Re: [ATM] Extending a wifi network

["Don Clement" <clement.focuser@verizon.net>]

  (Friis' Formula) It's also the reason why the first gain stage or LNA
(sometimes also the downconverter) is typically placed close the antenna or
in the case of many parabolic antennae, physically at the focus. At 2.4 Ghz,
coax and connector losses are proportionally higher.



-Don Clement



> That's why you use the very best coax you can afford. And even if you
loose
> 2 or 3db it's not going to prevent something like a yagi or backfire from
> making it. After all he's just making it with a 7db omni, stick something
> more directional on it, and then stick a fork in it; you're done
> (metaphorically speaking of course). If you want more; stick another one
> (yagi or backfire) the observatory and you'll have full throughput both
> ways.
> I prefer the backfire for this use because the side lobes aren't as broad.
>
> Jack
> -----Original Message-----
> From: atm-bounces@atmlist.net [mailto:atm-bounces@atmlist.net] On Behalf
Of
> Don Clement
> Sent: Thursday, December 08, 2005 1:17 PM
> To: atm@atmlist.net
> Subject: Re: [ATM] Extending a wifi network
>
> Loss from added coax  cable and associated coax connectors could reduce
the
> advantage gained from use of a directional high gain antenna.  see Friis'
> Formula. http://en.wikipedia.org/wiki/Friis'_formula
>
>
>
> Don Clement
>
>
> _______________________________________________
> ATM mailing list http://www.atmlist.net/

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