The noise figure of the receiver front end or of a low noise amplifier will help you to pick out a weak signal in the absence of interference. But you are talking about an environment of interference. A low noise amplifier could actually hurt in this case depending on the third order intercept point of the unit. It all goes back to carrier to interference ratio and modulation methods. FSK is better than QAM in this respect. I would assume DSSS would be better but I don't know if any WISP manufacturer uses DSSS. OFDM should be really good. ----- Original Message ----- From: "Rogelio" <[EMAIL PROTECTED]> To: "WISPA General List" <wireless@wispa.org> Sent: Thursday, June 12, 2008 7:14 AM Subject: Re: [WISPA] good multiradio wifi units for noise environments?
> Jack Unger wrote: >> Noise is noise and will destroy performance on any radio. > > Might low noise amplifiers help in these situations? > > http://en.wikipedia.org/wiki/Low-noise_amplifier > > > -------------------------------------------------------------------------------- > WISPA Wants You! Join today! > http://signup.wispa.org/ > -------------------------------------------------------------------------------- > > WISPA Wireless List: wireless@wispa.org > > Subscribe/Unsubscribe: > http://lists.wispa.org/mailman/listinfo/wireless > > Archives: http://lists.wispa.org/pipermail/wireless/ > -------------------------------------------------------------------------------- WISPA Wants You! Join today! http://signup.wispa.org/ -------------------------------------------------------------------------------- WISPA Wireless List: wireless@wispa.org Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
