Re: [WISPA] Ubiquiti airfiber on the same tower...
I'd recommend the standard of making sure APs are on one tower and slaves are on the other. AP-AP | \ SL SL + + SL SL |\ APAP -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Paolo Di Francesco Sent: Monday, February 04, 2013 8:49 AM To: WISPA General List (wireless@wispa.org) Subject: [WISPA] Ubiquiti airfiber on the same tower... Hi All I was wondering what is your experience on Airfiber. In particular my question is if the following scenario could work or not work in your opinion/experience On tower at LocationA there are two Airfiber pointing at the same direction LocationB and LocationC, more or less. On the tower at LocationA, the two airfibers are mounted at let's say 1-2 meters distance (horizontal and vertical) and 10 degrees of difference in the 2 directions LocationB and LocationC. LocationB and LocationC are two other towers both pointing at LocationA. I am wondering if at 24Ghz I could see some interference or not , in this situaitons Thank you in advance -- Ing. Paolo Di Francesco Level7 s.r.l. unipersonale Sede operativa: Largo Montalto, 5 - 90144 Palermo C.F. e P.IVA 05940050825 Fax : +39-091-8772072 assistenza: (+39) 091-8776432 web: http://www.level7.it ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
[WISPA] Ubiquiti airfiber on the same tower...
Hi All I was wondering what is your experience on Airfiber. In particular my question is if the following scenario could work or not work in your opinion/experience On tower at LocationA there are two Airfiber pointing at the same direction LocationB and LocationC, more or less. On the tower at LocationA, the two airfibers are mounted at let's say 1-2 meters distance (horizontal and vertical) and 10 degrees of difference in the 2 directions LocationB and LocationC. LocationB and LocationC are two other towers both pointing at LocationA. I am wondering if at 24Ghz I could see some interference or not , in this situaitons Thank you in advance -- Ing. Paolo Di Francesco Level7 s.r.l. unipersonale Sede operativa: Largo Montalto, 5 - 90144 Palermo C.F. e P.IVA 05940050825 Fax : +39-091-8772072 assistenza: (+39) 091-8776432 web: http://www.level7.it ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Ubiquiti airfiber on the same tower...
I would expect that her would be some side lobe interference. If they were more like 40 Degrees then you would probably be fine. But 11 is really close. What Kind of distances from A to B and A to C. The closer the better, the further its going to get more tricky. Steve Barnes General Manager PCS-WIN / RC-WiFi -Original Message- From: wireless-boun...@wispa.org [mailto:wireless-boun...@wispa.org] On Behalf Of Paolo Di Francesco Sent: Monday, February 04, 2013 8:49 AM To: WISPA General List (wireless@wispa.org) Subject: [WISPA] Ubiquiti airfiber on the same tower... Hi All I was wondering what is your experience on Airfiber. In particular my question is if the following scenario could work or not work in your opinion/experience On tower at LocationA there are two Airfiber pointing at the same direction LocationB and LocationC, more or less. On the tower at LocationA, the two airfibers are mounted at let's say 1-2 meters distance (horizontal and vertical) and 10 degrees of difference in the 2 directions LocationB and LocationC. LocationB and LocationC are two other towers both pointing at LocationA. I am wondering if at 24Ghz I could see some interference or not , in this situaitons Thank you in advance -- Ing. Paolo Di Francesco Level7 s.r.l. unipersonale Sede operativa: Largo Montalto, 5 - 90144 Palermo C.F. e P.IVA 05940050825 Fax : +39-091-8772072 assistenza: (+39) 091-8776432 web: http://www.level7.it ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Ubiquiti airfiber on the same tower...
Presently doing something like this may be a challenge. Theoretically you my be able to get way with it ... if You GPS Sync the radios. Use the one channel on each of the radios (i.e./ run them half-duplex) and depending on your distance, get more than 2 m of separation... Doing something like this could be easier if and when UBNT comes out with firmware that can allow smaller channel size. If you have to do something like this TODAY.. you might consider speaking with Trango about their new 24GHz radios. They will do 1024QAM, and as such more efficient with spectrum, and can have smaller channel sizes. Of-course, channel size will affect throughput.. and the Trango Radios are going to be a bit more expensive. Faisal Imtiaz Snappy Internet Telecom 7266 SW 48 Street Miami, Fl 33155 Tel: 305 663 5518 x 232 Helpdesk: 305 663 5518 option 2 Email: supp...@snappydsl.net On 2/4/2013 8:48 AM, Paolo Di Francesco wrote: Hi All I was wondering what is your experience on Airfiber. In particular my question is if the following scenario could work or not work in your opinion/experience On tower at LocationA there are two Airfiber pointing at the same direction LocationB and LocationC, more or less. On the tower at LocationA, the two airfibers are mounted at let's say 1-2 meters distance (horizontal and vertical) and 10 degrees of difference in the 2 directions LocationB and LocationC. LocationB and LocationC are two other towers both pointing at LocationA. I am wondering if at 24Ghz I could see some interference or not , in this situaitons Thank you in advance ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Ubiquiti airfiber on the same tower...
This really shouldn't be an issue provided you do proper frequency planning. Matt Hoppes Director of Information Technology Indigo Wireless +1 (570) 723-7312 On 2/4/13 8:48 AM, Paolo Di Francesco wrote: Hi All I was wondering what is your experience on Airfiber. In particular my question is if the following scenario could work or not work in your opinion/experience On tower at LocationA there are two Airfiber pointing at the same direction LocationB and LocationC, more or less. On the tower at LocationA, the two airfibers are mounted at let's say 1-2 meters distance (horizontal and vertical) and 10 degrees of difference in the 2 directions LocationB and LocationC. LocationB and LocationC are two other towers both pointing at LocationA. I am wondering if at 24Ghz I could see some interference or not , in this situaitons Thank you in advance ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Ubiquiti airfiber on the same tower...
On 2/4/2013 8:48 AM, Paolo Di Francesco wrote: Hi All I was wondering what is your experience on Airfiber. In particular my question is if the following scenario could work or not work in your opinion/experience On tower at LocationA there are two Airfiber pointing at the same direction LocationB and LocationC, more or less. On the tower at LocationA, the two airfibers are mounted at let's say 1-2 meters distance (horizontal and vertical) and 10 degrees of difference in the 2 directions LocationB and LocationC. LocationB and LocationC are two other towers both pointing at LocationA. I am wondering if at 24Ghz I could see some interference or not , in this situaitons No examples to cite yet, but it should be fine to have them both on the tower, so long as they're not using the same frequency. AirFiber uses solid dishes with a very tight beam; the signal should be way down at 10 degrees and a meter's spacing. And the transmitted power output is very low. The only reason I don't think they'd be good on the same frequency is that a bird or raindrops might reflect some signal back towards the tower. -- Fred R. Goldstein fred at interisle.net Interisle Consulting Group +1 617 795 2701 ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Ubiquiti airfiber on the same tower...
Matt, How would you suggest that the Frequency planning to be done .. when the current choices are only two channels ? Faisal Imtiaz Snappy Internet Telecom 7266 SW 48 Street Miami, Fl 33155 Tel: 305 663 5518 x 232 Helpdesk: 305 663 5518 option 2 Email: supp...@snappydsl.net On 2/4/2013 9:52 AM, Matt Hoppes wrote: This really shouldn't be an issue provided you do proper frequency planning. Matt Hoppes Director of Information Technology Indigo Wireless +1 (570) 723-7312 On 2/4/13 8:48 AM, Paolo Di Francesco wrote: Hi All I was wondering what is your experience on Airfiber. In particular my question is if the following scenario could work or not work in your opinion/experience On tower at LocationA there are two Airfiber pointing at the same direction LocationB and LocationC, more or less. On the tower at LocationA, the two airfibers are mounted at let's say 1-2 meters distance (horizontal and vertical) and 10 degrees of difference in the 2 directions LocationB and LocationC. LocationB and LocationC are two other towers both pointing at LocationA. I am wondering if at 24Ghz I could see some interference or not , in this situaitons Thank you in advance ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Ubiquiti airfiber on the same tower...
Depends on how much throughput is needed. You could run half-duplex and use two different frequencies (almost guaranteed to work), or use the same frequencies and just make sure both sides are transmitting and rx on the same frequency. On 2/4/13 10:12 AM, Faisal Imtiaz wrote: Matt, How would you suggest that the Frequency planning to be done .. when the current choices are only two channels ? Faisal Imtiaz Snappy Internet Telecom 7266 SW 48 Street Miami, Fl 33155 Tel: 305 663 5518 x 232 Helpdesk: 305 663 5518 option 2 Email: supp...@snappydsl.net On 2/4/2013 9:52 AM, Matt Hoppes wrote: This really shouldn't be an issue provided you do proper frequency planning. Matt Hoppes Director of Information Technology Indigo Wireless +1 (570) 723-7312 On 2/4/13 8:48 AM, Paolo Di Francesco wrote: Hi All I was wondering what is your experience on Airfiber. In particular my question is if the following scenario could work or not work in your opinion/experience On tower at LocationA there are two Airfiber pointing at the same direction LocationB and LocationC, more or less. On the tower at LocationA, the two airfibers are mounted at let's say 1-2 meters distance (horizontal and vertical) and 10 degrees of difference in the 2 directions LocationB and LocationC. LocationB and LocationC are two other towers both pointing at LocationA. I am wondering if at 24Ghz I could see some interference or not , in this situaitons Thank you in advance ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Ubiquiti airfiber on the same tower...
On Feb 4, 2013, at 6:49 AM, Faisal Imtiaz fai...@snappydsl.net wrote: If you have to do something like this TODAY.. you might consider speaking with Trango about their new 24GHz radios. They will do 1024QAM, and as such more efficient with spectrum, and can have smaller channel sizes. Yes Faisal, we could certainly do this with adjustable channel sizes and polarity. On a 50 MHz channel one could still get 400-600 Mbps full duplex. This would allow one to use 50 MHz for one site and 50 MHz for another. Alternatively, when using our 2' antennas, I believe one can reuse the same frequency about every 15 degrees, swapping polarity. I'd have to check the pattern on the 3' dishes, but they would probably be able to support frequency reuse at 11 degrees. -- Scott Chester, kf6jxt Sr. Network Engineer Trango Systems, Inc. 858.391.0010 x236 sc...@trangosys.com www.trangosys.com 858.248.4004 direct 888.281.9220 toll freesupport.trangosys.com Innovating Microwave Backhaul™ Upcoming Events trangosys.com/events Jan 29-Feb 1Animal Farm 7 Salt Lake City Feb 25 Training Workshop Orlando March 13-14 IWCELas Vegas April 1 Training Workshop Cincinnati, OH April 2-4 WISP AmericaCovington, KY ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
Re: [WISPA] Ubiquiti airfiber on the same tower...
You can also alternate polarities whereas UBNT cannot. - Mike Hammett Intelligent Computing Solutions http://www.ics-il.com - Original Message - From: Scott Chester sc...@trangosys.com To: fai...@snappydsl.net, WISPA General List wireless@wispa.org Sent: Monday, February 4, 2013 10:27:39 AM Subject: Re: [WISPA] Ubiquiti airfiber on the same tower... On Feb 4, 2013, at 6:49 AM, Faisal Imtiaz fai...@snappydsl.net wrote: If you have to do something like this TODAY.. you might consider speaking with Trango about their new 24GHz radios. They will do 1024QAM, and as such more efficient with spectrum, and can have smaller channel sizes. Yes Faisal, we could certainly do this with adjustable channel sizes and polarity. On a 50 MHz channel one could still get 400-600 Mbps full duplex. This would allow one to use 50 MHz for one site and 50 MHz for another. Alternatively, when using our 2' antennas, I believe one can reuse the same frequency about every 15 degrees, swapping polarity. I'd have to check the pattern on the 3' dishes, but they would probably be able to support frequency reuse at 11 degrees. -- Scott Chester, kf6jxt Sr. Network Engineer Trango Systems, Inc. 858.391.0010 x236 sc...@trangosys.com www.trangosys.com 858.248.4004 direct 888.281.9220 toll freesupport.trangosys.com Innovating Microwave Backhaul™ Upcoming Events trangosys.com/events Jan 29-Feb 1Animal Farm 7 Salt Lake City Feb 25 Training Workshop Orlando March 13-14 IWCELas Vegas April 1 Training Workshop Cincinnati, OH April 2-4 WISP AmericaCovington, KY ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless ___ Wireless mailing list Wireless@wispa.org http://lists.wispa.org/mailman/listinfo/wireless
