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Racal Acoustics Manuals
Radio
RA 1217
Operator's manual
Racal Acoustics RA 1217 Operator's Manual
H.f. communications receiver
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Table Of Contents
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Contents
Table of Contents
Bookmarks
Table of Contents
Adjustments
Servicing
Switch off
First Aid
Contents
List of Illustrations
Technical Specification
General Description
Introduction
Technical Information
Ancillary Equipment
General Information
Tuning
Audio Outputs
Construction
Power Supply
Handbook Notes
Circuit References
Control References
Modifications
Installation
Removal of Covers
Dust Covers
Module Covers
Rear Panel Connections
R.F. Input
12-Way Socket
Terminal Block
Coaxial Outlets
Preparation for Use
General Inspection
A.C./D.C. Switch
Voltage Selector Switch
Power Supply Connection
Connections to Ancillary Units
Phones
Connecting the Synthesizer
L.F. Adaptor Connections
I.S.B. Adaptor Connections
Rear Panel Sockets
Concise Data
External Inputs
External Outputs
Operating Instructions
Functions of Controls
System Switch
R.F. Range Control
R.F. Tune Control
Calibration
Khz Readout Calibration
B.F.O. Calibration
Receiver Tuning
Single Sideband Reception
Operating with a Synthesizer
Additional Operating Information
Operating with an L.F. Adaptor
Receiving down
Brief Technical Description
Wadley System
Drift Cancellation
Signal Path
Harmonic Mixer Path
Second Mixer
Kilehertz Tuning
Frequency Inversion
L.F. Adaptor Unit
Panoramic Adaptor Unit
Overall Tuning Example
Final I.F. Stages
A.G.C. Circuits
R.F. Gain Control
Detector Circuits
B.F.O. Circuits
Audio Stages
I.F. Converters
Power Supply Modules
Initial Fault Location
Preliminary Checks
General Diagnosis
Power Check
I.F. Module Check
Front End Check
RF HT Check
A.G.C. Fault
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