Re: Extend Range

["Russell Brill" <russwbrill@xxxxxxxxxxxxx>]

Funny, that's what I was thinking too........ :-))

"Crash Gordon" <webmaster@xxxxxxxxxxxxxxxxxxxxx> wrote in message
news:gXE4f.41$sd7.2175@xxxxxxxxxxxxxxxxxx
> AND if you ran that out a few more feet...you could just run a wire to the
> door/window.
>
>
> "petem" <petem001@xxxxxxxxx> wrote in message
> news:InE4f.6253$Ms1.435542@xxxxxxxxxxxxxxxxxxxxxx
> | if you use twice the length you have yourself a 1/2 wave antenna..
> |
> | 4 time a full length antenna..
> |
> | anything between and you have a un tuned antenna witch is usually worst
> then
> | no antenna
> |
> |
> |
> |
> | "Rich" <Never@xxxxxxx> a écrit dans le message de
> | news: -s6dnWD9LfCSlc7eRVn-tQ@xxxxxxxxxxxxxx
> | > What would happen if I add a longer wire to the receiver?
> | >
> | >
> | >
> | >
> | > "alarman" <alarman2000@xxxxxxxxx> wrote in message
> | > news:rpD4f.77592$lq6.23052@xxxxxxxxxxxxx
> | >>
> | >> "bdolph" <bdolph@xxxxxxxxxxx> wrote in message
> | >> news:U7D4f.2468$4O1.2194@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> | >> > Many years ago I used to make a dipole to extend the range of these
> | >> > transmitters.  I could get them to transmit across a street to
> another
> | >> > house.  It must be the correct dimensions and trimmed to the
> | >> > transmitters frequency.   Somebody as linear may have the
> dimensions
> to
> | >> > build this.  Let us know if you find them.
> | >>
> | >> wavelength in meters = 300 / frequency in MHz
> | >>
> | >> A 433 MHz transmitter has a wavelength of .6928406 meters, or
> 27.270206
> | >> inches. You HAM guys can check my math, but
> | >> theoretically, you could make a quarter-wave antenna of approx. 6.82
> | > inches.
> | >>
> | >> js
> | >>
> | >>
> | >
> | >
> |
> |
>
>