http://www.radiolabs.com/products/antennas/2.4gig/2.4-aluminum-parabolic.php
If you've got to go 10 miles, then you need gain. From the website. *2.4 GHz 24db Directional Parabolic Grid WiFi Antenna* *The Directional High Gain WiFi Parabolic Grid* WiFi Antenna offers 24dBi gain at the connector and a tight 8 Degree beamwidth. The high gain wifi antenna is an aluminum die cast which is then powder coat painted for added environmental protection. Because of its grid design the antenna offers excellent wind loading characteristics. Michael Baird wrote: > Marlon, > > Not sure what you are saying here. According to the vendors specificatons. > > Teletronics 15-124 - 19DB horizontal w/8 degree vertical beamwidth. > Tranzeo TR-24H-120-16 - 16DB horizontal w/6 degree vertical beamwidth. > > Yes it is odd that the Teletronics claims a higher VB, but then again > it, it cost a lot more and should be a better antenna, as I believe gain > not only comes with narrowing coverage (sector width), but antenna design. > > Regards > Michael Baird > >> Gain only comes from narrowing coverage with antennas. >> >> If there are both 120* antennas you can't have HIGHER gain with GREATER >> coverage.... It takes half the coverage area go give you twice the power >> (3DB of gain). >> >> http://www.odessaoffice.com/wireless/antenna/how_to_pick_the_right_antenna.htm >> >> laters, >> marlon >> >> ----- Original Message ----- >> From: "Michael Baird" <m...@tc3net.com> >> To: "WISPA General List" <wireless@wispa.org> >> Sent: Sunday, June 28, 2009 2:32 PM >> Subject: Re: [WISPA] Antenna Performance >> >> >> >> >>> Not ,the same downtilt angle, same percentage as the old one. The >>> previous antenna was a Tranzeo 16db w/6 degree vertical, the Teletronics >>> 19db has a 8 degree vertical actually larger VB then the 16db at 6. They >>> are both at .3 degrees downtilt. The only reason I mention the VSWR is >>> because the teletronics VSWR is 1.1:4, vs 1.5 on the Tranzeo. The >>> Teletronics is down about 6db on the CPE side for all the clients on the >>> test sector, on the AP side it's the same. I tested multiple tilt's as >>> well, between 0-1 degree was the best on the CPE side. >>> >>> Regards >>> Michael Baird >>> >>> >>>> First thing that comes to my mind reading your post is that you installed >>>> a >>>> higher gain antenna which means your vertical beam is going to be >>>> narrower >>>> (sometimes higher gain is not always better). Being that you installed >>>> the >>>> antenna with the same down tilt angle your missing the mark because you >>>> have >>>> a narrower vertical beam. >>>> >>>> As for the VSWR nothing really considered too low. If your VSWR is higher >>>> then 1.5:1 then you have a problem for sure. >>>> >>>> Personally never used or tested TT's 15-124 antenna but have sold a few >>>> of >>>> them with no complaints on it as far as I know. >>>> >>>> -----Original Message----- >>>> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On >>>> Behalf Of Michael Baird >>>> Sent: Sunday, June 28, 2009 8:33 AM >>>> To: WISPA General List >>>> Subject: [WISPA] Antenna Performance >>>> >>>> I picked up a Teletronics 15-124 19db horizontal antenna for testing and >>>> deployed it in place of a Tranzeo 16db Horizontal (TilTek?), using same >>>> pigtail and radio. With the clients on this sector, the AP side is the >>>> same, but the CPE receive side seems to have suffered with this larger >>>> antenna. Nothing was changed other then the antenna, aimed to the exact >>>> same degree, tilted the same percentage of vertical tilt, and so forth. >>>> I'm thinking the antenna isn't very good, or it's VSWR is too low and >>>> I'm getting some power reflected from the antenna. Anybody have >>>> experience with this antenna, or these scenarios? >>>> >>>> I expected this bigger, more expensive antenna to gain all across the >>>> board. >>>> >>>> Regards >>>> Michael Baird >>>> >>>> >>>> ---------------------------------------------------------------------------- >>>> ---- >>>> 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/ >>>> >>>> >>>> >>> -------------------------------------------------------------------------------- >>> 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/ >> >> > > > > -------------------------------------------------------------------------------- > 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/
