Shared Flashcard Set

Details

NCT4
Network Tech 4 Module 4
22
Communication
Professional
02/01/2015

Additional Communication Flashcards

 


 

Cards

Term
FCC year 1976
Definition
An incident caused them to establise new CLI requirements
Term
If the carriers exceed an average power of 38.75 dBmV
Definition
A law set by the FCC in 1985 that required offsets
Term
CLI detectors range of frequencies
Definition
54MHz-216MHz
Term
54-216 MHz is measeured at what
Definition
20uv/m @ 3 meters
Term
<54MHz and >216Mhz is measured at
Definition
15uv/m@ 30 meters
Term
aeronautical frequencey bands
Definition
108-137, 225-400
Term
aeronautical radio frequencey bands are spaced at 25KHz, our offset is
Definition
12.5 +or- 5KHz
Term
aeronautical navigation frequency carriers are spaced 50KHz ours is
Definition
25 KHz + or - 5KHz
Term
Ground based CLI testing must cover
Definition
75%
Term
Any leak measured over ___ mV/m should be entered into the signal leakage log.
Definition
20
Term
The FCC form that all leaks must be entered onto
Definition
FCC form 320
Term
The largest CLI leaks are caused by
Definition
amps
Term
90% of CLI comes from
Definition
f-conn at customers homes
Term
RFI-Gasket
Definition
Woven metal gasket where 2 sections of a device connect
Term
Dipole Antenna
Definition
an aerial half a wavelength long consisting of of two rods
Term
Triangulation
Definition
used with a dipole antenna to pinpoint a leak
Term
FCC form 320 data required
Definition
Date, location,cause,strength,distance, date repaired, strength after repair
Term
FCC CLI test compliance
Definition
done once a year on a rolling 12 month calendar
Term
CLI arerial Fly over
Definition
done at 1500 feet using 108-137 MHz band
Term
FCC CLI test requirments
Definition
100% flyover,75% ground, comcast 100%,
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