Geräte Informationen:

ITT Mackay Type 3020A Receiver
Hersteller:
ITT
Modell: Mackay Type 3020A
Datum: 1972
Kategorie: Funk und Kommunikation
Gruppe: Receiver
Beschreibung: Marine Radio Receiver
Informationen:
                                    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.

Folgende Anleitungen sind für obiges Gerät verfügbar:

ITT -- Mackay Type 3020A -- Service- und Bedienungsanleitung
Dateiname: ITT-5456-Manual-Page-1-Picture
Dokumenttyp: Service- und Bedienungsanleitung
Seitenanzahl: 80
Dateigröße: 5.70 Mbytes (5981340 Bytes)
Sprache: Englisch
Revision:
Dokument-ID/Nummer: 690001-000
Datum: 1972
Qualität: Gescanntes Dokument, alles ist lesbar.
Upload Datum:
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ed2kID: 464485ae36cefab061e69f0e3efdf52f
Downloads: 287 seit 26 Januar 2014
Informationen:
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
ITT-5456-Manual-Page-1-Picture
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