importance of swr with wifi


I've lately picked up an interest in wifi, mainly, as an option to
untangle myself from cables. As an amateur radio hobbyist, I understand
the principles of the radio hardware involved but not the
firmware/software aspects of wifi. I can save that for later. The
question I have is about the antenna system. I've seen several DIY
parabolic contraptions you can make from cardboard and aluminum foil to
place on the 'antenna' to increase the range and directional
characteristics. With the transmitters I'm familiar with, you just
can't start modifying the antenna system, with no regard for SWR. Could
someone explain if SWR is critical to a wifi transmitter? I'm assuming
since they appear to be a relatively low power device, they can either
tolerate a high SWR or have built-in protection. I'm not so concerned
with SWR as it relates to the efficiency of the antenna system but more
with the potential to cause damage to the transmitter.


------------------------------------------------------------------------
View this thread: http://www.wirelessforums.org/showthread.php?t=30298
http://www.wirelessforums.org

.

Relevant Pages

  • Re: importance of swr with wifi
    ... This approach is easier than trying to make SWR ... measurements on antennas as transmitting devices. ... can't start modifying the antenna system, ... someone explain if SWR is critical to a wifi transmitter? ...
    (alt.internet.wireless)
  • Re: Video Sender Interference
    ... I've got a Digisender video transmitter unit with two receivers, ... also have WiFi computer networking operating. ... tried altering channels on both the Video sender unit and the WiFi ...
    (uk.tech.digital-tv)
  • Re: Video Sender Interference
    ... on a specific channel, however that doesn't always mean that the card won't ... My Video transmitter is in a different room to my WiFi transmitter. ...
    (uk.tech.digital-tv)
  • Re: DIY WiFi antenna (to increase reception)
    ... > must be able to see the transmitter. ... to propagation of much longer wavelengths and much longer transmission ... > will work perfectly well in any normal house or apartment. ... > to render a good WiFi device completely reliable. ...
    (comp.os.linux.networking)
  • Re: Verizon Opens Up WiFi Access To Broadband Users!
    ... then pick which transmitter you want to log. ... I'd never send my bank account access over wifi. ... SSL is pretty safe once you're logged in, but your "sign on" credentials are transmitted unencrypted over open Wi-Fi. ...
    (alt.cellular.verizon)