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Ten-Tec 238A - User Manual

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21 pages
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The model 238A and the model 238B tuners are
Identical except for color.
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Summary

Specifications

Installation

1-1 Introduction

Overview of the installation process for the antenna tuner.

1-2 Unpacking and Inspection

Instructions for safely unpacking and checking the antenna tuner for damage.

1-3 Transmitter Connection

Guide on how to connect the transmitter to the antenna tuner's input.

1-4 Ground Connection

Explains the importance and method of establishing a proper ground connection.

1-5 Antenna Connections

Details how to connect various types of antennas to the tuner's terminals.

1-6 Meter Lighting

Information on powering the meter lamp for visibility.

Operating Instructions

2-1 Introduction

Brief overview of how to get the antenna tuner operational.

2-2 Front Panel Control Functions

Details the functions of the Capacitor, Inductor, Impedance Switch, Meter Select Knob, and SWR Set controls.

2-3 Antenna Matching

Step-by-step procedure for matching antenna systems to the transmitter.

2-4 Antenna Selection

Instructions for selecting and connecting different antennas.

2-5 Power-SWR Meter

How to use the integrated meter for power and SWR readings.

2-6 Operating Hints

Practical tips for optimizing tuner performance and operation.

Cautions

Critical safety warnings and precautions for operating the antenna tuner.

2-7.1 The Antenna

Explains how conductors act as radiators and the concept of radiation resistance.

2-7.2 The Transmission Line

Discusses transmission line characteristics, impedance, and how they affect matching.

2-7.3 Effect of the Transmission Line on Antenna Impedance

How transmission lines transform impedance and affect standing waves.

2-7.4 Standing Wave Ratio

Defines SWR and its relation to system mismatch and load resistance.

2-7.5 Overall Summary

Summarizes key concepts related to antenna systems and matching.

2-8 Alignment and Calibration Procedures

Details the procedures for aligning the SWR bridge and calibrating the internal wattmeter.

Illustrations and Circuit Schematics

3-1 Introduction

Introduces the chapter detailing circuit diagrams and layout information.

3-2 Circuit Description

Provides a technical description of the antenna tuner's circuit design.

3-3 Tuner Configurations

Illustrates the different network configurations used in the tuner.

3-4 Master Parts Lists

Lists all components for the tuner's circuit boards and chassis.

Limited Warranty and Service Policy

Ten-Tec 238A Specifications

General IconGeneral
BrandTen-Tec
Model238A
CategoryTuner
LanguageEnglish

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