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WiFi

Discussion in 'Electronic Design' started by John Larkin, Aug 7, 2009.

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  1. John Larkin

    John Larkin Guest

    10 Mbit WiFi works much better than 100 Mbit WiFi.

    Just thought I'd point that out.

    John
     
  2. Jim Thompson

    Jim Thompson Guest

    And CAT-5 works even better ;-)

    ...Jim Thompson
    --
    | James E.Thompson, P.E. | mens |
    | Analog Innovations, Inc. | et |
    | Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
    | Phoenix, Arizona 85048 Skype: Contacts Only | |
    | Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
    | E-mail Icon at http://www.analog-innovations.com | 1962 |

    I love to cook with wine Sometimes I even put it in the food
     
  3. Fred Bartoli

    Fred Bartoli Guest

    Dirk Bruere at NeoPax a écrit :
    But strangely, with very high S/N ratios you can get sudden loss of
    transmission...
     
  4. Jim Thompson

    Jim Thompson Guest

    Place a space between the hyphen and the link (as above), otherwise it
    doesn't work :-(

    ...Jim Thompson
    --
    | James E.Thompson, P.E. | mens |
    | Analog Innovations, Inc. | et |
    | Analog/Mixed-Signal ASIC's and Discrete Systems | manus |
    | Phoenix, Arizona 85048 Skype: Contacts Only | |
    | Voice:(480)460-2350 Fax: Available upon request | Brass Rat |
    | E-mail Icon at http://www.analog-innovations.com | 1962 |

    I love to cook with wine Sometimes I even put it in the food
     
  5. Joerg

    Joerg Guest

    Same with the "new and improved" digital television. 50dbuV yet ... poof
    .... no signal :-(
     
  6. A year ago I picked up a Netgear 10mb AP for a sale price of $2.95 after
    rebate ;)
    Works well, even better with a N card. Thru 2 brick walls to boot.

    Cheers
     
  7. Joerg

    Joerg Guest

    Sometimes you can get lucky and there are reflections from other objects
    to make up for a low signal situation. In this house here (aluminum
    backed insulation in all walls including interior ones) the old rule
    applies. The lower the frequency the better stuff works.
     
  8. Guest

    The real problem with omnidirectional systems in multiple GHz
    frequencies is the ridiculously small capture area of the _receiving_
    antenna.

    The situation gets even worse on higher frequencies. For instance with
    60 GHz short range high speed uncompressed video links, some active
    beam forming (using multiple antenna elements) must be used even with
    the same room.

    Microwave signals bounces around very well in urban areas with hard
    surfaces, also penetrating through small holes and ducts between
    rooms. However, vegetation absorbs the signal quite quickly.
     
  9. Rich Webb

    Rich Webb Guest

    Sometimes Usenet servers regurgitate old posts. Not to say that it is
    the case here but it can happen. EasyNews coughed-up hundreds of 2-3
    year old posts in the s.e.* tree a few weeks ago.

    Of course, that just moves the question back one layer: why do Usenet
    servers suddenly dump two year old posts? ;-)
     
  10. JW

    JW Guest

    Usually a wormhole is to blame, but it can also be due to a *very* slow
    server.
     
  11. Guest


    There appears to be some really BIG (years) problems in time zone
    calculations, since as I see it, the message that I was replying to
    showed message headers like

    Date: Tue, 22 Feb 2011 10:00:17 -0800 (PST)
    Message-ID:
    <>
    NNTP-Posting-Date: Tue, 22 Feb 2011 18:00:17 +0000 (UTC)

    Since people in the US use some strange units for measurements, I
    would not be too surprised if they use some special calendars (e.g.
    years since Columbus hit some islands in the Caribbean) and all NEWS
    systems does not seem to be able to perform the conversion
    properly:).

    Sorry for the confusion if this is the case.
     
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