Nav Comm Section 2 part3 Flashcards
What is the purpose of the balun used in an antenna installation?
Balance a dipole antenna, to unbalanced transmission line
What is done to reinforce the area around where an antenna is going to be installed?
Doubler
Where can you as a mechanic look to find the procedures for installing a new antenna, not replacing an old antenna?
Ac 43.13
What is done to prevent corrosion from forming under an antenna which requires bonding with the aircraft skin?
Seal doubler
At what intervals should coax cable be secured?
Every 2 feet
What is the minimum bend radius for coax cable?
6 times the outside diameter
What should the resistance be between the center conductor & the shield of a coax cable?
Should not touch at all and it should read ol on the ohm meter
What areas should be used first when performing a new installation of a radio in an aircraft?
Area built to hold the load, baggage compartment, cargo
What devices should be avoided when installing a radio during a new installation?
Power tools
If you are installing a radio under a seat, what is the minimum clearance required?
1”
Besides a Logbook entry, what paperwork may be required when installing a new radio?
Fill out 337 form
What is the purpose of shock mounts used under radio trays?
Protect radio from sudden movement during flight
What must be done to a radio tray if it is to be supported by rubber shock mounts?
It needs to be grounded, bonded to the aircraft
Where are static dischargers located on the aircraft?
Trailing edge of the flight controls
What are three types of static dischargers?
Small aircraft is- flexible
Mid side- semi flexible
Commercial aircraft- rigid
