Thats a great idea! Of course, you gotta have equipment that supports smaller channels. Egads, another items for my "to do list"! Thanks! -RickG
On Tue, Jun 30, 2009 at 9:57 PM, Josh Luthman<j...@imaginenetworksllc.com> wrote: > That's assuming you're using 2.4 and 20mhz channels. I feel it is > only wise to use 10 or even 5 mhz channels. > > You drop those laptops that can see the AP and think they can get > service. You cut interference in half and focus the power in half the > bandwidth (bit more coverage!). You can only use things that can use > the smaller channels. > > On 6/30/09, RickG <rgunder...@gmail.com> wrote: >> After my last comment on this about the omni, I'm hesitant to give out >> advise but here it goes anyway: >> My worst operating tower is quad-sectored. With 2.4GHz it's best to >> stick with tri-sectors since you only have 3 non-over channels. Just >> my two cents worth... >> -RickG >> >> On Tue, Jun 30, 2009 at 2:46 PM, Robert West<robert.w...@just-micro.com> >> wrote: >>> I decided to just upgrade the whole thing and install sector antennas. >>> It'll eventually go that way anyhow. This spot is the farthest out we >>> reach >>> but last week, out of nowhere, the calls started to come in from that area >>> asking about service so I guess a real upgrade is in order. I have a set >>> of >>> 2.4 sector antennas that have been sitting around unused so I guess that >>> can >>> be the home for them. The 5.8 however, any suggestions on that for >>> sector? >>> Again, going into the 600a routerboard, R5H cards. >>> >>> My 2.4ghz sector antennas are 90 degree, so we'll be using 4. If we use 1 >>> card for each sector on the 2.4, then go with 3 antennas for the 5.8 and >>> use >>> our Ubiquiti XR5 for the backhaul, that's going to fill up all 8 slots on >>> the 600a. Never been to that point before, will our 48v POE run this >>> whole >>> thing or should I just add another routerboard for the 5.8 and the >>> backhaul? >>> My head is telling me to just add the board but the wallet is running away >>> from me............ >>> >>> -----Original Message----- >>> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On >>> Behalf Of Curtis Maurand >>> Sent: Tuesday, June 30, 2009 11:14 AM >>> To: WISPA General List >>> Subject: Re: [WISPA] Antenna Performance >>> >>> >>> >>> 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.h >>> tm >>>>> >>>>> 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! 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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/ >> > > > -- > Josh Luthman > Office: 937-552-2340 > Direct: 937-552-2343 > 1100 Wayne St > Suite 1337 > Troy, OH 45373 > > "When you have eliminated the impossible, that which remains, however > improbable, must be the truth." > --- Sir Arthur Conan Doyle > > > -------------------------------------------------------------------------------- > WISPA Wants You! 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