VHF Nav

ARN-1
Frequency Range  · 000 MHz
Power Out            · 0 watts (passive)

About VHF Nav

           First of all, when referring to VHF Nav, we're really referring to 4 systems, 3 of which are collectively referred to as ILS (Instrument Landing System):

VOR - VHF Omni-Range - This system gives you bearing to a station.
LOC - Localizer - This gives you left/right commands when landing.
GS - Glideslope - This gives you up/down commands when landing.
MB - Marker Beacon - This gives audio/visual reminder information on approach.

VOR - VHF Omni-Range
VOR gives 2 pieces of information to the flight crew: Bearing to a station & BIT. Unlike TACAN, VOR has some very simple theory of operation behind it. It uses an antenna with...

Now, let's skim over some other LRUs of the ARN-1:

R-2325 - The receiver
C - The control

Basic Troubleshooting

antenna switching...



Take the VHF Nav test
On to GPS
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