ALH29473130UHF-FM Hand Held Transceiver

INSTRUCTION MANUAL TK-270G/ TK-370G TK-278G/ TK-378G MANUAL DE INSTRUCCIONES INSTRUCTION MANUAL KENWOOD CORPORATION © B62-1113-00 (K,M,C) 09 08 07 06 05 04 03 02 01 00 VHF FM TRANSCEIVER/ UHF FM TRANSCEIVER TRANSCEPTOR DE FM VHF/ TRANSCEPTOR DE FM UHF VHF FM TRANSCEIVER/ UHF FM TRANSCEIVER TK-270G/ TK-370G TK-278G/ TK-378G TK-270G/ TK-370G TK-278G/ TK-378G TK-270G/ TK-370G TK-278G/ TK-378G VHF FM TRANSCEIVER/ UHF FM TRANSCEIVER INSTRUCTION MANUAL ENGLISH WARNING: EXPLOSIVE ATMOSPHERES (GASES, DUST, FUMES, etc.) Turn off your transceiver while taking on fuel, or while parked in gasoline service stations. uGOVERNMENT LAW PROHIBITS THE OPERATION OF UNLICENSED RADIO TRANSMITTERS WITHIN THE TERRITORIES UNDER GOVERNMENT CONTROL. uILLEGAL OPERATION IS PUNISHABLE BY FINE OR IMPRISONMENT OR BOTH. uREFER SERVICE TO QUALIFIED TECHNICIANS ONLY. SAFETY: It is important that the operator is aware of and understands hazards common to the operation of any transceiver. THANK YOU We are grateful you chose KENWOOD for your land mobile radio applications. We believe this easy-to-use transceiver will provide dependable communications to keep personnel operating at peak efficiency. KENWOOD transceivers incorporate the latest in advanced technology. As a result, we feel strongly that you will be pleased with the quality and features of this product. MODELS COVERED BY THIS MANUAL • TK-270G: VHF FM Transceiver • TK-278G: VHF FM Transceiver • TK-370G: UHF FM Transceiver • TK-378G: UHF FM Transceiver NOTICES TO THE USER i One or more of the following statements may be applicable: FCC WARNING This equipment generates or uses radio frequency energy. Changes or modifications to this equipment may cause harmful interference unless the modifications are expressly approved in the instruction manual. The user could lose the authority to operate this equipment if an unauthorized change or modification is made. INFORMATION TO THE DIGITAL DEVICE USER REQUIRED BY THE FCC 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 generate 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 the 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 to an outlet on a circuit different from that to which the receiver is connected. •Consult the dealer for technical assistance. ATTENTION (U.S.A. Only): The RBRC Recycle seal found on KENWOOD nickel-cadmium (Ni-Cd) battery packs indicates KENWOOD’s voluntary participation in an industry program to collect and recycle Ni-Cd batteries after their operating life has expired. The RBRC program is an alternative to disposing Ni-Cd batteries with your regular refuse or in municipal waste streams, which is illegal in some areas. For information on Ni-Cd battery recycling in your area, call (toll free) 1-800-8-BATTERY (1-800-822-8837). KENWOOD’s involvement in this program is part of our commitment to preserve our environment and conserve our natural resources. ii PRECAUTIONS Observe the following precautions to prevent fire, personal injury, and transceiver damage. • Do not modify this transceiver for any reason. • Do not expose the transceiver to long periods of direct sunlight, nor place it close to heating appliances. • Do not place the transceiver in excessively dusty, humid, and/or wet areas, nor on unstable surfaces. • If an abnormal odor or smoke is detected coming from the transceiver, switch OFF the power immediately and remove the optional battery pack from the transceiver. Contact your KENWOOD dealer. iii CONTENTS UNPACKING AND CHECKING EQUIPMENT................... 1 Supplied Accessories...................................... 1 PREPARATION.................................................. 3 Charging the Optional NiCd Battery Pack.................. 3 Installing/ Removing the Optional NiCd Battery Pack..... 4 Installing the Antenna..................................... 5 Installing the Belt Clip..................................... 5 Installing the Hand Strap.................................. 5 Installing the Cap over the Speaker/ Microphone Jacks ... 6 Installing the Optional Speaker/ Microphone........... 6 GETTING ACQUAINTED........................................ 7 Display...................................................... 9 PROGRAMMABLE AUXILIARY FUNCTIONS................ 10 OPERATING BASICS........................................... 11 Switching Power ON/OFF................................ 11 Adjusting the Volume..................................... 11 Selecting a Group or Channel........................... 11 Adjusting the Squelch Level............................. 12 Placing a Call.............................................. 13 Receiving a Call........................................... 13 CHANNEL SCAN............................................... 14 Priority Scan............................................... 15 Channel Lockout.......................................... 15 Revert Channel............................................ 15 DTMF CALLS................................................... 16 Manual Dialling............................................ 16 iv Storing DTMF Numbers.................................... 17 Confirming Stored DTMF Numbers..................... 17 Dialling Stored DTMF Numbers......................... 18 Clearing St…

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BLOCK DIAGRAM(Left) Model Name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130

BLOCK DIAGRAM(RIGHT) Model Name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130

Bottom View Model Name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130

Front view Model Name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130

Left view Model Name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130

Rear View Model name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130

Right Side View Model Name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130

Top View Model Name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130

Name Plate Model Name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130

PC Board Font View Model Name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130

PC Board Rear View Model Name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130

(TK-370GK3;FCC ID:ALH29473130) (TK-360GK3;FCC ID:ALH29473130) TK-360G/TK-370G CIRCUIT DESCRIPTION The KENWOOD model TK-360G, TK-370G are UHF/FM hand-held transceiver designed to operate in the frequency range of 490 to 512MHz. The unit consists of a receiver, a transmitter, a phase-locked loop (PLL) frequency synthesizer, a digital control circuit, power supply circuit and a signaling circuit. 1. RECEIVER CIRCUIT The receiver is double conversion superheterodyne, designed to operate in the frequency range of 490 to 512MHz. 1.1 FRONT-END RF AMPLIFIER An incoming signal from the antenna is applied to on RF amplifier (Q301) after passing through a transmit/receive switch circuit (D3 and D7 are off) and a band pass filter (L308,L309). After the signal is amplified (Q301), the signal is filtered by a band pass filter (L302,L304) to eliminate unwanted signals before it is passed to the first mixer. 1.2 FIRST MIXER The signal from the RF amplifier is heterodyned with the first local oscillator signal from the PLL frequency synthesizer circuit at the first mixer (Q19) to become a 49.95MHz first intermediate frequency (1st IF) signal. The first IF signal is fed through two monolithic crystal filters (MCFs:XF1) to further remove spurious signals. 1.3 IF AMPLIFIER The first IF signal is amplified by Q22, and then enters IC4 (FM processing IC). The signal is heterodyned again with a second local oscillator signal within IC4 to become a 450kHz second IF signal. The second IF signal is fed through a 450kHz ceramic filter to further eliminate unwanted signals before it is amplified and FM detected in IC4. 1.4 AUDIO AMPLIFIER The recovered audio signal obtained from IC4 is amplified by IC16 (1/2), high-pass filtered by IC14, and de-empfasized by IC14. The audio signal is then amplified by IC15. The processed audio signal passes through an audio volume control and is amplified to a sufficient level to drive a loud speaker by an audio power amplifier (IC11). 1.5 SQUELCH AND MUTE CIRCUIT The output signal from the squelch circuit, which consists of IC4, is applied to the microprocessor. The microprocessor controls the mute control line (MUTE) according to the input signal and the microprocessor task condition. 2. TRANSMITTER 2.1 MICROPHONE CIRCUIT The signal from the microphone is high-pass filtered by IC14, passed through microphone mute circuit (Q35), limited and pre-emphasized by IC14,D23. (TK-370GK3;FCC ID:ALH29473130) (TK-360GK3;FCC ID:ALH29473130) 2.2 MODULATOR CIRCUIT The output of the Low-pass filter network (IC14) is passed to the D/A converter (IC17) for maximum deviation adjustment and is applied to a varactor diode (D6) in the voltage controlled oscillator (VCO) located in the frequency synthesizer section. 2.3 DRIVER AND FINAL POWER AMPLIFIER CIRCUITS The transmit signal obtained from the VCO buffer amplifier Q3 is amplified to approximately 17dBm by Q4,Q5 and Q6. This amplified signal is passed to the power module (IC1). The power module consists of a 2-stages amplifier and is capable of producing up to 4W of RF power. 2.4 TRANSMIT/RECEIVE SWITCHING CIRCUIT The power module output signal is passed through a 3-stages low-pass filter network and a transmit/receive switching circuit before it is passed to the antenna terminal. The transmit/receive switching circuit is comprised of D3 and D7. D3 and D7 are turned on (conductive) in transmit mode and turned off (isolated) in receive mode. 2.5 AUTOMATIC POWER CONTROL CIRCUIT AND TRANSMITTER OUTPUT LEVEL SWITCH The automatic power control (APC) circuit stabilizes the transmitter output power at a pre-determined level by sensing the collector current of the final amplifier Field Effect Transistor (FET) in the power module. The voltage comparator IC3 (2/2) compares the voltage obtained by the above drain current with a reference voltage, set using the microprocessor and Q15. An APC voltage proportional to the difference between the sensed voltage and the reference voltage appears at the output of IC3 (2/2). This output voltage controls pin 2 of the power module, which keeps the transmitter output power constant. The transmitter output power can be varied to 1W or 2W output power by the microprocessor, which in turn changes the reference voltage and hence the output power. 3. PLL FREQUENCY SYNTHESIZER 3.1 PLL The frequency step of the PLL circuit is 5 or 6.25kHz. A 16.8MHz reference oscillator signal is divided at IC2 by a fixed counter to produce the 5 or 6.25kHz reference frequency. The VCO output signal is buffer amplified by Q1, then divided in IC2, by a dual-modules programmable counter in this case. The divided signal is compared in phase with the 5 or 6.25kHz reference signal in the phase comparator also in IC2. The output signal from the phase comparator is low-pass filtered and passed to the VCO to control the oscillator frequency. 3.2 VOLTAGE CONTROLLED OSCILLATOR (VCO) The operating frequency is generated by Q2 in transmit mode and Q10 in receive mode. The oscillator frequency is controlled by applying the VCO control voltage, obtained from the phase comparator, to the varactor diodes (D2 and D4 in transmit mode and D9 and D11 in receive mode). The T/R pin is set high in receive mode causing Q7 and Q8 to turn off Q2, and turn on Q10, and is set low for transmit mode. The outputs from Q2 and Q10 are amplified by Q3 and outputted to the buffer amplifiers. (TK-370GK3;FCC ID:ALH29473130) (TK-360GK3;FCC ID:ALH29473130) 3.3 UNLOCK DETECTOR CIRCUIT If a pulse signal appears at the LD pin of IC2, an unlock condition occurs, the DC voltage, obtained from D1, R1 and C6, causes the voltage applied to the UL pin of the microprocessor to go low. When the microprocessor detects this condition, the transmitter is disabled by ignoring the push-to-talk switch input signal. 4. DIGITAL CONTROL CIRCUIT 4.1 KEY SWITCHES AND ROTARY ENCODER INPUT CIRCUIT The key switches and rotary encoder (channel selector) information are entered directly into the microprocessor…

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(TK-370GK3;FCC ID:ALH29473130) (TK-360GK3;FCC ID:ALH29473130) TK-360G/TK-370G/TK-378G TUNING PROCEDURES 1. Preparations for tuning the transceiver Before attempting to tune the transceiver, connect the unit to a suitable power supply (without case). Wherever the transmitter is tuned, the unit must be connected to a suitable dummy load (i.e. power meter). The speaker output connector must be terminated with an 8 ohms dummy load and connected to an AC voltmeter and an audio distortion meter or a SINAD measurement meter at all times during tuning. 2. Transceiver tuning 2-1. Turn on the transceiver 2-2. Select the Ch.2 2-3. Press PTT and adjust the transmitter frequency 460.050MHz(-1), 480.050MHz(-2), 501.050MHz(-3),418.050MHz(-4) 50Hz by TC-1. 2-4. Apply a 1000Hz tone with a 150mV(RMS) level to Mic input. 2-5. Press PTT and adjust the maximum deviation to 4.2kHz0.1kHz by the VR2. 3. To place transceiver tuning mode 3-1. Press LAMP, TA buttons together and turn on. Hold LAMP and TA until "TEST" appears on LCD. 3-2. Press TA then appears a number that means level of tuning requirement on LCD. 3-3. Press LAMP, LO buttons together and "TUNE" appear on LCD. Set channel according to tuning requirement, as follows. 3-3-1.High and Low RF output power, Battery. 3-3-2.Fine QT. 3-3-3.Fine DQT. 4.Use LAMP, LO buttons together to toggle through tuning modes, and channel selector knob to adjust tuning requirement (1 to 256 appears on LCD). The tuning modes are as follows. 4-1.High RF output power, Press PTT and adjust for 4W. 4-2.Low RF output power, Press PTT again and adjust for 1W. 4-3.Fine QT, Press SCN and adjust for 0.75KHz deviation. 4-4.Fine DQT, Press DIAL and adjust for 0.75KHz deviation. 4-5.Battery,Press TA and set power supply voltage to 5.7V then tune channel selector knob to indicate TX LED(RED) blinking. When "END" reached tune off power and data entrees memory. When "END" reached, but tuning not finished, pressing "LAMP" toggles to the required tuning mode. Note: Previous tuning adjustment remain in memory, if power tuned off before "END" is reached. Tune L12 and L18 in the TX-RX unit to obtain a 3dB or less waveform level through 450 to 470MHz(-1),470 to 490MHz(-2),490 to 512MHz(-3),406 to 430MHz(-4).

Parts list(1of 4) Model name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130 Parts List(2 of 4) Model Name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130 Parts list(3of 4) Model name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130 Parts list(4of4) Model Name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130

CIRCUIT SCHEMATIC(Bottom Left) Model Name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130

CIRCUIT SCHEMATIC(Bottom Right) Model Name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130

CIRCUIT SCHEMATIC(TOP RIGHT ) Model Name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130

CIRCUIT SCHEMATIC(TOP LEFT) Model Name:TK-370GK3/TK-360GK3 FCC ID:ALH29473130

FCC ID: ALH29473130 MFA p0010011, d0020022 Date: February 4, 2000 Federal Communications Commission Via: Electronic Filing Attention: Authorization & Evaluation Division Applicant: Kenwood Communications Corporation Equipment: TK-370G-3 and TK-360G-3 FCC ID: ALH29473130 FCC Rules: 90, 22I Gentlemen: On behalf of the Applicant, enclosed please find Application Form 731, Engineering Test Report and all pertinent documentation, the whole for approval of the referenced equipment as shown. Filing fees are attached. We trust the same is in order. Should you need any further information, kindly contact the writer who is authorized to act as agent. Sincerely yours, William H. Graff, Director of Engineering enclosure(s) cc: Applicant WHG/cvr FCC ID: ALH29473130 MFA p0010011, d0020022 LIST OF EXHIBITS (FCC CERTIFICATION (TRANSMITTERS) - REVISED 9/28/98) APPLICANT: Kenwood Communications Corporation FCC ID: ALH29473130 BY APPLICANT: 1. LETTER OF AUTHORIZATION 2. IDENTIFICATION DRAWINGS, 2.1033(c)(11) LABEL LOCATION OF LABEL COMPLIANCE STATEMENT LOCATION OF COMPLIANCE STATEMENT 3. PHOTOGRAPHS, 2.1033(c)(12) 4. DOCUMENTATION: 2.1033(c) (3) USER MANUAL (9) TUNE UP INFO (10) SCHEMATIC DIAGRAM (10) CIRCUIT DESCRIPTION BLOCK DIAGRAM PARTS LIST ACTIVE DEVICES 5. PART 90.203(e) & (g) ATTESTATION BY M.F.A. INC. A. TESTIMONIAL & STATEMENT OF CERTIFICATION B. STATEMENT OF QUALIFICATIONS FCC ID: ALH29473130 MFA p0010011, d0020022 Sub-part 2.1033(c): EQUIPMENT IDENTIFICATION FCC ID: ALH29473130 NAMEPLATE DRAWING ATTACHED, EXHIBIT 1. LOCATION AS PER LABEL DRAWING(S) DATE OF REPORT February 4, 2000 SUPERVISED BY: William H. Graff, Director of Engineering FCC ID: ALH29473130 MFA p0010011, d0020022 THE APPLICANT HAS BEEN CAUTIONED AS TO THE FOLLOWING: 15.21 INFORMATION TO USER. The users manual or instruction manual for an intentional radiator shall caution the user that changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment. 15.27(a) SPECIAL ACCESSORIES. Equipment marketed to a consumer must be capable of complying with the necessary regulations in the configuration in which the equipment is marketed. Where special accessories, such as shielded cables and/or special connectors are required to enable an unintentional or intentional radiator to comply with the emission limits in this part, the equipment must be marketed with, i.e. shipped and sold with, those special accessories. However, in lieu of shipping or packaging the special accessories with the unintentional or intentional radiator, the responsible party may employ other methods of ensuring that the special accessories are provided to the consumer, without additional charge. Information detailing any alternative method used to supply the special accessories for a grant of equipment authorization or retained in the verification records, as appropriate. The party responsible for the equipment, as detailed in § 2.909 of this chapter, shall ensure that these special accessories are provided with the equipment. The instruction manual for such devices shall include appropriate instructions on the first page of text concerned with the installation of the device that these special accessories must be used with the device. It is the responsibility of the user to use the needed special accessories supplied with the equipment. FCC ID: ALH29473130 MFA p0010011, d0020022 TABLE OF CONTENTS RULE DESCRIPTION PAGE . Test Report 1 2.1033(c) General Information Required 2 2.1033(c)(14) Rule Summary 5 . Standard Test Conditions and Engineering Practices 6 2.1046(a) Carrier Output Power (Conducted) 7 2.1046(a) R. F. Power Output (Radiated) 9 2.1051 Unwanted Emissions (Transmitter Conducted) 11 2.1053(a) Field Strength of Spurious Radiation 15 2.1049(c)(1) Emission Masks (Occupied Bandwidth) 18 90.214 Transient Frequency Behavior 25 2.1047(a) Audio Low Pass Filter (Voice Input) 35 2.1047(a) Audio Frequency Response 38 2.1047(b) Modulation Limiting 40 2.1055(a)(1) Frequency Stability (Temperature Variation) 43 2.1055(b)(1) Frequency Stability (Voltage Variation) 46 2.202(g) Necessary Bandwidth and Emission Bandwidth 47 FCC ID: ALH29473130 MFA p0010011, d0020022 PAGE NO. 1 of 47. Required information per ISO/IEC Guide 25-1990, paragraph 13.2: a) TEST REPORT b) Laboratory: (FCC: 31040/SIT) (Canada: IC 2044) M. Flom Associates, Inc. 3356 N. San Marcos Place, Suite 107 Chandler, AZ 85224 c) Report Number: d0020022 d) Client: Kenwood Communications Corporation P.O. Box 22745 Long Beach, CA 90801-5745 e) Identification: TK-370G-3 and TK-360G-3 FCC ID: ALH29473130 Description: UHF FM Hand Held Transceiver f) EUT Condition: Not required unless specified in individual tests. g) Report Date: February 4, 2000 EUT Received: January 21, 2000 h, j, k): As indicated in individual tests. i) Sampling method: No sampling procedure used. l) Uncertainty: In accordance with MFA internal quality manual. m) Supervised by: William H. Graff, Director of Engineering n) Results: The results presented in this report relate only to the item tested. o) Reproduction: This report must not be reproduced, except in full, without written permission from this laboratory. FCC ID: ALH29473130 MFA p0010011, d0020022 PAGE NO. 2 of 47. LIST OF GENERAL INFORMATION REQUIRED FOR CERTIFICATION IN ACCORDANCE WITH FCC RULES AND REGULATIONS, VOLUME II, PART 2 AND TO 90, 22I Sub-part 2.1033 (c)(1): NAME AND ADDRESS OF APPLICANT: Kenwood Communications Corporation 2201 E. Dominguez St P.O. Box 22745 Long Beach, CA 90801-5745 MANUFACTURER: Kenwood Electronics Technologies PTE Ltd. 1 Ang Mo Kio Street 63 Singapore 569110 (c)(2): FCC ID : ALH29473130 MODEL NOs: TK-370G-3 and TK-360G-3 (c)(3): INSTRUCTION MANUAL(S): PLEASE SEE ATTACHED EXHIBITS (c)(4): TYPE OF EMISSION: 16K0F3E, 11K0F3E (c)(5): FREQUENCY RANGE, MHz : 490 to 512 (c)(6): POWER RATING, Watts: 0.5 to 4 Switchable x Variable N/A FCC GRANT NOTE: BD - The output power is continuously …

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