I would expect to find it on higher end radios... Redline, Orthogon, etc.
----- Mike Hammett Intelligent Computing Solutions http://www.ics-il.com -------------------------------------------------- From: "Jerry Richardson" <jrichard...@aircloud.com> Sent: Saturday, October 31, 2009 2:30 PM To: "WISPA General List" <wireless@wispa.org> Subject: Re: [WISPA] Backhaul Questions > OK I get it - make it up on the Rx side. > > So we need to find the elusive wooly-haired negative db DFS compliant > radio. Who makes such an animal? > > Jerry > > -----Original Message----- > From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On > Behalf Of Mike Hammett > Sent: Saturday, October 31, 2009 12:27 PM > To: WISPA General List > Subject: Re: [WISPA] Backhaul Questions > > A 44 dB antenna (yes, they make them). Some radios can be set to negative > dB, so if a radio could be set as far as -14 and was certified with it... > > > ----- > Mike Hammett > Intelligent Computing Solutions > http://www.ics-il.com > > > > -------------------------------------------------- > From: "Jerry Richardson" <jrichard...@aircloud.com> > Sent: Saturday, October 31, 2009 1:52 PM > To: "WISPA General List" <wireless@wispa.org> > Subject: Re: [WISPA] Backhaul Questions > >> 40 miles @ 5.4? >> >> How is that possible with a 30dB EIRP max limit? Sure you could use a >> 36dB >> dish but I can't see how you can turn the power down enough to stay in >> compliance. >> >> Jerry >> >> -----Original Message----- >> From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On >> Behalf Of Mike Hammett >> Sent: Saturday, October 31, 2009 11:45 AM >> To: WISPA General List >> Subject: Re: [WISPA] Backhaul Questions >> >> Well, depending on what the radio was certified with, you could >> theoretically go 40 miles in 5.4 GHz. I'm not sure I'd put those >> antennas >> on a Rohn 25, though. :-p >> >> MT 20 MHz can go 35 megs or so, depending on board HP and RF conditions. >> >> >> ----- >> Mike Hammett >> Intelligent Computing Solutions >> http://www.ics-il.com >> >> >> >> -------------------------------------------------- >> From: "Eric Rogers" <ecrog...@precisionds.com> >> Sent: Saturday, October 31, 2009 8:30 AM >> To: "WISPA General List" <wireless@wispa.org> >> Subject: [WISPA] Backhaul Questions >> >>> Ok guys...Looking for both Mikrotik experience and others. We currently >>> have a Mikrotik backhaul between each of our towers using NStreme and we >>> have been extremely happy with the performance. We recently upgraded a >>> tower because we were hitting 15M or so during peak times and was afraid >>> it couldn't handle much more. We upgraded that backhaul to a Motorola >>> PTP for future capacity. >>> >>> >>> >>> The questions: >>> >>> >>> >>> MT Gurus: >>> >>> Each backhaul ranges in distance, each ranges from 3 miles (3 backhauls) >>> and the rest are about 12 miles (5 backhauls). Since we have been using >>> Mikrotik, I have reliably seen up to 10 Meg, and I am afraid 15 Meg is >>> pushing the envelope on a 20 MHz channel. >>> >>> >>> >>> How much capacity can I reliably push on a 20 MHz channel using NStreme? >>> >>> >>> >>> Other Gurus: >>> >>> I understand the following are loaded questions, but budget is around >>> $1000-3000 range and the capacity needs to be around the 60Meg mark (30 >>> each way or without a defined 1:1 guarantee, capability to flex and be >>> able to push 30M each way). >>> >>> >>> >>> If I start upgrading to larger backhauls on busy links, what type of >>> equipment should I look at? >>> >>> What can support VoIP? >>> >>> Anything that GPS times for frequency reuse? >>> >>> Anything work in the 5.4GHz range at a 12 mile distance? >>> >>> >>> >>> Eric Rogers >>> >>> Precision Data Solutions, LLC >>> >>> (317) 831-3000 x200 >>> >>> >>> >>> >>> >>> -------------------------------------------------------------------------------- >>> 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/
