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Kenwood TR-7850 User Manual

Kenwood TR-7850
17 pages
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Kenwood TR-7850 Specifications

General IconGeneral
Frequency Range144-148 MHz
ModeFM
Weight1.2 kg
Power Requirement13.8V DC
Channel Step5/10/15/20/25 kHz
Antenna Impedance50 ohms
Power Supply13.8V DC
TypeMobile
Receiver Sensitivity0.25 μV (12 dB SINAD)
Sensitivity0.25 μV (12 dB SINAD)
Memory Channels20 Channels

Summary

Product Features

Pre-Operation Safety Guidelines

Essential safety and operational guidelines before operating the transceiver.

Technical Specifications

Installation Guide

Connection and Power Supply

Connecting antenna and power for fixed and mobile setups.

Vehicle Installation Guide

Mounting the transceiver in a vehicle and antenna placement.

Fixed Station Setup

Setting up the transceiver for stationary use with antenna and power.

Internal Battery Backup

Installing and utilizing internal batteries for memory retention.

Controls and Terminals Overview

Front Panel Interface

Overview of all front panel buttons, displays, and indicators.

Rear Panel Connectivity Ports

Description of rear panel terminals for external connections.

Operating the Transceiver

General Operation and Frequency Entry

Basic operational concepts, frequency setting, and transmitter precautions.

Memory and Channel Management

Storing, selecting, and managing memory channels and split frequencies.

Scan and Priority Channel Functions

Utilizing scan modes and priority channel monitoring for efficient operation.

Advanced Operating Modes

TX Offset, Auto Patch, Squelch, HI/LOW power, and adjustments.

Operational Notes and Metering

Details on meter functions, tone switch, and general notes.

Optional Equipment

External Speaker and DC Power Supply

Details on optional external speaker and DC power supply.

Battery Charger BC-1

Information on the BC-1 charger for extended backup power.

Technical Diagrams

Schematic Diagram

Detailed circuit diagram of the TR-7850 transceiver.

Block Diagram

Functional block diagram illustrating the transceiver's internal architecture.

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