<http://www.odessaoffice.com/wireless/>
Marlon, one of the reasons I got into this business.... I curse him every day. :) ryan On Fri, Dec 11, 2009 at 8:03 AM, Steve Barnes <[email protected]> wrote: > Marlon do you have a list or single access to all these little articles you > have written. Or do you just hand them out when you find it helpful. > > Steve Barnes > Manager > PCS-WIN > RC-WiFi Wireless Internet Service > > Character cannot be developed in ease and quiet. Only through experience of > trial and suffering can the soul be strengthened, vision cleared, ambition > inspired, and success achieved. > - Helen Keller > > > -----Original Message----- > From: [email protected] [mailto:[email protected]] On > Behalf Of Marlon K. Schafer > Sent: Friday, December 11, 2009 10:46 AM > To: WISPA General List > Subject: Re: [WISPA] Yagi vs. Grid? > > > http://www.odessaoffice.com/wireless/antenna/how_to_pick_the_right_antenna.htm > > Take a look at the antenna patterns in there. A yagi is actually a very > nice antenna. Much better than a grid as far as MOST of the antenna > pattern > goes. > > I like panels better because they tend to be even better yet. > > You can't get too big with a yagi. For lots of gain you need a grid or > dish. > > When Mike says grids leak he's talking about the RF not water (though that > can happen too). > > laters, > marlon > > ----- Original Message ----- > From: "Mike" <[email protected]> > To: "WISPA General List" <[email protected]> > Sent: Friday, December 11, 2009 7:31 AM > Subject: Re: [WISPA] Yagi vs. Grid? > > > > It's harder to get as much gain out of a Yagi as you can out of a > > parabolic antenna. > > > > Both a grid and Yagi can suffer from ice loading. A Yagi can be > > encased in a radome to eliminate that hazard. > > > > Most grids I've seen leak horribly. That is, they tend to spew RF > > out the back because of the grid spacing. They still have the > > forward gain, but spew to the rear. > > > > When world hams were preparing for the launch of P3D, a lot of > > experiments were going on in 2.4G because one of the transponders > > used that band. The front to back ratio issues were solved by > > covering the grid with a finer mesh. > > > > A Yagi, compared to the grid has a better front to back ratio, but > > has more pronounced side lobes and other minor lobes. > > > > I know you were asking about comparisons between a Yagi and a > > Grid. 2.4G, it depends on what you are doing. 5.8G, a solid dish > > with a radome wins every time; font to back ratio, side lobes, and > > the radome seals from ice, snow, hornets and decreases the wind load > > because of the Bernoulli effect. > > > > mg > > > > > > At 09:18 AM 12/11/2009, you wrote: > >>Any benefit of generally using a yagi over a wire grid or vice versa for > a > >>CPE install? > >> > >> > >> > >>Robert West > >> > >>Just Micro Digital Services Inc. > >> > >>740-335-7020 > >> > >> > >> > >> > >> > > >>-------------------------------------------------------------------------------- > >>WISPA Wants You! Join today! > >>http://signup.wispa.org/ > > >>-------------------------------------------------------------------------------- > >> > >>WISPA Wireless List: [email protected] > >> > >>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: [email protected] > > > > 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: [email protected] > > 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: [email protected] > > 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: [email protected] Subscribe/Unsubscribe: http://lists.wispa.org/mailman/listinfo/wireless Archives: http://lists.wispa.org/pipermail/wireless/
