WISP Teamwork to make signals better

This post is a huge shout out to Tasos Alexiou from RF Elements.  This story started out at WISPAPALOOZA Vegas this year.  I had a few clients who have been fighting noise issues. While working the Cambium booth we would go over the benefits of ePMP for noise mitigation.  This would naturally lead to an antenna discussion. You can’t have an antenna discussion without mentioning RF Elements and their horn design.  As with anything, clients are skeptical to things outside the conventional way of doing things.  It’s not that the client is closed minded, but change becomes a little harder when revenue and cash outlay are involved.  I am a very visual guy so I walked several of these clients over to the RF Elements booth so they could see the product and have it explained by the folks themselves.

These clients were getting it, but I could tell they were a little hesitant to make the leap.  This is where the teamwork of the story really comes into play.  Tasos could sense the same thing I was seeing, and came up with a plan.  In the shipment of their gear to Vegas, they had some extra gear.  After some negotiation, he told us to stop by after the show and he would see what he could do to get some gear in the hands of both of these clients.  After the show, I was able to send both of these clients home with some 30 and 45-degree horns.   Not only that, but these clients were able to talk about their specific situations, draw diagrams, and get a great understanding of how to get the best fit out of the equipment.

I am happy to say we have the first results from these horns.  Mohave Broadband was able to put up a 30-degree horn in an area where they were having clients with signal and interference issues. By adjusting their 90/120 sectors, which even have beamforming,  they were able to have the horn fit in their most troublesome area.  Some of the troubles were customers who could not connect on a certain frequency very well, but others could.  If the frequencies were changed the good customers became bad and vice versa.  Once the horn was in place we noticed a couple of things.

The first was customers in the 30-degree beam of the horn were able to connect at good signals and data rates. These were customers who were pointed right at the sectors before, not ones on the fringes.

Secondly, due to the nature of the horn we were able to select from more channels due to the lack of sidelobes from the horns.

Customer links on the AP.

We could go on and on how the ePMP 2000 APs with their noise filtering, and the “clean” pattern of the horn make the difference but that is not the focus of the article.  The focus is how many separate pieces of the WISP community came together to help.  From WISPA putting on the show to the willingness of Tasos and RF elements to help these customers, and the ability to sit down and draw out diagrams and antenna placement to get the best place to place antennas. For those of you who don’t attend tradeshows, this is one of the success stories with a few more to come on this blog.


MTIN Family of Sites
https://j2sw.com
https://indycolo.net
https://mtin.net
https://startawisp.info

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MTIN Family of Sites
https://indycolo.net
https://j2sw.com
https://startawisp.info

Cambium Roadshow 2018 Morning Session

Recently I attended the Cambium Roadshow 2018. Some notes.

-Epmp 3000 expected to be here in September.  4×4 Mimo product. Early marketing should be coming in the next couple of weeks.
-820C pricing is getting aggressive.
-Mikrotik Open beta Elevate is out.  Ability to elevate Mikrotik units.

Force 300
-second radio can be used as management access or a realtime spectrum analyzer
-No more java client for the analyzer
-65k packets per second
-About 10% throughput at the sector in a legacy network.  Future software updates can lessen this.
-Dynamic spectrum capability
-Future vision is to have CNMaestro be aware of spectrum. This opens up the ability to view channels and interference on a network level.

450 Product Line
-Channel sizes have increased to 30 and 40mhz
-450b radios Integrated (17dBi for $299) and high gain (24dBi for $349)
-New processor
-4.9-5.925 GHZ
-Single gigabit port
-30 volt power supply, polarity Agnostic
-450 3.65 will be SaS compliant

cnArcher
-iPhone app should be here soon.
-Ability to push configs from the App

450M
-8×8 mimo due to physical size. 12×12 or 16×16 would mean a very large product
-Integrated 90 degree sector
-Direct DC power
-SFP port
-Current SMs will connect

 


MTIN Family of web-sites
www.mtin.net
www.j2sw.com
www.indycolo.net
www.startawisp.info

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MTIN Family of Sites
https://indycolo.net
https://j2sw.com
https://startawisp.info

Ac Wave 1 vs Wave 2

There has been much discussion on the performance of going from an N Series outdoor wireless system to AC.  Not all AC is created equal.  Right now there is AC Wave 1 and AC Wave 2.  Just about all the AC stuff currently in the pipeline for outdoor wireless is wave 1.  There is wave 2 indoor gear available, but for a WISP you are interested in the outdoor gear.

So what’s the difference?
For some reading about spatial streams, channel sizes, etc. look at this article https://info.hummingbirdnetworks.com/blog/80211ac-wave-2-vs-wave-1-difference

For the WISP folks who want the Cliff Notes version here are some key differences.

-Wave 1 uses 20,40,and 80 Mhz Channels.  Wave 2 can support 80 and 160mhz channels.  The 160mhz channel would be two 80mhz channels bonded together.

-Wave 1 can do 3 spatial streams.  Wave 2 does 4. This requires an additional antenna to take advantage of wave2.  This is a hardware upgrade from wave1 to wave 2.

-Wave 2 supports MU-MIMO. The AP can talk to 4 clients individually at once.  The client must also support this, which is a hardware upgrade from wave 1 to wave 2 on both the client and the AP.

The question to ask your vendors is what is the upgrade path if you are using existing AC gear.  If you are running AC currently you are most assuredly going to have to replace your AP radios and antennas.  Will your existing clients work with the new AC wave 2 aps? An important thing to ask.

 

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MTIN Family of Sites
https://indycolo.net
https://j2sw.com
https://startawisp.info

5.8 Cambium Elevated Devices & Max EIRP

Lately, we have had a few clients run into signals becoming worse when they elevated clients to ePMP.   This is not a result of the software being bad, but it enforcing the max EIRP on the units.  This boils down to older devices compliant with original FCC grants which allowed unlimited EIRP.  The Cambium elevate recognizes the latest grant for the devices.  This grant allows for a max of 41 dBM on 5/10/20 mhz channels and 38dBM on 40mhz.

So if you have elevated some older devices from UBNT your signals may have dropped.  This is due to compliance with the latest rules for the device.   As our industry matures, becoming compliant will become more and more important.  On the UBNT units, newer firmware from UBNT also does this.

Cambium has a forum post on this. http://community.cambiumnetworks.com/t5/ePMP-Elevate/5-8-GHz-Elevated-Devices-Maximum-EIRP-in-the-United-States/m-p/73141#M475

We have some tricks of the trade we can do. Contact MTIN for how we can help.

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MTIN Family of Sites
https://indycolo.net
https://j2sw.com
https://startawisp.info

ePMP elevate webinar

Some highlights on the ePMP Elevate platform.

-Allows ePMP Elevate software to run on on non-Cambium 802.11n subscriber modules
-ePMP Elevate subscribers function as ePMP subscribers
-Solution for WISPs who have hardware deployed. Offers a migration plan.
-ePMP AP must be licensed for ePMP Elevate
-5GHZ Only
-XW and XM based Ubiquiti hardware
-17 supported models
-2.4 GHZ is in on the roadmap. No official comment on timeframe.
-cnMaestro support is available for XW hardware
-Replaces the UBNT software with a cambium interface. Looks pretty close to any other ePMP interface.
-If DFS is FCC certified on the hardware it will work on the hardware when it gets the elevate system.

screen-shot-2016-11-30-at-10-14-17-am-2

Pricing
1 Subscriber license $35
10 Subscriber License $315
You would buy multiples 10 subscriber licenses for more than 10 subs.  Locked to wired mac Address of the AP.

 

 

 

 

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MTIN Family of Sites
https://indycolo.net
https://j2sw.com
https://startawisp.info