I have been using Arc 19db panels instead of grids recently. I will be moving that way more. Only disadvantage I see is with the grids we mount the radio at the bottom of the TV tower for easy maintenance. With the panels we are using the integrated enclosure, which is really nice, but the radio ends up 30+ in the air making service a little more difficult.
Robert West wrote: > And I always suffer from gain envy. Must be why I've always used grids. > Thanks for the info, I only have a few panels but they are 900mhz, thinking > about trying some Arc panels though for 5 and 2.4 to see how they do. > > > Bob- > > > -----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.h > tm > > 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/ > > > -- Scott Reed Sr. Systems Engineer GAB Midwest 1-800-363-1544 x4000 Cell: 260-273-7239 -------------------------------------------------------------------------------- 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/
