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"Tri-Pacer" <nospam@hotmail.com> wrote in message
news:tvadna8frcCJUvHeRVn-gA@comcast.com...
>I've on hand a triplexer with outputs for 2 VORs and one GS with one
>antenna input.
>
> I know that there will be signal attenuation with this setup, but what
> will be the real world effect? Will the VOR receiver be so desensitized
> that it will be next to useless?
If the antenna fed to the VOR/LOC receiver directly allowed usable signal
out to 100 miles, putting the splitter in the line reduces the usable signal
to 70 miles. i.e. a 30% reduction in range. In practice hardly noticeable.
> Will the ILS performance suffer greatly?
The localizer range is affected identically to the VOR signal as described
above. The range to glide slope will have practically no change.
>
> If I remove one of the VOR receivers should I terminate the unused output
> with a 50 ohm resistor?
It is generally considered a good idea to do so. A quarter-watt 47 ohm
carbon resistor will work quite well and can be soldered directly into a BNC
(m) connector.
Jim
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Re: signal splitter
