Yes I agree ... Nice piece of advise.
From: Jerry Richardson Sent: Thursday, July 14, 2011 8:28 PM To: WISPA General List Subject: Re: [WISPA] PtP Flat Panel and MiMo Dish Antennas Yes but not necessarily for more EIRP. At 5.8GHz a 23dB panel antenna is ~10deg where a 30dB 2' dish is ~5deg. Since you mentioned you are in a high noise environment, the narrower beamwidth would be preferred. The benefit is that from the Tx side, you are minimizing the amount of spectrum pollution by minimizing the beamwidth and increasing power density. At the Rx side the antenna sees less sky and as such sees less noise increasing your overall link S/N. Depending on the direction of other tranmitters this can mean the differnece between a link that works and link that fails (think cupping your hand behind your ear to hear in a crowded room). A part of antenna selection that many don't consider is spectrum conservation. The goal is to try to achieve the desired link performance while using as little EIRP as possible and minimizing overspray. The less noise you put into the spectrum, the better things will be for you since your competetors won't need to turn up their radios to hear over yours. If you can manage to put up a link in a way that the other guys doesn't even know you are there, you win. If you cause him interference and he turns up his power, or worse moves channels you lose. - Jerry From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Jawad A Hai Sent: Thursday, July 14, 2011 10:03 AM To: WISPA General List Subject: Re: [WISPA] PtP Flat Panel and MiMo Dish Antennas Too much antenna ?? you mean bigger antenna gain ?? From: Jerry Richardson Sent: Thursday, July 14, 2011 7:59 PM To: WISPA General List Subject: Re: [WISPA] PtP Flat Panel and MiMo Dish Antennas In my opinion it's better to have too much antenna and turn the Tx power down so that I can get narrower beamwidths. The narrower beamwidths make a big difference in a noisy environments. - Jerry From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Jawad A Hai Sent: Wednesday, July 13, 2011 11:26 PM To: WISPA General List Subject: Re: [WISPA] PtP Flat Panel and MiMo Dish Antennas PtP I will go for short distances anything under 10 KM. Above that I will go for dish. From: Josh Luthman Sent: Thursday, July 14, 2011 5:25 AM To: WISPA General List Subject: Re: [WISPA] PtP Flat Panel and MiMo Dish Antennas Just noticed the subject was ptp. What kind of distances? Panels are not a great choice a lot of the time. On Jul 13, 2011 10:23 PM, "RickG" <rgunder...@gmail.com> wrote: > +1 > > On Wed, Jul 13, 2011 at 3:20 PM, Josh Luthman > <j...@imaginenetworksllc.com>wrote: > >> I like ARC Wireless, been happy with them. Never heard of Lanbowan or >> Jirous. >> >> Josh Luthman >> Office: 937-552-2340 >> Direct: 937-552-2343 >> 1100 Wayne St >> Suite 1337 >> Troy, OH 45373 >> >> >> On Wed, Jul 13, 2011 at 3:15 PM, Jawad A Hai <ahja...@hotmail.com> wrote: >> >>> ** >>> Hello, >>> >>> I have posted below in several forums without success, I will appreciate >>> if you some body can advise me. >>> >>> Hi, >>> This is my first post in the forum.( have posted in mikrotik and ddwrt >>> without any luck ) >>> I wanted to know what antennas users/Pros use for PtP needs.(Apart from >>> UBNT) >>> Both Flat Panel and MiMO dish as well as Panel. >>> i was looking at different companies like Lanbowan, Jirous, ARCWireless. >>> Lanbowan has 27 dbi Flat Panel, which others are not offering. >>> ARC has got good reviews on mikrotik forum but jirous has got best port to >>> port isolation(MIMO). >>> Can you all please share your thoughts on antennas. Cuz a good Radio is >>> nothing without a good antenna. >>> My requirement is to have a good PtP links distance from 10-50 KMs range >>> in very crowded environments. >>> I have been trying different brands with different results and its >>> difficult to test the brands in live environments, just thinking to take an >>> advise here on the forum and buy the same and test it. Its not about just >>> one link or two, i needed some permanent vendor. >>> >>> Thank YOu >>> >>> >>> >>> >>> -------------------------------------------------------------------------------- >>> 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/ >> > > > > -- > -RickG -------------------------------------------------------------------------------- -------------------------------------------------------------------------------- WISPA Wants You! 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