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Manuals
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ElectroCom Manuals
Media Converter
400
Instruction manual
ElectroCom 400 Instruction Manual
Frequency shift converters
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Contents
Table of Contents
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Table of Contents
Table of Contents
Section 1, Description
General
Specifications
Options
Section 2, Installation
External Connections
Audio Input
AFSK Jack
Key
Teletypewriter
FSK Keying Voltage
Send Control
Remote Standby
TTY Motor Receptacle
Section 3, Operation
Front Panel Controls, ~Odel 400
Channel
Shift
Baud
Keying
Bias
Power
Front Panel Controls. Model 402
Channel
Space Freq
Mark Freq
Keying, Baud & Power Switches
Bias Adjustment
Internal Controls
Loop Current Adjustment
Polar Current Adjustment
CRT Controls
Channel #1 Adjustments
Anti-Space Circuit
Front Panel Indicators
CRT Monitor and Tuning Indicator
Shift Measurement
Transmitter Shift Adjustment
Receiver Tuning
Diversity Operation
Section 4, Theory of Operation
Overall System Operation
Demodulation
Logic. Control & Keying
Monitor
Power Supply
Subassembly Circuit Operation
Demodulator Card
Logic Card
Monitor Card
Power /Keyer Card
Section 5, Maintenance
General
Preliminary Adjustments
Simplified Demodulator Adjustments
Laboratory Calibration
Demodulator Card
Logic Card. P. N
Demodulator Card, P. N. 400·1 00
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