用户手册 — Ritron RIT44-465

目录

• Pub. RLR-465 MRM

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• RLR-465NX

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• PROGRAMMABLE NXDN 10W REPEATER

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• 1. SPECIFICATIONS

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• 2. INTRODUCTION

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• GENERAL

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• INSPECTION

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• MODEL IDENTIFICATION

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• FCC REGULATIONS

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• RF SAFETY ISSUES

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• RITRON, INC. LIMITED WARRANTY

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• 3. OPERATION

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• GENERAL OPERATION

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• DUTY CYCLE/TEMPERATURE LIMITS

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• INDICATORS

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• CONNECTORS

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• 3.4.1 Antenna Connector

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• 3.4.2 DC Power Connector

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• 3.4.3 Interface Connector

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• 3.4.4 Mini USB programming port

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• 4. REPEATER FEATURES

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• PROGRAMMING SETUP

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• COMPUTER SOFTWARE COPYRIGHTS

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• 5. THEORY OF OPERATION

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• DUPLEXER

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• RECEIVER

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• 5.2.1 Front-End

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• 5.2.2 1st IF

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• 5.2.3 2nd IF Sub-System

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• 5.2.4 1ST Local Oscillator/Receive Synthesizer

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• 5.2.5 2ND Local Oscillator

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• 5.2.6 Base band data

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• TRANSMITTER

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• 5.3.1 Transmit Synthesizer

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• 5.3.2 RF Power Amplifier Stages

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• 5.3.3 Transmitter signaling

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• POWER DISTRIBUTION

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• MICROCONTROLLER

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• 6. FACTORY ALIGNMENT

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• DUPLEXER

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• RECEIVER

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• 6.2.1 RX VCO Band adjustment and reference Oscillator tuning

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• 6.2.2 RX filter alignment and Sensitivity

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• 6.2.3 2nd IF local oscillator trimming for minimum filter distortion

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• 6.2.4 Squelch

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• TRANSMITTER

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• 6.3.1 TX frequency adjustment

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• 6.3.2 TX VCO Band, Modulation Balance and Deviation adjustment

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• 6.3.4 TX power adjustment

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