ITT Mackay Type 3020A Receiver
Manufacturer:
Model:
Mackay Type 3020A
Date:
1972
Category:
Group:
Description:
Marine Radio Receiver

Information

The ITT Mackay Marine Model 3020A Radio Receiver is a solid-state dual-conversion superheterodyne Receiver providing continuous frequency coverage from 15 KHz to 29. 9999 MHz. This section generally describes the 3020A Receiver and lists the major components and corresponding part numbers. Included are electrical considerations and characteristics applicable to the 3020A.

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Service and User Manual
Manual type:
Service and User Manual
Pages:
80
Size:
5.70 Mbytes (5981340 Bytes)
Language:
english
Revision:
Manual ID:
690001-000
Date:
Quality:
Scanned document, all readable.
Upload date:
2014 01 26
MD5:
c3449712fa6b55889695af0074ededa4
Downloads:
1344

Information

GENERAL DESCRIPTION 4. 2 Page 1. 1 Introduction 1. 1 1. 2 Description 1. 1 a. Mechanical 1. 1 b. Major Components 1. 2 c. Electrical 1. 3 1, 3 Electrical Characteristics 1. 3 1. 4 Comparison of ITT Synthesized Receivers 1. 5 INSTALLATION 2. 1 Cabinet/Rack 2. 1 2. 2 Power Connections 2. 1 2. 3 Other Rear Panel Connections 2. 1 2. 4 Fuses OPERATING INSTRUCTIONS 3. 1 Controls 3. 1 3. 2 SSB Operation 3. 2 3. 3 CW Operation 3. 3 3. 4 AM Operation 3. 3 3. 5 Duplex Operation 3. 4 TECHNICAL DESCRIPTION 4. 1 Signal Path 4. 1 a. Block Diagram Analysis 4. 1 b. Preselector 4. 2 c. RF Section 4. 2 d. 2nd Mixer 4. 5 e. 8 MHz IF Amplifier 4. 5 f. Information Filters 4. 5 g. AM and Product Detectors 4. 6 h. Audio Amplifier 4. 6 i. AGC Amplifier 4. 6 j • Variable BFO 4. 7 k. Regulator 4. 7 Synthesizer a. Block Diagram Analysis 4. 8 b. Low Frequency Reference 4. 12 c. VHF Reference Card 4. 12 d. Minor Loop Analog 4. 13 e. Minor Loop Variable Divider 4. 13 4. 2 Synthesizer (Cont) f. Loop Translator 4. 14 g. Minor Loop Variable Decoder 4. 14 h. Decoder 4, 16 i. Major Loop Analog and Acquisition 4. 16 j • Major Loop VCO Buffer 4. 17 GENERAL SERVICE INFORMATION 5. 1 Introduction 5. 1 5. 2 Synthesizer 5. 2 CARD TEST AND SETUP INSTRUCTIONS Introduction 6. 1 a. RF Section Alignment 6. 1 b. 2nd Mixer Alignment 6. 2 c. 8 MHz IF Amplifier Alignment 6. 3 d. AM and Product Detector Alignment 6. 4 e. AGC Amplifier Alignment 6, 4 f. Regulator Alignment 6. 5 Synthesizer Adjustments 6. 5 a. Minor Loop Analog Alignment 6. 5 b. Loop Translator Alignment 6. 6 c. VHF Reference Alignment 6. 8 d. Major Loop Analog and Acquisition Alignment 6. 8 SCHEMATIC, WIRING, ASSEMBLY DRAWINGS, AND SPARE PARTS LIST 7. 1 Signal Path Block Diagram 4. 3 Synthesizer Block Diagram 4. 9 3020A Truth Tables 5. 3 Test Set-up: 88. 45-MHz Filter Adjustment 6. 7 Response of 88. 45-MHz Filter 6. 7

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