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General| Frequency Range | UHF: 400-470 MHz |
|---|---|
| Channel Capacity | 16 |
| Power Output | 5W |
| Channel Spacing | 12.5 / 25 kHz |
| Operating Voltage | 7.4 V |
| IP Rating | IP54 |
| Type | Portable |
| MIL-STD | MIL-STD-810 C, D, E, F, G |
| Operating Temperature | -30°C to +60°C |
Provides context for the manual's intended audience and scope.
Explains the procedure and required information for ordering replacement parts.
Lists essential safety precautions for operating and servicing the equipment.
Briefly describes the transceiver's design for easy servicing.
Describes different operational modes for transceiver programming and cloning.
Details the steps to access various operational modes like User, PC, and Clone.
Explains the process of programming the transceiver using a PC and interface cable.
Introduces PC programming setup with hardware and software requirements.
Outlines the steps for connecting the transceiver to a PC for programming.
Describes the function and connection of the PC programming interface cable.
Explains the USB adapter used for PC programming.
Details the FPU software used for transceiver programming.
Explains data transfer methods and pin functions during PC programming.
Introduces the feature for copying transceiver data wirelessly.
Describes the purpose of Wireless Clone Mode for data copying.
Explains how programming data can be copied via RF communication.
Provides step-by-step instructions for performing wireless cloning.
Lists frequency tables used for wireless cloning operations.
Details the steps to detach the case assembly from the transceiver chassis.
Explains how to remove the TX-RX unit from the chassis, including desoldering.
Describes the procedure to remove the battery release lever.
Provides instructions for reattaching the battery release lever to the case assembly.
Details the steps for assembling the battery release lever mechanism.
Explains how to attach the positive terminal to the chassis before reassembly.
Describes how to securely mount the chassis back into the case assembly.
Provides instructions for screwing the antenna receptacle to the chassis.
Highlights differences in knob nuts and suggests using a jig for removal.
Specifies the correct sequence for screwing the TX-RX unit back into the chassis.
Explains the receiver's double conversion and frequency generation.
Details the receiver's signal path and component functions.
Describes the RF signal path from the antenna through the front-end amplifier.
Explains the mixing process that produces the first IF frequency.
Details the amplification and filtering of the IF signal.
Explains how wide and narrow bandwidths are switched based on data.
Describes the signal path through the audio amplifier to the speaker.
Explains how the squelch circuit detects and filters noise.
Covers QT/DQT, MSK, and DTMF signaling reception.
Explains the PLL circuit's role in generating local oscillator and RF signals.
Details the PLL circuit's frequency step and phase comparison mechanism.
Describes how the VCO operates and controls frequency.
Explains the function of the unlock detector circuit.
Covers the microphone amplifier and drive/final amplifier stages.
Details the signal path from the microphone to the VCO modulation input.
Explains the RF amplification stages from pre-drive to final output.
Describes the Automatic Power Control circuit's function.
Covers QT/DQT, DTMF, and MSK encoding.
Details the various 5V power supply outputs for different modes.
Explains the MCU's role in controlling transceiver functions.
Describes the circuit that shifts the MCU clock frequency.
Explains the MCU and EEPROM memory configuration.
Details how the MCU monitors battery voltage and indicates low levels.
Explains the control system involving keys and channel selector input.
Lists pin assignments and functions for the MCU.
Details pin functions for the TX-RX unit connector CN301.
Lists and describes components within the TX-RX unit.
Lists capacitor types, values, and coding systems.
Lists resistor types, values, and coding systems.
Lists parts for the main unit, including cabinets and accessories.
Lists components specific to the TX-RX unit.
Continues listing chip capacitors and their specifications.
Continues listing chip capacitors and their specifications.
Lists various chip capacitors, connectors, and small fixed inductors.
Lists resistors (R series) and their values.
Lists diodes, transistors, FETs, and thermistors.
Lists ICs, transistors, FETs, and thermistors with their part numbers.
Lists necessary test equipment and their specifications for alignment.
Notes the SMA terminal and required adapters.
Describes a jig used for chassis repair and voltage checks.
Explains the use of a battery jig for proper power connection during adjustments.
Lists frequencies and signaling parameters for adjustment.
Provides frequency tables for different transceiver models.
Lists frequency tables specific to the TK-3306 M3 model.
Lists FPU types for various transceiver models.
Shows component side view with adjustment points labeled.
Outlines preparations and precautions before tuning the transceiver.
Details adjustments for common settings like battery voltage and VCO lock.
Specifies settings for battery terminal voltage and modulation.
Details how to measure and adjust RX VCO lock voltage.
Details how to measure and adjust TX VCO lock voltage.
Covers transmitter adjustments including frequency, power, and deviation.
Explains how to adjust the transceiver's frequency.
Details the procedure for adjusting high transmit power.
Details the procedure for adjusting low transmit power.
Explains how to adjust maximum deviation for Wide and Narrow modes.
Describes how to adjust DOT balance for Wide and Narrow modes.
Details how to adjust QT fine deviation for Wide and Narrow modes.
Details how to adjust DQT fine deviation for Wide and Narrow modes.
Details how to adjust DTMF fine deviation for Wide and Narrow modes.
Details how to adjust MSK fine deviation for Wide and Narrow modes.
Covers receiver adjustments, specifically BPF wave adjustment.
Explains how to adjust the Band Pass Filter waveform.
Details how to measure and adjust receiver sensitivity.
Explains how to adjust squelch open levels for Wide and Narrow modes.
Explains how to adjust squelch tight levels for Wide and Narrow modes.
Details how to set the battery warning level.
Shows the component side view of the TX-RX unit PCB.
Identifies component locations on the TX-RX unit's component side.
Shows the component side view of the TX-RX unit PCB with component references.
Shows the foil side view of the TX-RX unit PCB with component references.
Shows the foil side view of the TX-RX unit PCB with component references.
Presents the main schematic diagram for the TX-RX unit.
Continues the schematic diagram for the TX-RX unit.
Continues the schematic diagram for the TX-RX unit.
Continues the schematic diagram for the TX-RX unit.
Shows the overall block diagram of the TX-RX unit functions.
Continues the block diagram illustrating signal flow and component interaction.
Illustrates signal levels within the receiver section.
Illustrates signal levels within the transmitter section.
Lists general specifications like frequency range, channels, and battery life.
Details receiver performance specifications including sensitivity and selectivity.
Details transmitter performance specifications like RF power and modulation.
