ITT Mackay Type 3020A Ricevitore
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Modello:
Mackay Type 3020A
Data:
1972
Categoria:
Gruppo:
Descrizione:
Marine Radio Receiver
Informazioni
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.
Tipo di manuale:
Servizio e manuale utente
Pagine:
80
Dimensione:
5.70 Mbytes (5981340 Bytes)
Lingua:
english
Revisione:
ID del manuale:
690001-000
Data:
Qualità:
Documento scansionato, tutto leggibile.
Data caricamento:
2014 01 26
MD5:
c3449712fa6b55889695af0074ededa4
Scaricamenti:
1344
Informazioni
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