Page 2 (General)

Narco Avionics COM 120 TSO - General; Manual Organization; Product Description

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Table of Contents

General2
Manual Organization2
Product Description2
Design Features3
Product Specifications4
TSO Explanation5
Temperature and Altitude - Category A2C16
Humidity - Category a6
Vibration - Categories PKS6
Not Applicable - Category X6
Magnetic Effect - Category Z7
Power Input - Category B7
Voltage Spike - Category B7
Electromagnetic Compatibility - Category a7
Units and Accessories Supplied8
Com 120 Units and Accessories Supplied8
Com 120/20 Units and Accessories Supplied8
Installation Kits9
Accessories Required but Not Supplied10
Operator License Requirements11
Operation11
Com 120 TSO Front Panel11
Systems12
VCA-11 Antenna12
Mounting Locations and Ground Plane Considerations12
Mounting13
VCA-11 Physical Dimensions13
Preliminary Inspection14
Unpacking14
Electrical Bench Test15
Test Equipment Recommended15
Bench Test Set-Up15
Microphone Gain Adjustment16
Com 12016
Com 120 (ACGBF and Later) and Com 120/2016
Sidetone Adjustment17
Tone Control Adjustment18
Mechanical Installation19
Mounting Tray19
Insertion and Removal19
Interconnect Cable Ass'y20
Installation Drawing21
Installation Drawing (Tray with Removable Rear)22
Tray with Removable Rear Plate23
Mounting Tray, Rear View23
Tray Assembly Installation Procedure23
Unit Installation23
Electrical Installation24
Antenna Cable RF Connector Assembly24
Interconnect Cable24
Com 120 Interconnection Diagrams, 14 and 28V25
Com 120/20 Interconnect Diagrams, 14 and 28V26
Crimping Tool27
Cable Fabrication27
Pilot Light Control28
Extraction28
Crimping with Pilers28
Audio Input Connections29
Cabin Speaker Amplifier29
Summing Network29
Cabin Amplifier Modification30
General Recommendations for Helicopters31
Method to Increase Phone Audio Output31
Basic Com Unit Helicopter Intercom Wiring32
Helicopter External Wiring33
Post Installation Tests33
Pre Flight Test33
Tone Control Location34
Aircraft License Requirements35

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