................................................................................................30 4.2 EUT EXERCISE PROCEDURE................................................................................................................................30 4.3 EQUIPMENT MODIFICATIONS...............................................................................................................................30 5 - CONDUCTED OUTPUT POWER MEASUREMENT......................................................................................31 5.1 MEASUREMENT PROCEDURE................................................................................................................................31 5.2 TEST RESULTS OF MAXIMUM OUTPUT POWER.....................................................................................................31 6 - DOSIMETRIC ASSESSMENT SETUP...............................................................................................................32 6.1 MEASUREMENT SYSTEM DIAGRAM.....................................................................................................................33 6.2 SYSTEM COMPONENTS.........................................................................................................................................34 6.3 MEASUREMENT UNCERTAINTY............................................................................................................................38 7 - SYSTEM EVALUATION .....................................................................................................................................39 7.1 SIMULATED TISSUE LIQUID PARAMETER CONFIRMATION...................................................................................39 7.2 EVALUATION PROCEDURES..................................................................................................................................39 7.3 SYSTEM ACCURACY VERIFICATION.....................................................................................................................40 7.4 SAR EVALUATION PROCEDURE...........................................................................................................................43 7.5 EXPOSURE LIMITS................................................................................................................................................44 8 - TEST RESULTS ....................................................................................................................................................45 8.1 SAR TEST DATA..................................................................................................................................................45 8.2 PLOTS OF TEST RESULT.......................................................................................................................................45 EXHIBIT A - SAR SETUP PHOTOGRAPHS .........................................................................................................50 2.5CM HEAD SEPARATION TO FLAT PHANTOM..........................................................................................................50 BACK IN TOUCH WITH PHANTOM WITH POUCH AND HEADSET..................................................................................50 BACK IN TOUCH WITH PHANTOM WITH POUCH AND MICRPHONE..............................................................................51 BACK IN TOUCH WITH PHANTOM WITH BELT CLIP AND MICROPHONE......................................................................51 EXHIBIT B - EUT PHOTOGRAPHS .......................................................................................................................52 EUT – FRONT VIEW..................................................................................................................................................52 EUT – REAR VIEW..............................…

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SHENZHEN HYT SCIENCE & TECHNOLOGY CO., LTD FCC ID: R74TC-500 Report #R0408189S.doc SAR Evaluation Report Page 31 of 58 5 - CONDUCTED OUTPUT POWER MEASUREMENT 5.1 Measurement Procedure 1. Place the EUT on a bench and set it in transmitting mode. 2. Remove the antenna from the EUT and then connect a low loss RF cable from the antenna port to a spectrum analyzer. 3. Add a correction factor to the display. 5.2 Test Results of Maximum Output Power Channel Output Power in dBm Output Power in W 450.01 36.50 4.467 Note: The power output may depend on the intended use of the EUT. For all tests, the EUT was set to maximum conditions. EUT Attenuator SA SHENZHEN HYT SCIENCE & TECHNOLOGY CO., LTD FCC ID: R74TC-500 Report #R0408189S.doc SAR Evaluation Report Page 32 of 58 6 - DOSIMETRIC ASSESSMENT SETUP These measurements were performed with the automated near-field scanning system DASY3 from Schmid & Partner Engineering AG (SPEAG). The system is based on a high precision robot (working range greater than 0.9m) which positions the probes with a positional repeatability of better than ±0.02mm. Special E- and H-field probes have been developed for measurements close to material discontinuity, the sensors of which are directly loaded with a Schottky diode and connected via highly resistive lines to the data acquisition unit. The system is described in detail in [3]. The SAR measurements were conducted with the dosimetric probe ET3DV2 SN: 3019 (manufactured by SPEAG), designed in the classical triangular configuration [3] and optimized for dosimetric evaluation. The probe has been calibrated according to the procedure described in [7] with accuracy of better than ±10%. The spherical isotropy was evaluated with the procedure described in [8] and found to be better than ±0.25dB. The phantom used was the \Generic Twin Phantom” described in [4]. The ear was simulated as a spacer of 4 mm thickness between the earpiece of the phone and the tissue simulating liquid. The Tissue simulation liquid used for each test is in according with the FCC OET65 supplement C as listed below. Frequency (MHz) Ingredients (% by weight) 450 835 915 1900 2450 Tissue Type Head Body Head Body Head Body Head Body Head Body Water 38.56 51.16 41.45 52.4 41.05 56.0 54.9 40.4 62.7 73.2 Salt (Nacl) 3.95 1.49 1.45 1.4 1.35 0.76 0.18 0.5 0.5 0.04 Sugar 56.32 46.78 56.0 45.0 56.5 41.76 0.0 58.0 0.0 0.0 HEC 0.98 0.52 1.0 1.0 1.0 1.21 0.0 1.0 0.0 0.0 Bactericide 0.19 0.05 0.1 0.1 0.1 0.27 0.0 0.1 0.0 0.0 Triton x-100 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 36.8 0.0 DGBE 0.0 0.0 0.0 0.0 0.0 0.0 44.92 0.0 0.0 26.7 Dielectric Constant 43.42 58.0 42.54 55.2 42.0 55.9 39.9 53.3 39.8 53.6 Conductivity (s/m) 0.85 0.83 0.91 0.97 1.0 0.98 1.42 1.52 1.88 1.81 SHENZHEN HYT SCIENCE & TECHNOLOGY CO., LTD FCC ID: R74TC-500 Report #R0408189S.doc SAR Evaluation Report Page 33 of 58 6.1 Measurement System Diagram The DASY3 system for performing compliance tests consist of the following items: 1. A standard high precision 6-axis robot (Stäubli RX family) with controller and software. 2. An arm extension for accommodating the data acquisition electronics (DAE). 3. A dosimetric probe, i.e., an isotropic E-field probe optimized and calibrated for usage in tissue simulating liquid. The probe is equipped with an optical surface detector system. 4. A data acquisition electronic (DAE), which performs the signal amplification, signal multiplexing, AD-conversion, offset measurements, mechanical surface detection, collision detection, etc. The unit is battery powered with standard or rechargeable batteries. The signal is optically transmitted to the EOC. 5. A unit to operate the optical surface detector, which is connected to the EOC. The Electro-optical coupler (EOC) performs the conversion from the optical into a digital electric signal of the DAE. The EOC is connected to the PC plug-in card. The functions of the PC plug-in card based on a DSP is to perform the time critical task such as signal filtering, surveillance of the robot operation fast movement interrupts. 6. A computer operating Windows 95 or larger 7. DASY3 software 8. Remote control with teaches pendant and additional circuitry for robot safety such as warning lamps, etc. 9. The generic twin phantom enabling testing left-hand and right-hand usage. 10. The device holder for handheld EUT. 11. Tissue simulating liquid mixed according to the given recipes (see Application Note). 12. System validation dipoles to validate the proper functioning of the system. SHENZHEN HYT SCIENCE & TECHNOLOGY CO., LTD FCC ID: R74TC-500 Report #R0408189S.doc SAR Evaluation Report Page 34 of 58 6.2 System Components ET3DV6 Probe Specification Construction Symmetrical design with triangular core Built-in optical fiber for surface detection System Built-in shielding against static charges Calibration In air from 10 MHz to 2.5 GHz In brain and muscle simulating tissue at Frequencies of 450 MHz, 900 MHz and 1.8 GHz (accuracy ± 8%) Frequency 10 MHz to > 6 GHz; Linearity: ± 0.2 dB (30 MHz to 3 GHz) Directivity ± 0.2 dB in brain tissue (rotation around probe axis) ± 0.4 dB in brain tissue (rotation normal probe axis) Dynamic 5 mW/g to > 100 mW/g; Range Linearity: ± 0.2 dB Surface ± 0.2 mm repeatability in air and clear liquids Photograph of the probe Detection over diffuse reflecting surfaces. Dimensions Overall length: 330 mm Tip length: 16 mm Body diameter: 12 mm Tip diameter: 6.8 mm Distance from probe tip to dipole centers: 2.7 mm Application General dosimetric up to 3 GHz Compliance tests of mobile phones Fast automatic scanning in arbitrary phantoms The SAR measurements were conducted with the dosimetric probe ET3DV6 designed in the classical triangular configuration and optimized for dosimetric evaluation. The probe is constructed using the thick film technique; with printed resistive lines on ceramic substrates. The probe is equipped with an optical multi-fiber line ending at the front of the probe tip. It is connected to the EOC box on t…

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Note: The test report is specially limited to the above company and the product model only. It may not be duplicated without prior written consent of Bay Area Compliance Laboratory Corporation. This report must not be used by the client to claim product certification, approval, or endorsement by NVLAP, NIST or any agency of the US Government. FCC PART 90 TYPE APPROVAL EMI MEASUREMENT AND TEST REPORT For SHENZHEN HYT SCIENCE & TECHNOLOGY CO., LTD R2-High-Tech Industrial Park ShenZhen, China FCC ID: R74TC-500 This Report Concerns: Original Report Equipment Type: Two-way Radio Test Engineer: Benjamin Jin Report No.: R0408189 Report Date: 2004-10-12 Reviewed By: Daniel Deng Prepared By: Bay Area Compliance Laboratory Corporation 230 Commercial Street Sunnyvale, CA 94085 Tel: (408) 732-9162 Fax: (408) 732 9164 Shenzhen HYT Science & Technology Co., Ltd FCC ID: R74TC-500 Report # R0408189Rpta.doc Page 2 of 24 FCC Part 90 Type Approval Report TABLE OF CONTENTS GENERAL INFORMATION.......................................................................................................................................4 PRODUCT DESCRIPTION FOR EQUIPMENT UNDER TEST (EUT) ....................................................................................4 OBJECTIVE..............................................................................................................................…

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