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Daiwa CNW-518 User Manual

Daiwa CNW-518
7 pages
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Daiwa CNW-518 Specifications

General IconGeneral
BrandDaiwa
ModelCNW-518
CategoryTuner
LanguageEnglish

Summary

Antenna Tuner Specifications

SWR/Power Meter Circuitry Details

Covers frequency coverage, impedance, SWR sensitivity, measurement range, and tolerance for the SWR/Power meter.

Tuner Circuitry Specifications

Details frequency bands, impedance matching, power ratings, and insertion loss for the antenna tuner circuit.

Unit Sundry Information

Includes input/output connectors, physical dimensions, and net weight of the antenna tuner unit.

Front Panel Controls and Indicators

Meter and Power Range Indicators

Describes the cross-needle meter for SWR/power and the LEDs indicating the selected power range.

Selector and Tuning Controls

Explains controls like Power Range Selector, Antenna Selector, Tuner Switch, TR Matching, and Band change-over.

Capacitor Tuning Knobs

Details the tuning knobs for the input (VC-1) and output (VC-2) capacitors for impedance matching.

Rear Panel Connections

RF and Ground Terminals

Specifies connections for antennas, dummy loads, transmitters, and the essential earth ground terminal.

DC Power Input

Identifies the DC socket used for powering the unit's indicator LEDs.

SWR/Power Meter Operation Guide

Preparation for Meter Measurement

Outlines connection requirements, frequency limits, and switch settings for independent SWR/power meter use.

Measurement Procedures

Details how to perform measurements for forward, reflected, and effective radiated power using the meter.

Antenna Tuner Operation Guide

Preparation for Tuner Operation

Covers continuity of connections and correct band selection for effective antenna tuning operations.

Tuning Procedure for Optimal Match

Provides steps to adjust tuning knobs for achieving the best SWR and maximizing transmitter output power.

Important Cautions and Troubleshooting

Operational Safety Cautions

Warns against critical actions like changing switches during transmission or using excessive power.

Indicator LEDs and SWR Issues

Explains the function of indicator LEDs and offers advice for troubleshooting unresolvable SWR problems.

Schematic Diagram

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