Re: [AFMUG] Mimo Antenna Magic
Nate, Don't go there. Make both antennas either V/H or Slant. Chuck On Thu, Jul 5, 2018 at 7:11 PM Chris Fabien wrote: > We recently ran into this exact situation with AF5X-HD radios. 3ft dishes > with H/V on one end and 45 Slant on the other end. I tried to switch the > H/V antenna to Slant, it looked at first glance like it had provision to do > both but the bolt holes didn't actually line up. However I did monitor > signal as I rotated the feed from H/V to Slant, there was no noticable > difference in signal or air rates. > > On Thu, Jul 5, 2018 at 7:56 PM, Mathew Howard > wrote: > >> It seems to me that you're always better off matching them, unless you >> have a good reason not to (like, say, if both antennas were already on the >> towers). >> >> On Thu, Jul 5, 2018 at 4:45 PM, wrote: >> >>> I agree, just match them and then it doesn’t matter if the radio does >>> the fancy stuff or not. >>> >>> *From:* Mathew Howard >>> *Sent:* Thursday, July 5, 2018 3:29 PM >>> *To:* AnimalFarm Microwave Users Group >>> *Subject:* Re: [AFMUG] Mimo Antenna Magic >>> >>> Yeah, that works with any wifi based radio, and Canopy, but I don't know >>> that it works with airFiber... it seems to me that I tried it once, and it >>> work very badly, but things could've changed since then. Why don't you just >>> use a V/H dish for the new one? If you want to use the 23dbi airfiber dish, >>> UBNT doesn't have a V/H equivalent, but there are plenty of other antennas >>> that will do the job fine. >>> >>> On Thu, Jul 5, 2018 at 11:39 AM, wrote: >>> >>>> I wouldn't say there is no signal loss, but the white paper I read >>>> indicated that the circuit is able to extract information from both >>>> antennas and combine it in such a way that the SNR does not suffer. >>>> >>>> -Original Message- From: Nate Burke >>>> Sent: Thursday, July 5, 2018 10:32 AM >>>> To: Animal Farm >>>> Subject: [AFMUG] Mimo Antenna Magic >>>> >>>> >>>> Do I remember reading somewhere (possibly on this list) that because of >>>> the way that MIMO Works, you can have a 45 slant antenna on one end and >>>> a V/H antenna on the other end and there is no signal loss? I want to >>>> upgrade a Link; Rocket with a 2' dish (V/H) to Powerbridge, to a set of >>>> AFx radios 2'(V/H) to AFx antenna. I can't easily change the 2' dish to >>>> dual slant without replacing it, since it's not a UBNT dish, but the AFx >>>> dish on the other end will be dual slant. Would that work? >>>> >>>> >>>> >>>> -- >>>> AF mailing list >>>> AF@af.afmug.com >>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>>> >>>> -- >>>> AF mailing list >>>> AF@af.afmug.com >>>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>>> >>> >>> >>> -- >>> -- >>> AF mailing list >>> AF@af.afmug.com >>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>> >>> >>> -- >>> AF mailing list >>> AF@af.afmug.com >>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>> >>> >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
Re: [AFMUG] Mimo Antenna Magic
We recently ran into this exact situation with AF5X-HD radios. 3ft dishes with H/V on one end and 45 Slant on the other end. I tried to switch the H/V antenna to Slant, it looked at first glance like it had provision to do both but the bolt holes didn't actually line up. However I did monitor signal as I rotated the feed from H/V to Slant, there was no noticable difference in signal or air rates. On Thu, Jul 5, 2018 at 7:56 PM, Mathew Howard wrote: > It seems to me that you're always better off matching them, unless you > have a good reason not to (like, say, if both antennas were already on the > towers). > > On Thu, Jul 5, 2018 at 4:45 PM, wrote: > >> I agree, just match them and then it doesn’t matter if the radio does the >> fancy stuff or not. >> >> *From:* Mathew Howard >> *Sent:* Thursday, July 5, 2018 3:29 PM >> *To:* AnimalFarm Microwave Users Group >> *Subject:* Re: [AFMUG] Mimo Antenna Magic >> >> Yeah, that works with any wifi based radio, and Canopy, but I don't know >> that it works with airFiber... it seems to me that I tried it once, and it >> work very badly, but things could've changed since then. Why don't you just >> use a V/H dish for the new one? If you want to use the 23dbi airfiber dish, >> UBNT doesn't have a V/H equivalent, but there are plenty of other antennas >> that will do the job fine. >> >> On Thu, Jul 5, 2018 at 11:39 AM, wrote: >> >>> I wouldn't say there is no signal loss, but the white paper I read >>> indicated that the circuit is able to extract information from both >>> antennas and combine it in such a way that the SNR does not suffer. >>> >>> -Original Message- From: Nate Burke >>> Sent: Thursday, July 5, 2018 10:32 AM >>> To: Animal Farm >>> Subject: [AFMUG] Mimo Antenna Magic >>> >>> >>> Do I remember reading somewhere (possibly on this list) that because of >>> the way that MIMO Works, you can have a 45 slant antenna on one end and >>> a V/H antenna on the other end and there is no signal loss? I want to >>> upgrade a Link; Rocket with a 2' dish (V/H) to Powerbridge, to a set of >>> AFx radios 2'(V/H) to AFx antenna. I can't easily change the 2' dish to >>> dual slant without replacing it, since it's not a UBNT dish, but the AFx >>> dish on the other end will be dual slant. Would that work? >>> >>> >>> >>> -- >>> AF mailing list >>> AF@af.afmug.com >>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>> >>> -- >>> AF mailing list >>> AF@af.afmug.com >>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>> >> >> >> -- >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
Re: [AFMUG] Mimo Antenna Magic
It seems to me that you're always better off matching them, unless you have a good reason not to (like, say, if both antennas were already on the towers). On Thu, Jul 5, 2018 at 4:45 PM, wrote: > I agree, just match them and then it doesn’t matter if the radio does the > fancy stuff or not. > > *From:* Mathew Howard > *Sent:* Thursday, July 5, 2018 3:29 PM > *To:* AnimalFarm Microwave Users Group > *Subject:* Re: [AFMUG] Mimo Antenna Magic > > Yeah, that works with any wifi based radio, and Canopy, but I don't know > that it works with airFiber... it seems to me that I tried it once, and it > work very badly, but things could've changed since then. Why don't you just > use a V/H dish for the new one? If you want to use the 23dbi airfiber dish, > UBNT doesn't have a V/H equivalent, but there are plenty of other antennas > that will do the job fine. > > On Thu, Jul 5, 2018 at 11:39 AM, wrote: > >> I wouldn't say there is no signal loss, but the white paper I read >> indicated that the circuit is able to extract information from both >> antennas and combine it in such a way that the SNR does not suffer. >> >> -Original Message- From: Nate Burke >> Sent: Thursday, July 5, 2018 10:32 AM >> To: Animal Farm >> Subject: [AFMUG] Mimo Antenna Magic >> >> >> Do I remember reading somewhere (possibly on this list) that because of >> the way that MIMO Works, you can have a 45 slant antenna on one end and >> a V/H antenna on the other end and there is no signal loss? I want to >> upgrade a Link; Rocket with a 2' dish (V/H) to Powerbridge, to a set of >> AFx radios 2'(V/H) to AFx antenna. I can't easily change the 2' dish to >> dual slant without replacing it, since it's not a UBNT dish, but the AFx >> dish on the other end will be dual slant. Would that work? >> >> >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > > > -- > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
Re: [AFMUG] Mimo Antenna Magic
The Canopy 450 platform definitely is able to do it. I've been told that by people from Cambium who would know, and tested it myself. It may not have always had that feature, but it is there in the newer firmware. On Thu, Jul 5, 2018 at 4:38 PM, Colin Stanners wrote: > IIRC the Canopy 450 platform does not do the phase combining/differencing > that allows to go from -+90deg to -+45deg antennas without > signal/discrimination loss, as we did such a test on 900mhz 450I platform > and saw half the speed when one end was rotated 45deg. > > On Thu, Jul 5, 2018 at 4:29 PM, Mathew Howard > wrote: > >> Yeah, that works with any wifi based radio, and Canopy, but I don't know >> that it works with airFiber... it seems to me that I tried it once, and it >> work very badly, but things could've changed since then. Why don't you just >> use a V/H dish for the new one? If you want to use the 23dbi airfiber dish, >> UBNT doesn't have a V/H equivalent, but there are plenty of other antennas >> that will do the job fine. >> >> On Thu, Jul 5, 2018 at 11:39 AM, wrote: >> >>> I wouldn't say there is no signal loss, but the white paper I read >>> indicated that the circuit is able to extract information from both >>> antennas and combine it in such a way that the SNR does not suffer. >>> >>> -Original Message- From: Nate Burke >>> Sent: Thursday, July 5, 2018 10:32 AM >>> To: Animal Farm >>> Subject: [AFMUG] Mimo Antenna Magic >>> >>> >>> Do I remember reading somewhere (possibly on this list) that because of >>> the way that MIMO Works, you can have a 45 slant antenna on one end and >>> a V/H antenna on the other end and there is no signal loss? I want to >>> upgrade a Link; Rocket with a 2' dish (V/H) to Powerbridge, to a set of >>> AFx radios 2'(V/H) to AFx antenna. I can't easily change the 2' dish to >>> dual slant without replacing it, since it's not a UBNT dish, but the AFx >>> dish on the other end will be dual slant. Would that work? >>> >>> >>> >>> -- >>> AF mailing list >>> AF@af.afmug.com >>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>> >>> -- >>> AF mailing list >>> AF@af.afmug.com >>> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >>> >> >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
Re: [AFMUG] Mimo Antenna Magic
I agree, just match them and then it doesn’t matter if the radio does the fancy stuff or not. From: Mathew Howard Sent: Thursday, July 5, 2018 3:29 PM To: AnimalFarm Microwave Users Group Subject: Re: [AFMUG] Mimo Antenna Magic Yeah, that works with any wifi based radio, and Canopy, but I don't know that it works with airFiber... it seems to me that I tried it once, and it work very badly, but things could've changed since then. Why don't you just use a V/H dish for the new one? If you want to use the 23dbi airfiber dish, UBNT doesn't have a V/H equivalent, but there are plenty of other antennas that will do the job fine. On Thu, Jul 5, 2018 at 11:39 AM, wrote: I wouldn't say there is no signal loss, but the white paper I read indicated that the circuit is able to extract information from both antennas and combine it in such a way that the SNR does not suffer. -Original Message- From: Nate Burke Sent: Thursday, July 5, 2018 10:32 AM To: Animal Farm Subject: [AFMUG] Mimo Antenna Magic Do I remember reading somewhere (possibly on this list) that because of the way that MIMO Works, you can have a 45 slant antenna on one end and a V/H antenna on the other end and there is no signal loss? I want to upgrade a Link; Rocket with a 2' dish (V/H) to Powerbridge, to a set of AFx radios 2'(V/H) to AFx antenna. I can't easily change the 2' dish to dual slant without replacing it, since it's not a UBNT dish, but the AFx dish on the other end will be dual slant. Would that work? -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
Re: [AFMUG] Mimo Antenna Magic
IIRC the Canopy 450 platform does not do the phase combining/differencing that allows to go from -+90deg to -+45deg antennas without signal/discrimination loss, as we did such a test on 900mhz 450I platform and saw half the speed when one end was rotated 45deg. On Thu, Jul 5, 2018 at 4:29 PM, Mathew Howard wrote: > Yeah, that works with any wifi based radio, and Canopy, but I don't know > that it works with airFiber... it seems to me that I tried it once, and it > work very badly, but things could've changed since then. Why don't you just > use a V/H dish for the new one? If you want to use the 23dbi airfiber dish, > UBNT doesn't have a V/H equivalent, but there are plenty of other antennas > that will do the job fine. > > On Thu, Jul 5, 2018 at 11:39 AM, wrote: > >> I wouldn't say there is no signal loss, but the white paper I read >> indicated that the circuit is able to extract information from both >> antennas and combine it in such a way that the SNR does not suffer. >> >> -Original Message- From: Nate Burke >> Sent: Thursday, July 5, 2018 10:32 AM >> To: Animal Farm >> Subject: [AFMUG] Mimo Antenna Magic >> >> >> Do I remember reading somewhere (possibly on this list) that because of >> the way that MIMO Works, you can have a 45 slant antenna on one end and >> a V/H antenna on the other end and there is no signal loss? I want to >> upgrade a Link; Rocket with a 2' dish (V/H) to Powerbridge, to a set of >> AFx radios 2'(V/H) to AFx antenna. I can't easily change the 2' dish to >> dual slant without replacing it, since it's not a UBNT dish, but the AFx >> dish on the other end will be dual slant. Would that work? >> >> >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> >> -- >> AF mailing list >> AF@af.afmug.com >> http://af.afmug.com/mailman/listinfo/af_af.afmug.com >> > > > -- > AF mailing list > AF@af.afmug.com > http://af.afmug.com/mailman/listinfo/af_af.afmug.com > > -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
Re: [AFMUG] Mimo Antenna Magic
I wouldn't say there is no signal loss, but the white paper I read indicated that the circuit is able to extract information from both antennas and combine it in such a way that the SNR does not suffer. -Original Message- From: Nate Burke Sent: Thursday, July 5, 2018 10:32 AM To: Animal Farm Subject: [AFMUG] Mimo Antenna Magic Do I remember reading somewhere (possibly on this list) that because of the way that MIMO Works, you can have a 45 slant antenna on one end and a V/H antenna on the other end and there is no signal loss? I want to upgrade a Link; Rocket with a 2' dish (V/H) to Powerbridge, to a set of AFx radios 2'(V/H) to AFx antenna. I can't easily change the 2' dish to dual slant without replacing it, since it's not a UBNT dish, but the AFx dish on the other end will be dual slant. Would that work? -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com -- AF mailing list AF@af.afmug.com http://af.afmug.com/mailman/listinfo/af_af.afmug.com
