Dan Dugan wrote:
> Rich Peet, you wrote,
>
>
>>Or maybe those infrared headphone units are more problem
>>free? The infrared units I have found so far are also 110 volt on
>>the receiver end.
>
>
> I think you mean the transmitter end, the headphones have a battery
> in them. I experimented with infrared stereo headphones some years
> ago when they first came out. They would fuzz out even near the
> transmitter if the receiver diode was shadowed. Definitely a
> short-range technology.
>
> I was able to get a clear stereo transmission over a hundred yards
> down the railroad tracks that were in back of my place. I used 6"
> theatrical fresnel lenses to focus the beam. Only suitable for a
> fixed installation, of course.
We have a older RF headphone, 10 years or more old. Plug in base,
rechargeable headphone. Not up to mowing the lawn (which is up to 800'
away outside), but just fine around the house. Decent enough sound
quality. I'd expect the newer ones might have a little better range.
Walt
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