R74-TC1600FM Handheld Transceiver

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. MODELS COVERED IN THIS MANUAL TC-1600 UHF Two-way Radio TC－1600 Owner’s Manual 1 CONTENTS User Safety, Training, and General Information Compliance with RF Energy Exposure Standards FCC Compliance Precautions Product Inspection Battery Information Accessory Installation Getting Started LCD Display Features and Operations Basic Operation Turning On/Off the Radio Operations under Radio Modes Conventional Mode Clock and Alarm Clock Setting Mode Channel Setting Mode Menu Mode PC Programming Mode Wired Clone Mode Default Setting Mode Appendix 1: Channel Frequency Appendix 2: CTCSS Table Appendix 3: CDCSS Table Troubleshooting Guide Care and Cleaning Optional Accessories Frequency Chart TC－1600 Owner’s Manual 2 User Safety, Training, and General Information READ THIS IMPORTANT INFORMATION ON SAFE AND EFFICIENT OPERATION BEFORE USING YOUR HYT PORTABLE TWO-WAY RADIO. Compliance with RF Energy Exposure Standards You r HYT two-way radio is designed and tested to comply with a number of national and international standards and guidelines (listed below) regarding human exposure to radio frequency electromagnetic energy. This radio complies with the IEEE (FCC) and ICNIRP exposure limits for occupational/controlled RF exposure environment at duty cycles of up to 50% talk-50% listen and should be used for occupational use only. In terms of measuring RF energy for compliance with the FCC exposure guidelines, your radio radiates measurable RF energy only while it is transmitting (during talking), not when it is receiving (listening) or in standby mode. Note: The approved batteries supplied with this radio are rated for a 5-5-90 duty cycle (5% talk-5% listen-90% standby), even though this radio complies with the FCC occupational RF exposure limits at duty cycles of up to 50% talk. Your HYT two-way radio complies with the following of RF energy exposure standards and guidelines: z United States Federal Communications Commission, Code of Federal Regulations; 47CFR part 2 sub-part J z American National Standards Institute (ANSI)/Institute of Electrical and Electronic Engineers (IEEE) C95. 1-1992 z Institute of Electrical and Electronic Engineers (IEEE) C95. 1-1999 Edition z International Commission on Non-Ionizing Radiation Protection (ICNIRP) 1998 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. Body-worn operation z Always place the radio in an HYT approved clip, holder, holster, case, or body harness for this product. Use of non-HYT-approved accessories may exceed FCC RF exposure guidelines. TC－1600 Owner’s Manual 3 Antennas & Batteries z Use only HYT approved, supplied antenna or HYT approved replacement antenna. Unauthorized antennas, modifications, or attachments could damage the radio and may violate FCC regulations. z Use only HYT approved, supplied batteries or HYT approved replacement batteries. Use of non- HYT -approved batteries may exceed FCC RF exposure guidelines. Approved Accessories For a list of HYT approved accessories, see the accessories page of this user manual or visit the following website which lists approved accessories: http://www.HYT.com.cn FCC Information TC－1600 Owner’s Manual 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 or 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 communication range will be impacted in rainy or cloudy days or when you are in forest. TC－1600 Owner’s Manual 5 Product Inspection Thank you for your use of HYT portable two-way radio TC-1600. 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) Battery 1 Desktop Charger 1 Switch power 1 Belt Clip 1 Strap 1 Owner’s Manual 1 TC－1600 Owner’s Manual 6 Battery Info…

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55 44 33 22 11 D D C C B B A A NOISE AMP X601 APA-EN CLK NJM2904 DET 24C08 AGC X101 SEG1-12 U604 U201B Q601 D401 COM1-4 M38C2X RESET MCU EEPROM ACTIVE FILTER VOX-DET D502 RX-CTRL FINAL AMP HI-LOW D104 D603 MA2Z077 PTT Z503 MODULATION 2nd LO ACTIVE FILTER MIC Q602 MA742 Q207 CALL TX-CTRL TI Q204 LO SW MOD LPF 3R D203 MONI TX-CTRLTIBI NOISE DETECT D402 MC3361 MOD VOX-DET RP201 RX-CTRLTONE Z501 U501 U101 3T ANT SDA AMP/HPF UP AMP 450KHz Q205 ANT SW MA2Z077 TO SCL VOLUME CTRL DOWN SQ MCD8825 W601 TO VDD IF SYSTEM MENU EXT-MIC RP602 MOD TO J201 VCC MIC-EN KEY ARRAY EXT-PTT ANT SW TI D501 1st MIXER TXD LCD PLL SYSTEM SQ VCO-CTRL DATA BAT-DET LOOP FILTER TIBI RX-MUTE READ/WRITE Q403 Q206 RXD ST-CTRL 4.9152MHz RP601 21.25MHz EN J202 T/RAF-SW U603 LD Q105 AMP INPUT PORTOUTPUT PORT TCXO MA742 MA360 465MHz SAW FILTER DRIVE AMP 2SC5754 Q402 AMP 2SC4226 Q401 MA2S077 AMP 2SC5108 Q104 2SC5108 BUFF AMP Q103 2SK508NV VCO Q102 RF AMP Q501 2SC4226 2SC4226 Q502 2SC4226 Q503 IF AMP 2SC5343 Q202 D202 MA2S077 1SS372 DET D201 SW NJM2904 LIMITER AMP U201A Q603AMP BC847AW SL5020 U202 COMPANDER SPEAKER AF-SW Q210 DC SWITCH Q211 2SK1588 DC SWITCH Q209 Q208 TDA2822 U203 APA-EN AUDIO AMP DC SWITCH DTC144EE FMMT717 S601 Q203 ST-CTRL DC SWITCH 2SA1576 RX-MUTE 2SC5343 2SC5343 BC847AW ACTIVE FILTER B D U301 CTC-DET NJM2902V C CRYSTAL FILTER Z502 21.7MHz BC847AW U601 BATTERY AAT3215 AAT3215 3.6V U602 2SA15762SA1576 VCO-CTRL R3112 U605 D102D103 FREQ-CTRL MA2S376 2SC5108 I/O PORT L506 DET COIL 3C TONE TONE 2SC5343 Q106 3C MIC-EN 3R VDD AF NJM2902V LPF A U301 RIPPLE FILTER VDD VBAT S601 POWER SWITCH BAT+ VBAT Q404 2SK1824 HI-LOW DC SWITCH R404 VBAT NE5510279A 2nd LO 3R 1.0 11 Thursday, June 01, 2006 BLOCK DIAGRAM HYT-RD-BLD-CD- TC-1600 Model Name: Prepare: File No.: Rev: Date:Page: of Part Name: HYT Science&technology Co.Ltd. Check: Approve:

SHENZHEN HUATONGWEI INTERNATIONAL INSPECTION CO., LTD REPORT NO: WE06090002 FCC ID: R74-TC1600 DATE: 10/08/2006 Page 41 Rev. 00 Top view of EUT Bottom view of EUT SHENZHEN HUATONGWEI INTERNATIONAL INSPECTION CO., LTD REPORT NO: WE06090002 FCC ID: R74-TC1600 DATE: 10/08/2006 Page 42 Rev. 00 Right view of EUT Left view of EUT SHENZHEN HUATONGWEI INTERNATIONAL INSPECTION CO., LTD REPORT NO: WE06090002 FCC ID: R74-TC1600 DATE: 10/08/2006 Page 43 Rev. 00 Front view of EUT Back view of EUT

Applicant: SHENZHEN HYT SCIENCE &TECHNOLOGY CO., LTD. FCC ID: R74-TC1600 FCC ID: R74-TC1600 The FCC identifier is marked in the product label And the RF exposure caution label is attached on the rear side of the cabinet. The user notice and warning statement are described in the user manual. . Proposed Label Location on EUT The label shown above 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) Rear Side of EUT, battery removed / Proposed Label Location

SHENZHEN HUATONGWEI INTERNATIONAL INSPECTION CO., LTD REPORT NO: WE06090002 FCC ID: R74-TC1600 DATE: 10/08/2006 Page 44 Rev. 00 Detached view of EUT-1 Detached view of EUT-2 SHENZHEN HUATONGWEI INTERNATIONAL INSPECTION CO., LTD REPORT NO: WE06090002 FCC ID: R74-TC1600 DATE: 10/08/2006 Page 45 Rev. 00 Detached view of EUT-3 Detached view of EUT-4

Circuit Description 1． Frequency Configuration The receiver utilizes double conversion super heterodyne. The first IF is 21.7 MHz and the second is 450KHz. The first local oscillator signal is supplied from PLL circuit. PLL circuit in the transmitter generates the necessary frequencies. Figure 1 shows the frequency configuration. Frequency range: 460—470MHz (For the detail, please refer to the Appendix I: TC-1600 Frequency Table) 450KHz SYSTEM AMP 460-470MHz RF MIC 21.7MHz 1st LO ANT BPF AMP ANT CF MIC AMP 438.3-448.3MHz TCXO IFRF RF 2nd LO 21.25MHz AMP MCF 1st MIXER SPEAKER 21.25MHz SW PLL IC AMP VCO AF 460-470MHz Fig1. Frequency Configuration 2． Receiver The receiver utilizes double conversion super heterodyne. 1) Front-end RF Amplifier The signal from the antenna passes through a transmit/receive switch circuit before entering the SAW filter Z501 to eliminate unwanted signals, and then is amplified at RF amplifier Q501. The processed amplified signal then goes to the first mixer. 465MHz PLL BPF SYSTEM U501 ANT U203 IF ANT 21.7MHz Q502 CF SPEAKER Z501 2nd LO 1st SW IF AMP Q501 AF AMP Q503 21.25MHz D501 Z503 MCF Z502 CTC-DET 1st LO RF AMP MIXER Fig.2 Receiver Section Configuration 2） First Mixer The signal from RF amplifier is mixed with the first local oscillator signal from PLL frequency synthesizer in the first mixer Q502 to generate a 21.7 MHz first IF signal. The first IF signal is then fed through the 21.7MHz crystal filter Z502 to remove spurious signals from adjacent channel. 3) IF Amplifier The first IF signal is amplified at Q503, which then enters the IF processing chip U501. The signal is mixed with the second local oscillator signal to generate a 450KHz second IF signal. The second IF signal is then fed to a 450KHz ceramic filter Z503 to eliminate unwanted signals before it is amplified and detected at U501. 4) AF Amplifier The AF signal obtained from U501 is filtered in U301A, and then amplified in Q207. Then the processed AF signal passes through an AF squelch switch U202 and a volume control circuit and then is amplified in an AF power amplifier U203to drive the speaker. 5) Squelch Part of the AF signal from U501 enters U501 again and the noise component is amplified by a filter and an amplifier, and then enters Q206 to amplify the noise further. After rectified and filtered by D203 and C331, the DC signals goes to the analog port U604 of the microprocessor. U604 determines whether to output sounds from the speaker by detecting whether the input voltage is higher or lower than the preset value. To output sounds from the speaker, U604 sends a mute and an AF control signal APA-EN to U203. (See figure 3) D203 MCU APA-EN U301 EXPANDER SQ U604 SPEAKER AMP RX-MUTE AF AMP U202 Q210 B,C,D IF IC FILTER Q207 Q211 DET Q206 AMP DET U501 NOISE TI LPF NOISE SW U203 AMP AMP AF-SW U301A Fig. 3 AF Amplifier & Squelch Circuit 6) Receiving CTCSS/CDCSS signal The 300Hz-and-higher audio frequency of the signal output from U501 is filtered by low-pass filter U301-B, C, D. The processed signal enters the microprocessor U604 which determines whether the CTCSS/ CDCSS matches the pre-set value, and controls the RX-MUTE, APA and the speaker output sounds according to the squelch result. 3. PLL 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 6.25KHz, 10 KHz or 12.5 KHz. A 21.25MHz reference oscillator signal is divided at U101 by a mixed counter to create a 6.25KHz, 10 KHz or 12.5 KHz reference frequency. Output signal from VCO enters the 16 pin of U101 and is divided at U101 by a programmable pulse swallow counter. The divided signal is compared in the phase comparator U101 with a 6.25KHz, 10 KHz or 12.5 KHz reference signal. The signal from phase comparator is filtered through a low-pass filter and generates a VCO voltage added to varactor diodes D102 and D103 to control the oscillator frequency. (See Figure 4) 5/6.25KHz D102 BUFF Q101 I/N 21.25MHz T/R 5/6.25KHz CHARGE D103 X101 I/M COMPARATOR PUMP VCO SW OSC Q102 REF LPF PLL IC AMP Q103 TCXO U101 Q105 PLL DATA PHASE Fig.4 PLL Circuit 2） VCO Q102 composes Colpitts oscillator circuit together with the peripheral circuit. The oscillator frequency is controlled by PLL. In receive mode, the oscillator frequency is the first local oscillator frequency for reception. In transmit mode, the oscillator frequency is the RF frequency for transmission. 4． Transmitter 1) Transmitting AF The AF signal from the microphone passes through a pre-emphasis circuit, is amplified and filtered by a low-pass filter at U202-A, B and Q204, Q205. The processed signal enters VCO for direct modulation. (See figure 5) 2) CTCSS/CDCSS Encoder The necessary signal for 38 groups of CTCSS and 83 groups of CDCSS encoder is generated and outputted by TO pin of U604 to adjust the reference frequency of PLL circuit. Because the reference oscillator is unable to modulate the frequency outside PLL feature, it is modulated by the distributor at one side of the VCO. (See fig.5) MIC-EN Q204 SPLATTER FILTER DEV Q102 U202PREEMPHASIS X101 U201A VCO REF U201B RP602 OSC MIC RP201 TO CPU TONE U604 COMPRESSOR Q205 Fig 5.Transmit AF and CTCSS/CDCSS 3) RF Amplifier The RF signal obtained from VCO buffer amplifier is amplified by Q104. The amplified signal is amplified by power amplifier Q401, Q402 and Q403 to generate RF power. (See Fig.6) AMP LPF Q401 FINAL ANT Q404 Q402 ANT SW RX AMP ANT SW Q104 H/L CTRL Q403 AMP DRIVE D402 DC SW AMP D501 Fig.6 Transmit Module 4） Antenna Switch and LPF The RF signal is passed through a low-pass filter network and a transmit/receive switch (D402 and D501) before it is passed to the antenna terminal. D402 is turned on in transmit mode and off in receive mode. 5． Power Supply U602 supplies stabilized power for the control circuit. In transmit mode, U601 is turned on and supplies voltage for the transmit VCO; Q602 is turned on and supplies operati…

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No Material No Material Description Ref.No. Address 1 3104071040010 Ta-capacitor 0805 0.1UF M 20V C101 B6H 2 3104081550010 Ta-capacitor 1206 1.5UF M 10V C102 B6G 3 3104073340000 Ta-capacitor 0805 0.33UF±20% 20V C103 B5G 4 3101051010020 Chip capacitor 0402 100PF J 50V C104 B4G 5 3101051010020 Chip capacitor 0402 100PF J 50V C105 B5G 6 3101054710010 Chip capacitor 0402 470PF K 50V C106 B4F 7 3101054710010 Chip capacitor 0402 470PF K 50V C107 B4F 8 3101052200010 Chip capacitor 0402 22PF J 50V C108 B4G 9 3101050300000 Chip capacitor 0402 3PF B 50V C109 B4F 10 3102992000040 Trimmer capacitor 3.2*2.5*1.25mm 10P 55V C110 B4F 11 3101050100030 Chip capacitor 0402 1PF B 50V C111 B3F 12 3101054710010 Chip capacitor 0402 470PF K 50V C112 B2F 13 3101054710010 Chip capacitor 0402 470PF K 50V C113 B3F 14 3104074750030 Ta-capacitor 0805 4.7UF M 10V C114 B2F 15 3101052490010 Chip capacitor 0402 2.4PF B 50V C115 B3G 16 3101050300000 Chip capacitor 0402 3PF B 50V C116 B4G 17 3101050300000 Chip capacitor 0402 3PF B 50V C117 B3G 18 3101050590020 Chip capacitor 0402 0.5PF B 50V C118 B3G 19 3101051040060 Chip capacitor 0402 0.1UF K 16V C119 B3F 20 3101054710010 Chip capacitor 0402 470PF K 50V C120 B3F 21 3101054710010 Chip capacitor 0402 470PF K 50V C121 B2F 22 3101050600010 Chip capacitor 0402 6PF B 50V C122 B3G 23 3101052200010 Chip capacitor 0402 22PF J 50V C123 B3G 24 3101054710010 Chip capacitor 0402 470PF K 50V C124 B2F 25 3101054710010 Chip capacitor 0402 470PF K 50V C125 B2G 26 3101050600010 Chip capacitor 0402 6PF B 50V C126 B2G 27 3104071050010 Ta-capacitor 0805 1UF M 16V C127 B5F 28 3101054710010 Chip capacitor 0402 470PF K 50V C128 B3F 29 3101051010020 Chip capacitor 0402 100PF J 50V C129 B6H 30 3101051010020 Chip capacitor 0402 100PF J 50V C130 B6H 31 3101051010020 Chip capacitor 0402 100PF J 50V C131 B6H 32 3101051020010 Chip capacitor 0402 1000PF K 50V C132 B6H 33 3101051010020 Chip capacitor 0402 100PF J 50V C133 B6H 34 3104074750030 Ta-capacitor 0805 4.7UF M 10V C134 B5G 35 3101051020010 Chip capacitor 0402 1000PF K 50V C135 B6H 36 3101051000020 Chip capacitor 0402 10PF J 50V C136 B4H 37 3101051000020 Chip capacitor 0402 10PF J 50V C137 B4H 38 3104071060010 Ta-capacitor 0805 10UF M 6.3V C138 B5H 39 3101054710010 Chip capacitor 0402 470PF K 50V C139 B4H 40 3101054710010 Chip capacitor 0402 470PF K 50V C140 B5H 41 3101051000020 Chip capacitor 0402 10PF J 50V C141 B4G 42 3101051040060 Chip capacitor 0402 0.1UF K 16V C142 B3H 43 3101054710010 Chip capacitor 0402 470PF K 50V C143 B4H 44 3101050300000 Chip capacitor 0402 3PF B 50V C144 B3H 45 3001050000000 Chip resistor 0402 0Ω J 1/16W C145 B4G 46 3101051040060 Chip capacitor 0402 0.1UF K 16V C146 B3H 47 3101054710010 Chip capacitor 0402 470PF K 50V C147 B4F 48 3101051020010 Chip capacitor 0402 1000PF K 50V C148 B2F 49 3101054700010 Chip capacitor 0402 47PF J 50VT C149 B4H 50 3101050300000 Chip capacitor 0402 3PF B 50V C150 B4G 51 3101050500010 Chip capacitor 0402 5PF B 50V C151 B5H 52 3101050500010 Chip capacitor 0402 5PF B 50V C152 B4H 53 3101051010020 Chip capacitor 0402 100PF J 50V C201 B6F 54 3101051040060 Chip capacitor 0402 0.1UF K 16V C202 B6G 55 3101051050000 Chip capacitor 0402 1UF K 6.3V C203 T4B 56 3101051010020 Chip capacitor 0402 100PF J 50V C204 T6C 57 3101051040060 Chip capacitor 0402 0.1UF K 16V C205 T4F 58 3101052230000 Chip capacitor 0402 0.022UF K 16V C206 T5G 59 3101052230000 Chip capacitor 0402 0.022UF K 16V C207 T5G 60 3101051010020 Chip capacitor 0402 100PF J 50V C208 T5G 61 3101051020010 Chip capacitor 0402 1000PF K 50V C209 T5G 62 3101051050000 Chip capacitor 0402 1UF K 6.3V C210 T5H 63 3101051040060 Chip capacitor 0402 0.1UF K 16V C211 T5H 64 3101051040060 Chip capacitor 0402 0.1UF K 16V C212 T5G 65 3104082250030 Ta-capacitor 1206 2.2UF K 16V C213 T6G 66 3101051040060 Chip capacitor 0402 0.1UF K 16V C214 T6G 67 3101051030020 Chip capacitor 0402 0.01UF K 25V C215 T5G 68 3101051020010 Chip capacitor 0402 1000PF K 50V C216 T5G 69 3101051010020 Chip capacitor 0402 100PF J 50V C217 T5G 70 3101052230000 Chip capacitor 0402 0.022UF K 16V C218 T5F 71 3101051030020 Chip capacitor 0402 0.01UF K 25V C219 B6F 72 3101072250020 Chip capacitor 0805 2.2UF Z 16V C220 B6E 73 3104081060080 Ta-capacitor 1206 10UF M 10V C221 B6E 74 3101072250020 Chip capacitor 0805 2.2UF Z 16V C222 B6E 75 3101051010020 Chip capacitor 0402 100PF J 50V C223 B6F 76 3101056830020 Chip capacitor 0402 0.068UF Z 25V C224 T6H 77 3101054730000 Chip capacitor 0402 0.047UF K 10V C225 T6H 78 3101051830000 Chip capacitor 0402 0.018UF K 16V C226 T5H 79 3101051000020 Chip capacitor 0402 10PF J 50V C227 T5H 80 3101052220010 Chip capacitor 0402 2.2nF K 50V C228 T5H 81 3101053920000 Chip capacitor 0402 3900PF K 25V C229 T6H 82 3101052220010 Chip capacitor 0402 2.2nF K 50V C230 T6H 83 3101054730000 Chip capacitor 0402 0.047UF K 10V C231 T6H 84 3101051810000 Chip capacitor 0402 180PF J 50V C232 T6H 85 3101052720000 Chip capacitor 0402 2700PF K 50V C233 T6H 86 3101054730000 Chip capacitor 0402 0.047UF K 10V C234 T5H 87 3101051810000 Chip capacitor 0402 180PF J 50V C235 T5H 88 3101053320010 Chip capacitor 0402 3300PF K 50V C236 T5H 89 3101051030020 Chip capacitor 0402 0.01UF K 25V C237 T5H 90 3104082250030 Ta-capacitor 1206 2.2UF K 16V C238 B6H 91 3101054730000 Chip capacitor 0402 0.047UF K 10V C239 T5F 92 3101051020010 Chip capacitor 0402 1000PF K 50V C240 T5F 93 3101051040060 Chip capacitor 0402 0.1UF K 16V C241 T5F 94 3101051040060 Chip capacitor 0402 0.1UF K 16V C242 T5F 95 3101052220010 Chip capacitor 0402 2.2nF K 50V C243 T2I 96 3101051530000 Chip capacitor 0402 0.015UF K 16V C244 T2I 97 3101051020010 Chip capacitor 0402 1000PF K 50V C245 T2I 98 3101051020010 Chip capacitor 0402 1000PF K 50V C246 T2H 99 3101052220010 Chip capacitor 0402 2.2nF K 50V C247 T1H 100 3101051210000 Chip capacitor 0402 120PF J 50V C248 T2H 101 3101051030020 Chip capacitor 0402 0.01UF K 25V C249 T1G 102 3101053320010 Chip capacitor 0402 3300PF K 50V C251 T1G 103 3101051530000 Chip capacitor 0402 0.015…

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55 44 33 22 11 D D C C B B A A Reset Voltage Regulator VOX DETECT RX-CTRL ACTIVE FILTER ACTIVE FILTER LED ACTIVE FILTER BATTERY DETECT Voltage Regulator TX-CTRL EEPROM VCO-CTRL LCD BACK LIGHT 2.0 13 Friday, July 28, 2006 POWER & CTRL & DECODE HYT-RD-SCD-CD-0003 TC-1600 Model Name: Prepare: File No.: Rev: Date:Page: of Part Name: HYT Science&technology Co.Ltd. Check: Approve: 3C3R HI-LOWTONEMIC-EN EXT-PTT ST-CTRL TO 3T APA-EN CTC-DET EXT-MIC PLL-CLK MOD VOX-DET RX-MUTE SQ T/RPLL-DATA VDD PLL-ENAF-SWLD RXD TXDBAT+ VBAT C3130.056u C6151000p C310 0.015u R302 10k U601 AAT3215 123 45 IN GND EN BYPOUT D602 Orange 12 C3210.01u TP602 Vm 1 C309 1u X601 4.9152M RP602 68k 1 3 2 R307150k C314 1u U603 AT24C08 1234 5678 A0A1A2 GND SDASCLTESTVCC C6250.1u C3010.01u C320 100p C332 0.1u J602 Battery 12 C605 100p Q604DTC114EE 1 23 +- U301B NJM2902V 56 7 411 R607 47 C618 1000p D601 Orange 12 R320 10k C317 0.056u V601 LCD 12 11 10 9 8 7 6 5 4 3 2 1 13141516 R614 4.7k TP607 TI 1 C6060.01u C620 0.1u L601601s 1 2 L602601s 1 2 R617 10k S605MENU 1 2 TP606 TO 1 C619 1u + C613 10u/6.3V + C307 4.7u/10V S606UP 1 2 TP605 Vb 1 R621 4.7k TP603 Vr 1 S602DOWN 1 2 C6041000p TP604 Vt 1 R619 1k RP601 68k 13 2 R317330k C305 0.01u Q602 2SA1576 1 3 2 C6110.01u R633NC R634 NC C322 0.1u R624 2.7k R318 270k R313 220k R310 68k R324 330k R327 51k C623 0.1u C6121000p C3190.022u R323 270k R627NC C6284700p C303 0.068u C315 0.047u R613220k R603 10k R301 10k R630 4.7k C316 68p D604 NC 12 R62527k R306 0 C308 0.047u C627 33p R309 10k D603 MA742 1 23 R308 NC R315 10k L603600sg 1 2 R612100k C609 2.2u R610120 R63247k R312 82k R31112k S603CALL 1 2 R321 10k R622 10k R604 10k C6100.1u R602 10k C318 1u R605100k S604MON 1 2 C607 2.2u C617100p R628 10k C312 390p C614100p C6032.2u +- U301D NJM2902V 1213 14 411 C626 39p U604 M38C2X 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17181920212223242526272829303132 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49505152535455565758596061626364 SQ EXT-PTT TIBI TI NC0 HI-LOW CNVSS RESET NC3 NC4 VSS Xin1 Xout1 VCC VCO-CTRL Rx-ctrl Rx-mute TONE TX-Ctrl APA-EN MIC-EN NC5 LED1 COM1COM2COM3COM4 NC2 T/R LD SEG12SEG11 SEG10 SEG9 SEG8 SEG7 SEG6 SEG5 SEG4 SEG3 SEG2 SEG1 AF-SW PLL-EN PLL-CLK PLL-DATA ST-CTRL Key-out2 Key-out1Key-IN3Key-IN2Key-IN1EEP-DATAEEP-CLKTXDRXDNC1TOPOWER-DETEXT-MICAVSSVRefBAT-DETVOX-DET C306 0.1u U605 R3112 12 34 VDDGND Cd OUT R609 100 C608 1000p C622100p R601 4.7k C602 0.1u R626NC Q603 BC847AW 2 13 R322 270k R314 1M TP601 Vc 1 R616 10k R305 18k C621 0.22u R618 1k S607PTT 3 4 R316 33k Q601 2SA1576 1 3 2 R620 NC R629NC/1.5K C304 1000p R615 4.7k R319 470k C3231000p R608100 R623 39k R606 47 U602 AAT3215 123 45 INGNDEN BYP OUT R325 10k C624 0.47u +- U301C NJM2902V 10 9 8 411 R326100k R631100 C6161u + C60122u/10V C302 0.022u 55 44 33 22 11 D D C C B B A A RF FINAL AMP 1st IF FILTER ACTIVE FILTER MIXER NOISE DETECT MIC AMP RF AMP AUDIO POWER AMP MIC AGC ANTENNA SWITCH ACTIVE FILTER RF SWITCH IF AMP RF DRIVE AMP NOISE AMP RF PRE-DRIVE DC SWITCH IF SYSTEM 2.0 23 Friday, July 28, 2006 RF & AF HYT-RD-SCD-CD-0003 TC-1600 Model Name: Prepare: File No.: Rev: Date:Page: of Part Name: HYT Science&technology Co.Ltd. Check: Approve: VCO_1 VCO AND PLL MOD OUT 3C T/R 2ND LO LD CLKDATAEN VDD TO TO ST-CTRL CTC-DET EXT-PTT SQ EXT-MIC VDD VOX-DET MOD 3C PLL-CLK TONE MIC-EN PLL-DATA T/R HI-LOW APA-EN RX-MUTE PLL-EN 3T LD 3R AF-SW RXD VBAT BAT+ TXD C2222.2u C4200.1u C4030.01u C201 101 C40727p C430 10p R4025.6k C220 2.2u C431 NC R218 NC R33510k C510NC C231 0.047u L5015T1.4D C2590.1u R23010k C252 0.015u C4231000p C233 2700p R506 1.2k R23510k R502 100k C511470p C225 0.047u C5221000p C515 24p Q204 2SC5343EG 2 13 +- U201A NJM2100V 32 1 84 C206 0.022u + C213 2.2u/10V R3322.2k C411 NC R331100k C512 15p C427 NC L4055.6nH C205 0.1u R243 2.2k C3310.47u C504 NC R262NC C244 0.015u +- U201B NJM2100V 56 7 84 C203 0.1u R206 1M Q209 DTC144EE 1 23 R24418k C223100p R2534.7 C217 100P R247100 Q401 2SC4226 2 13 C519 22p R514 100 R212 18k C2472200p R507 560 C3251000p C5070.1u R263NC R2554.7 R25410 L40227nH R23862k +- U301A NJM2902V 32 1 411 C208100p R261 2.2k C248120p R23962k + C221 10u/10V R241 10k C239 0.1u C527 470p L410 82nH C406NC C4041000p L4075T1.0D Q2110 23 1 R20247k C518 0.1u L506003C R2142.2k L4030 R404 10 C506100p C425 470p W401antenna R216470k L401601s 1 2 R511 10 R509 1M C524 0.1u C435470p Q212 2SA1832 2 3 1 D401 MA2S077 C3294700p R2344.7k R204 0 C41239p B2028 Ω SPK Q208FMMT717 1 2 3 R508 560 R210 2.2k C503 3P C4090.1u R252 2.2k C2650.1u L408600sg 1 2 C4010.33u R330680 D202 MA2S077 R501 0 R23633k R512 20k C4341000p C207 0.022u C230 2200p C526470p R259 2.2k R209 0 Q4042SK1824 23 1 R5102.2k C2190.01u D502MA2S077 TP201 MICAMP 1 D402MA77 C274 470p C235 180p C2461000p C4131.5p Q403 NE5510279A 23 1 C2282200p L4095T1.0D C2410.1u C212 0.1u C266 0.1u C2340.047u C432 3p + C26122u/10V S601 SW AND VOL 45 3 1 2 R223 39k R4054.7k R250 68k C42810p Q210 0 23 1 L504 2.2uH C2451000p R33424k U501MC3361 1 2 3 4 5 6 7 89 10 11 12 13 14 15 16 OSCI OSCO MIXO VCC IFI DEC IFO QUADAFOUT FILI FILO RSSI N-DET N-REC GND MIXI R201 4.7k C4371p C2432200p C262470p U203TDA2822 1234 5678 OUTPUT1 +VS OUTPUT2 GND INPUT+2INPUT-2INPUT+1INPUT-1 C253 0.1u R25147k C204 1000p Q203 2SA1576 1 3 2 R20718k R22430k R213 10k Q206BC847AW 2 13 L201 1uH C273 0.01u C232 180p C505 0 Z50221.7M 1 3 2 C2640.1u L412 3T1.6D C2401000p C4160.1u R22030k R23718k C517 NC C3261000p C513 0.01u C414 NC R503 470 L50518nH Q207BC847AW 2 13 mic B201 12 C236 3300p C2091000p L411 3T1.6D C5210.1u C3271000p C3280.01u C4261p R24810 C433 1000p R4034.7k Q502 2SC4226 2 13 C271 0.1u R258 1k RP20147k 13 2 C258100p C2490.01u R412 47 C2630.01u R505470k L503 220nH R245470k R413 47 R208 15k R219 39k C5090.5p TP202 MOD 1 C5202.2u R2211.8M C22710p U202 SL5020 1 2 3 4 5 6 78 9 10 11 12 13 14 1 2 3 4 5 6 78 9 10 11 12 13 14 C250NC + C260 10u/6.3V C4051u RP40115k 13 2 R513 10k C436470p C502 NC Q202 2SC5343 2 13 R40827k R217 180k R205 15k L404 221sg 12 R228 10k C218 0.022u C508 2p C3300.022u + C254 10u/10V R24062k C226 0.018…

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SHENZHEN HUATONGWEI INTERNATIONAL INSPECTION CO., LTD REPORT NO: WE06090002 FCC ID: R74-TC1600 DATE: 10/08/2006 Page 1 Rev. 00 ELECTROMAGNETIC EMISSIONS COMPLIANCE REPORT INTENTIONAL RADIATOR CERTIFICATION TO FCC PART 90 REQUIREMENTS OF TWO-WAY RADIO MODEL No.: TC-1600 BRAND NAME: HYT FCC ID: R74-TC1600 REPORT NO: WE06090002 ISSUE DATE: Oct 08, 2006 Prepared for SHENZHEN HYT SCIENCE & TECHNOLOGY CO., LTD. HYT TOWER, SHENZHEN HI-TECH INDUSTRIAL PARK NORTH, BEIHUAN RD., NANSHAN DISTRICT, SHENZHEN, P.R.C. Prepared by SHENZHEN HUATONGWEI INTERNATIONAL INSPECTION CO., LTD d.b.a. SHENZHEN HUATONGWEI INTERNATIONAL INSPECTION CO., LTD HUATONGWEI BUILDING, KEJI RD. 12 S., HIGH-TECH PARK, NANSHAN DISTRICT, SHENZHEN, GUANGDONG, P.R.CHINA TEL: 86-755-26748099 FAX: 86-755-26748005 SHENZHEN HUATONGWEI INTERNATIONAL INSPECTION CO., LTD REPORT NO: WE06090002 FCC ID: R74-TC1600 DATE: 10/08/2006 Page 2 Rev. 00 VERIFICATION OF COMPLIANCE Applicant: SHENZHEN HYT SCIENCE & TECHNOLOGY CO., LTD. HYT Tower, Shenzhen Hi-Tech Industrial Park North, Beihuan Rd., Nanshan District, Shenzhen, P.R.C. Product Description: FM Handheld Transceiver Brand Name: HYT Model Number: TC-1600 Serial Number: N/A File Number: WE06090002 Date of Test: Sep 20,2006 ~Oct 03,2006 We hereby certify that: The above equipment was tested by SHENZHEN HUATONGWEI INTERNATIONAL INSPECTION CO., LTD. The test data, data evaluation, test procedures, and equipment configurations shown in this report were made in accordance with the procedures given in ANSI C63.4 (2003) and the energy emitted by the sample EUT tested as described in this report is in compliance with radiated emission limits of FCC Rules Part 90. The test results of this report relate only to the tested sample identified in this report. Approved By Reviewed By Jimmy Li /Executive Manager Tracy Qi / Testing Engineer SHENZHEN HUA TONG WEI SHENZHEN HUA TONG WEI INTERNATIONAL INSPECTION CO., LTD INTERNATIONAL INSPECTION CO., LTD SHENZHEN HUATONGWEI INTERNATIONAL INSPECTION CO., LTD REPORT NO: WE06090002 FCC ID: R74-TC1600 DATE: 10/08/2006 Page 3 Rev. 00 Table of Contents 1. GENERAL INFORMATION.................................................................................................................. 5 1.1 PROCUCT DESCRIPTION ........................................................................................................... 5 1.2 RELATED SUBMITTSL(S) / GRANT(S) ........................................................................................ 5 1.3 TEST METHODOLOGY ................................................................................................................ 5 1.4 TEST FACILITY.....................................................................................................…

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