I inherited a system with several Hyperlink 15dBi antennas on the "repeater" sites. My first thought was "yuk". After living with them for over 3 years I've been very impressed on how well they work. I tried replacing one with a Pacific Wireless OD24-12 unit with electronic downtilt, lost association with half my clients and the other half had high packet loss. I ended up putting the original omni back in. I'm all ears on explanations for these results. -RickG
On Wed, Mar 31, 2010 at 10:58 AM, Cameron Crum <cc...@dot11net.com> wrote: > Can't say how many times I posted on different lists warning about "15 > dBi" omnis. It is next to impossible to make a 15 dBi omni with any > usable elevation beamwidth at all - electrical downtilt or not. 12 dBi > is pretty much the maximum and at that you will be lucky to see anything > over a degree on the elevation pattern. Having been in the antenna > business before and with a partner who made a career out of designing > antennas, I can tell you that we would never use an omni greater than 10 > dBi for any application. > > On 3/31/2010 8:39 AM, Marlon K. Schafer wrote: >> lol >> >> Yeah, it sucks. Really the vendors that sell those configs are the ones >> that we should all avoid like the plague. Then BOTH companies would go away >> sooner than later. >> >> Anyone remember Hyperlink? They loved to sell those 1 watt amps with 15dB >> omni antennas. Those guys put more operators out of business than there are >> in business today. It's a shame. >> >> But hey, that's what these lists are for. ASK QUESTIONS!!!!! Don't know >> about everyone else here but I'd rather answer the same question twice a >> week than see a company fail due to bad advice. >> >> marlon >> >> ----- Original Message ----- >> From: "Kurt Fankhauser"<k...@wavelinc.com> >> To: "'WISPA General List'"<wireless@wispa.org> >> Sent: Tuesday, March 30, 2010 5:40 PM >> Subject: Re: [WISPA] Oh this business, tell me again why we love it?! >> >> >> >>> Marlon, >>> >>> I think people should have to take a test in order to be a WISP. Otherwise >>> you got all these pop-up idiots that know nothing about RF and setting up >>> 20db sectors with XR2's set at default power levels. This is well over >>> 50watts EIRP. >>> >>> Kurt Fankhauser >>> WAVELINC >>> P.O. Box 126 >>> Bucyrus, OH 44820 >>> 419-562-6405 >>> www.wavelinc.com >>> >>> >>> -----Original Message----- >>> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On >>> Behalf Of Marlon K. Schafer >>> Sent: Tuesday, March 30, 2010 10:51 AM >>> To: WISPA General List >>> Subject: Re: [WISPA] Oh this business, tell me again why we love it?! >>> >>> I get what you are saying Bob. But sometimes it's more about knowing WHO >>> to >>> >>> call. >>> >>> I just had a guy call with a similar problem. You all know him and I'd >>> drop >>> >>> his name but I don't want to tip off the dirt bag operator..... >>> >>> When he first called the FCC he ended up at the wrong place. They told >>> him >>> that there was nothing they could do. >>> >>> I had him call back and specifically ask for the enforcement folks NOT the >>> consumer complaint folks. >>> >>> He had pictures, spectrum analyzer, radio screen shots etc. that showed, >>> clearly, that the other guy was aiming antennas right at his. When the >>> good >>> >>> guy moved channels the bad guy moved with him, within days. He was also >>> able to get together with another local WISP who added his name to the >>> complaint. >>> >>> This did take a couple of months to work through the system but last I'd >>> heard the FCC HAD been working on this complaint. Perhaps it's far enough >>> along that the good guy can tell you a bit more. >>> >>> 1-800-call-fcc Ask for ENFORCEMENT. You need to have your documentation >>> in >>> >>> order first. >>> >>> It's true that we all have to accept interference. It's also true that we >>> can't CAUSE it maliciously. They also have a hissy fit when we go over >>> the >>> allowable power levels. >>> >>> For what it's worth, nearly all of my systems are below, often well below, >>> legal levels. They tend to work better that way anyhow. Use bigger >>> antennas not more power. Range and reliability is about SNR. You can get >>> that in two ways. More power is one. Better ears is another. Better >>> ears >>> also mean narrower beams which usually means less interference which also >>> means greater SNR which means longer ranges which means less AP's which >>> means less interference etc. etc. etc. >>> >>> laters, >>> marlon >>> >>> >>> ----- Original Message ----- >>> From: "Lakeland"<lakel...@gbcx.net> >>> To: "WISPA General List"<wireless@wispa.org> >>> Sent: Monday, March 29, 2010 12:40 PM >>> Subject: Re: [WISPA] Oh this business, tell me again why we love it?! >>> >>> >>> >>>> Marlon, >>>> >>>> You have personal contacts. That's cheating. I have contacts too and >>>> could >>>> probably get action if I needed it but I am talking the regular Wisp >>>> calling >>>> the field office. Unless you have an inside number at the field office >>>> you >>>> usually only get the recorded TV interference message. >>>> >>>> Maybe I'm just totally wrong. >>>> >>>> -B- >>>> >>>> >>>> >>>> Marlon K. Schafer writes: >>>> >>>> >>>>> Hmmmm, I've had much better luck that than Bob. >>>>> >>>>> marlon >>>>> >>>>> ----- Original Message ----- >>>>> From: "Lakeland"<lakel...@gbcx.net> >>>>> To: "WISPA General List"<wireless@wispa.org> >>>>> Sent: Saturday, March 27, 2010 7:16 PM >>>>> Subject: Re: [WISPA] Oh this business, tell me again why we love it?! >>>>> >>>>> >>>>> >>>>>> Sorry I side with Travis. >>>>>> >>>>>> I have quite a few experiences with Enforcement Bureau out of NY, >>>>>> Philly >>>>>> and >>>>>> DC and I know with the tremendous reduction of their budget and >>>>>> workforce >>>>>> they are having enough issues just trying to do FM/AM/TV inspections >>>>>> that >>>>>> they are required by law to do. >>>>>> >>>>>> There is no manpower for chasing down unlicensed operations unless they >>>>>> are >>>>>> causing interference to a licensed operation like weather radar or some >>>>>> other priority service. Forget pursuing an interference complaint >>>>>> between >>>>>> two Part 15 issues especially if any travel is involved. >>>>>> >>>>>> Thats the reality of the matter. >>>>>> >>>>>> -B- >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> Jerry Richardson writes: >>>>>> >>>>>> >>>>>>> Gotta keep bringing it up. eventually they will respond. Squeaky wheel >>>>>>> gets the grease. >>>>>>> >>>>>>> Ideally a host of documentation including letters to the offending >>>>>>> ISP, >>>>>>> previous reports to the FCC, etc will build the case. >>>>>>> >>>>>>> Gotta prove that they are operating over 36dB and that they are >>>>>>> affecting >>>>>>> other legitimate users of the band. >>>>>>> >>>>>>> -----Original Message----- >>>>>>> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] >>>>>>> On >>>>>>> Behalf Of Travis Johnson >>>>>>> Sent: Saturday, March 27, 2010 2:38 PM >>>>>>> To: wa4...@arrl.net; WISPA General List >>>>>>> Subject: Re: [WISPA] Oh this business, tell me again why we love it?! >>>>>>> >>>>>>> Negative. I know of an ISP using 5 watt amps on 2.4ghz omni antennas. >>>>>>> They have been reported several times to the FCC, and nothing happens. >>>>>>> >>>>>>> Travis >>>>>>> Microserv >>>>>>> >>>>>>> Leon D. Zetekoff wrote: >>>>>>> >>>>>>>> On 03/27/2010 03:58 PM, Jerry Richardson wrote: >>>>>>>> >>>>>>>> >>>>>>>>> Regarding the competetor, if you can prove that your competetor is >>>>>>>>> intentionally interfering with you, the FCC will actually get >>>>>>>>> involved >>>>>>>>> but it will take a long and painful paper-trail to build a strong >>>>>>>>> enough case. >>>>>>>>> >>>>>>>>> >>>>>>>>> >>>>>>>> if they are using amps, then the FCC would get involved. >>>>>>>> >>>>>>>> leon >>>>>>>> >>>>>>>> >>>>>>>> >>>>>>>> >>> ---------------------------------------------------------------------------- >>> ---- >>> >>>>>>>> WISPA Wants You! 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