[TowerTalk] Beacon interference

[Roger (K8RI)]

Robb Urie wrote:
> Dave,
>
> Navaid "TV" is a high powered NDB located near your location.  The official 
> designation is an LOM which is a combined NDB and ILS outer marker, hence 
> the two letter morse code ID verses a nornal 3 letter for a stand alone NDB. 
> The NDB operates on 365 kHz at 300 watts, most likely into a small top hat 
> antenna or small mono pole.  The outer marker operates on 75 MHz and keys a 
> 400 Hz tone without identification.  Both are likely monitored at the air 
> traffic control tower, but depending on the model, the monitor may be a 
> simple RF level indicator.  Generally any pilot reports of a missing signal 
> or ID issues will be relayed to the servicing FAA maintenance shop.  Unless 
> there is an instance of some type of RF rectification occuring with the NDB 
> antenna or supporting structure, I would look somewhere else.
>
> You can find the information for this site at www.airnav.com and enter the 
> ID when prompted.  This will give you the Lat/Long and other data that my 
> help.  If you
> determine that the problem is coming from that site, drop me a email and I 
> will contact the FAA SSC that maintains it.
>
> Good luck
>
> Robb NØRU
>
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