We've been doing that for years on a couple of different links. It works
well, but I wouldn't push it beyond about 4 miles.
On Sun, Jan 19, 2020 at 10:13 PM Kurt Fankhauser <lists.wavel...@gmail.com>
wrote:
> How long are your 11ghz links that you want to get more throughput on? I
> have a couple 11ghz links that are 3-4 miles that i want to get about
> 1.4gbps on and I already have one AF11X link up and I was thinking about
> putting a AF24 link right on top of that and doing ECMP load
> balancing between the two links. I'll have the AF24 radio's set up to drop
> ethernet ports if modulation drops to 500mbps that way traffic will fully
> fail over to the 11ghz link and hopefully be able to carry the traffic for
> the 5 minutes max that the AF24 link is out.
>
> On Sun, Jan 19, 2020 at 3:30 PM Ken Hohhof <af...@kwisp.com> wrote:
>
>> Sorry, you’re right.
>>
>>
>>
>> My brain keeps getting confused by Ubiquiti’s claims of “1.2+ Gbps
>> throughput” and “greatest spectral efficiency in its class”. It’s hard to
>> compare Ubiquiti (or Mimosa) licensed band radios to all the rest. I guess
>> you can view it as “thinking outside the box” or “get back in the damn box”.
>>
>>
>>
>>
>>
>> *From:* AF <af-boun...@af.afmug.com> *On Behalf Of *Mathew Howard
>> *Sent:* Sunday, January 19, 2020 1:56 PM
>> *To:* AFMUG <af@af.afmug.com>
>> *Subject:* Re: [AFMUG] 11 ghz combiner
>>
>>
>>
>> You would need dual carrier, because I'm talking about using the single
>> core Aviat radios, to keep it as cheap as possible. An AF11 link can
>> typically do ~700M one direction (using both polarities), which is about
>> the same as each 80mhz channel on an Aviat.
>>
>>
>>
>> On Sun, Jan 19, 2020, 1:36 PM Ken Hohhof <af...@kwisp.com> wrote:
>>
>> I would also run link performance analysis on both approaches. Or at
>> least consider 2 antennas instead of splitters with the airFiber approach.
>>
>>
>>
>> If I take one of my Cambium CCDP (XPIC) links and change it to ACCP in
>> LinkPlanner, it knocks 9 dB out of the system gain. I assume due to the
>> additional loss of the splitters instead of OMTs. And with AF11X radios
>> compared to something like Aviat you are already starting out with lower
>> system gain. At least with separate antennas you don’t need the splitters.
>>
>>
>>
>> I’m also not seeing why you would need dual carrier on Aviat to match the
>> throughput of two AF11X radios, just make sure you are comparing apples to
>> apples. In other words, full duplex capacity, not aggregate. Maybe I’m
>> not familiar enough with the Ubiquiti and Aviat radios, but it seems to me
>> the appropriate cost comparison would be 2 x AF11X vs 1 x single carrier
>> Aviat.
>>
>>
>>
>>
>>
>> *From:* AF <af-boun...@af.afmug.com> *On Behalf Of *Mathew Howard
>> *Sent:* Sunday, January 19, 2020 1:08 PM
>> *To:* AnimalFarm Microwave Users Group <af@af.afmug.com>
>> *Subject:* Re: [AFMUG] 11 ghz combiner
>>
>>
>>
>> I don't see how it can be a lot cheaper. Ignoring potential differences
>> in licensing/coordination, last I checked a complete AF11 link with all the
>> parts is somewhere in the neighborhood of $3k (for the hardware only). It
>> looks to me like I can get an Aviat WTM 4100 with dual carrier enabled for
>> a bit over $7k total. I'm assuming that I'm going to be able to license
>> adjacent channels on the same polarity on most paths that I can license two
>> full AF11 links, and that's going to yield similar capacity.
>>
>> To me, it seems well worth the difference in price to get better radios
>> and not have to deal with an extra set of dishes. Granted, having two sets
>> of radios does give you a redundancy advantage, but I'd still rather have
>> better radios.
>>
>>
>>
>> On Sun, Jan 19, 2020 at 11:00 AM Matt Hoppes <
>> mattli...@rivervalleyinternet.net> wrote:
>>
>> Two 11x even with two dishes is still cheaper than an Aviat. I see the
>> Aviat being an option when we crest 1.4 gigabit. Until then my dual 11x
>> setup is much less expensive.
>>
>> > On Jan 19, 2020, at 11:15 AM, Ken Hohhof <af...@kwisp.com> wrote:
>> >
>> > Maybe we should ask what you are trying to accomplish. Is it more
>> capacity, or something else?
>> >
>> > Because if it's more capacity, you will take such a hit on price and
>> performance using 2 radios and combiners that you'd be better off with one
>> more conventional radio. You shouldn't even have to buy a dual core radio
>> to get approx. double the throughput of an AF11x. Start with the lower
>> throughput and lower system gain of the AF11X, lose I think someone said ~7
>> dB for combiners, pay for 2 radios and combiners, then need external LAG.
>> It's a Rube Goldberg if you're just trying to get ~1.5 Gbps full duplex
>> capacity, just buy one of the alternatives that people have suggested like
>> Aviat. Or if money isn't a big issue and you want to license both
>> polarizations (which I believe you need to do for the AF11X), then buy a
>> true dual core radio with an OMT and have tons of capacity for the future.
>> Either way, feel good that you're making efficient use of spectrum.
>> >
>> > If capacity isn't the objective, maybe some more info.
>> >
>> > If money is the main issue, yes the AF11X is very affordable, but not
>> if you have to use 2 of them and some outboard stuff to do what other
>> vendors can do with one radio.
>> >
>> >
>> > -----Original Message-----
>> > From: AF <af-boun...@af.afmug.com> On Behalf Of ch...@wbmfg.com
>> > Sent: Sunday, January 19, 2020 8:33 AM
>> > To: AnimalFarm Microwave Users Group <af@af.afmug.com>
>> > Subject: Re: [AFMUG] 11 ghz combiner
>> >
>> > The problem is keeping one transmitter out of the other. So you have
>> hybrid combiners and circulators. Those are the only methods I know. You
>> can get both at 11 GHz with waveguide or SMA connectors.
>> >
>> > -----Original Message-----
>> > From: Mark Radabaugh
>> > Sent: Sunday, January 19, 2020 7:06 AM
>> > To: AnimalFarm Microwave Users Group
>> > Subject: Re: [AFMUG] 11 ghz combiner
>> >
>> > This is usually done using wave guides rather than at the electrical
>> level due to the high losses that occur when trying to do it using
>> transmission
>> > lines. It’s a pretty complex piece of waveguide design - not
>> something you
>> > can cobble together. The vendors with full product lines in the
>> microwave
>> > backhaul market have these solutions already designed and available.
>> >
>> > Mark
>> >
>> >> On Jan 18, 2020, at 4:20 PM, Bill Prince <part15...@gmail.com> wrote:
>> >>
>> >> That would be a tall order. AF11 radios are two-pole already, and the
>> >> diplexers have a N connector. if you had the right frequencies; maybe,
>> >> but it is difficult for me to visualize.
>> >>
>> >> bp
>> >> <part15sbs{at}gmail{dot}com>
>> >>
>> >>> On 1/18/2020 12:23 PM, Matt Hoppes wrote:
>> >>> Does anyone know of a 10-12ghz combiner module?
>> >>>
>> >>> Example - I want to run two airFiber 11x radios on one dish.
>> >>>
>> >>
>> >> --
>> >> 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
>>
> --
> 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
