Yes, I saw the spectrum analyzer from the client end as well. The past 24 hours 
of history. Not sure if it takes the client end into account when picking a 
channel. 




----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 

----- Original Message -----

From: "Josh Reynolds via Af" <[email protected]> 
To: [email protected] 
Sent: Sunday, October 19, 2014 4:03:07 PM 
Subject: Re: [AFMUG] Pmp450 vs epmp pros vs cons 


I thin k one of the biggest features there that Mimosa is working on is a drum 
they haven't even b eat that hard yet... 

They're work ing on doing the freq uency plan for you. (This is on the website, 
and in WISPAPALOOZA promo material..) 

When you have a system that is constantly performing scanning and reporting 
back to a c ontroller, you get some excellent ideas about what you can deploy 
and where. You will ge t to the point where you don't actually have to pick a 
channel anymore , as their system doesn't just know what channels you are 
using, but it knows the signal levels for the channels you aren't. 

The biggest concern I ha ve with this though, and I need to ask Larry or 
somebody, is if they are going to be collecting this info from the stations as 
well -- this is very important. 

Hearing the stations is one thing, but remember that's only around 20% or so of 
your network traffic. It's much more important that the stations have a better 
SNR to the APs than the other way around. 



Josh Reynolds, Chief Information Officer 
SPITwSPOTS, www.spitwspots.com On 10/19/2014 10:16 AM, Rory Conaway via Af 
wrote: 




No argument but I don�t think the value statement is there, especially with 
Ubiquiti and ePMP.� At the same time, 802.11ac, MU-MIMO, Beam-forming, and 
other features in next generation chipsets may change the design models we are 
now discussing.� I�m just saying�� J 
� 
Rory 
� 


From: Af [ mailto:[email protected] ] On Behalf Of Gino Villarini via Af 
Sent: Sunday, October 19, 2014 9:44 AM 
To: <[email protected]> 
Subject: Re: [AFMUG] Pmp450 vs epmp pros vs cons 
� 

Good to point 

� 

Also, to some extent, sync will help you on a environment with lots of noise 
from nonsynced operators 


Gino A. Villarini 

@gvillarini 

� 




� 


On Oct 19, 2014, at 12:27 PM, Ken Hohhof via Af < [email protected] > wrote: 
<blockquote>





I think one point Mike is missing is without the WISPs that use GPS sync 
sharing frequencies, there wouldn�t be enough spectrum for the WISPs that 
don�t. 

� 

It�s like someone disputing the value of carpooling because they drive solo 
and don�t experience traffic jams.� But is that because other people 
carpool? 

� 

You experience interference in a band with limited spectrum like 900. 2.4 or 
3.65, and survey to find who all is using the band.� Some you can coordinate 
sync with, others you can�t.� So you call up the WISPs you can sync with, 
coordinate your frequencies and timing, and let the non-sync guy have a channel 
to himself.� Which convinces the non-sync guy that the value of GPS sync is a 
myth. 

� 



� 


From: Rory Conaway via Af 

Sent: Sunday, October 19, 2014 11:03 AM 

To: [email protected] 

Subject: Re: [AFMUG] Pmp450 vs epmp pros vs cons 

� 

If you don�t have 100% cooperation with GPS sync with competitors for various 
reasons, you will have interference.�� When more beam-forming options start 
coming out, GPS might have value on the same tower, but little value since the 
trade-off with reduced throughput isn�t worth it.�� This is why I don�t 
like towers in high-density areas.� If I had 12 competitors, I�d have 
micro-cells until the equipment catches up with environment which I�m sure is 
coming. 
� 
Rory 
� 


From: Af [ mailto:[email protected] ] On Behalf Of Mike Hammett via Af 
Sent: Sunday, October 19, 2014 8:38 AM 
To: [email protected] 
Subject: Re: [AFMUG] Pmp450 vs epmp pros vs cons 
� 

You lost me, Rory... 



----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 
� 



From: "Rory Conaway via Af" < [email protected] > 
To: [email protected] 
Sent: Sunday, October 19, 2014 10:35:08 AM 
Subject: Re: [AFMUG] Pmp450 vs epmp pros vs cons 

Which then makes it not that valuable.� I think Beam-Forming has more value. 
� 
Rory 
� 


From: Af [ mailto:[email protected] ] On Behalf Of Mike Hammett via Af 
Sent: Sunday, October 19, 2014 8:29 AM 
To: [email protected] 
Subject: Re: [AFMUG] Pmp450 vs epmp pros vs cons 
� 

Half or more have the same Canopy settings. The rest are 802.11 based with some 
cooperating and some not responding to anything. 



----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 
� 



From: "Rory Conaway via Af" < [email protected] > 
To: [email protected] 
Sent: Sunday, October 19, 2014 10:13:45 AM 
Subject: Re: [AFMUG] Pmp450 vs epmp pros vs cons 
I�m assuming all 12 WISPs cooperate with each other? 
� 
Rory 
� 


From: Af [ mailto:[email protected] ] On Behalf Of Mike Hammett via Af 
Sent: Sunday, October 19, 2014 5:33 AM 
To: [email protected] 
Subject: Re: [AFMUG] Pmp450 vs epmp pros vs cons 
� 

Entirely not true spoken by a WISP that has up until this point used Mikrotik 
and Ubiquiti in rural and suburban markets with 12 WISP competitors. 



----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 
� 



From: "Mark Radabaugh via Af" < [email protected] > 
To: [email protected] 
Sent: Saturday, October 18, 2014 3:52:03 PM 
Subject: Re: [AFMUG] Pmp450 vs epmp pros vs cons 

And now your completely out of spectrum and can't deploy anything new.� I 
suppose the good part for you is nobody else can do anything given the amount 
of noise your making. 

Mark 

On 10/18/14, 1:27 PM, Josh Reynolds via Af wrote: 
<blockquote>


You just hit the nail on the head why we have never considered deploying 450 
(and similar ) in the past: 

By the time "you" (relative term) have the cashflow to pay for those sectors, 
"we" (another relative term, for people deploying UBNT or similar) have already 
thrown up 4-6 shielded sectors and at least 10 clients per. If we don' t think 
we can hit a decent sub density or at least make the site a valuable repeater, 
then we don't go there. 

Josh Reynolds, Chief Information Officer 
SPITwSPOTS, www.spitwspots.com 
On 10/18/2014 09:01 AM, Kurt Fankhauser via Af wrote: 
<blockquote>


I prefer sectors too but math doesnt always work out. I'll put the omni in to 
get the site up and once the customers are there change it to sectors. The 450 
platform is very easy to drop sectors in and have the existing clients link 
right up. I have a couple sites with existing customers i am dropping a two 
sector 450 system in with 120 segree KP antennas. cant afford any more sectors 
than that per site right now... 

Sent from my iPhone 

� 

Kurt Fankhauser 

Wavelinc Communications 

P.O. Box 126 

Bucyrus, OH 44820 

http://www.wavelinc.com 

tel. 419-562-6405 

fax. 419-617-0110 


On Oct 18, 2014, at 11:21 AM, Mike Hammett via Af < [email protected] > wrote: 
<blockquote>



I've noticed a lot of PMP operators are deploying omnis (presumably because 
they can't afford 4 APs. Give me TDMA Atheros with sectors over omnis on 
anything any day. 



----- 
Mike Hammett 
Intelligent Computing Solutions 
http://www.ics-il.com 
� 



From: "Kurt Fankhauser via Af" < [email protected] > 
To: [email protected] 
Sent: Saturday, October 18, 2014 8:38:14 AM 
Subject: Re: [AFMUG] Pmp450 vs epmp pros vs cons 

TJ, 

� 

No difference between the 3 different frequencies bands (other than NLOS range) 
as far as the product itself they are all the same animal. 2.4ghz NLOS is 
slightly better than 3.65ghhz. They all function the same and have the same 
expected throughputs per channel width. They all use the same firmware and i 
love the interface being the same across all 3. The only major difference is 
the 5ghz is V/H versus slant on the other two. That just translates to the 5ghz 
omni being ALOT smaller and lighter. There are some places that i wish the 
2.4ghz woulda been V/H because of the omni size but overall I am still very 
happy with the 2.4ghz 450. 






� 

Kurt Fankhauser 
Wavelinc Communications 
P.O. Box 126 
Bucyrus, OH 44820 
http://www.wavelinc.com 
tel. 419-562-6405 
fax. 419-617-0110 
� 

On Sat, Oct 18, 2014 at 4:57 AM, TJ Trout via Af < [email protected] > wrote: 

Kurt, 

� 

Any pros and cons on 450 between 2ghz, 3.65 and 5?� Any differences at all? 
Range vs throughput? Obviously 2ghz penetrates better, 3 is licensed and 5 has 
more spectrum but anything else? All bands are open for me 

� 

Thanks 

� 

On Fri, Oct 17, 2014 at 11:20 PM, Kurt Fankhauser via Af < [email protected] > 
wrote: 

I started the spring deploying 450 in 2.4ghz, 5ghz, and 3.65ghz and then middle 
of the summer deciding i had to"try" some ePMP because the cost was so low I 
couldn't resist.... I can say now that I am fairly certain I will probably 
stick with the 450. There are many small reasons that when I considered them 
all i came to this conclusion. Here are my reasons: 

� 

1. ePMP latency starts to go up quickly once you have more than 10 clients on 
an AP. Once you get over 20 clients the latency is pretty much 25-30 ms. 
Cambium was honest about this at the road tour and they noted if you want the 
best latency to stick with the 450. 

2. Sync between the two platforms is not there yet. If you have adjacent towers 
on the different platforms that can see each other you won't have sync. 

3. No remote spectrum analyzer for clients. This is HUGE for when the clients 
fire up their wireless camera and baby monitors and trash the whole spectrum. 

4.No burst bucket on CPE's 

5.EPMP Interface is SLOWWW. Cambium explained at the tour they were offloading 
alot of processing power to the PC you are viewing the interface with and i 
can't be taking a quad core machine up a tower to work on these radios and do 
site surveys. I am working with a Panasonic Toughbook and takes FOREVER to log 
into the EPMP radios. 

6. Fore some reason site surveys are a PITA with ePMP. Think its a combination 
of many factors here... slow interface one of them... 

7. EPMP in 5ghz DFS band has really low power output. Something like 13-14db. 
When using an omni antenna you can't get maximum legal EIRP out of the ePMP. 

8. 450 link tests and SM modulation is pretty stable and predictable. EPMP 
seems like its all over the place. I don't think I have yet seen EPMP linktest 
get full up or down outside of a lab environment. 

� 

There might be other reasons but I'm pretty tired and was heading for bed. 






� 

Kurt Fankhauser 
Wavelinc Communications 
P.O. Box 126 
Bucyrus, OH 44820 
http://www.wavelinc.com 
tel. 419-562-6405 
fax. 419-617-0110 
� 

On Fri, Oct 17, 2014 at 5:05 PM, TJ Trout via Af < [email protected] > wrote: 
I haven't been keeping real up to date on current generation ptmp offerings but 
we have a new site going up and I need to decide pretty quickly on some 
equipment. For the guys who have been using both 450 and epmp do you have any 
pros and cons ? Any reason to spend the extra money when epmp seems to have the 
same if not better performance , sync, etc? 
My gut says 450 is going to be my best long term solution but with all of the 
positive epmp feedback it's hard to justify the extra money? 
� 
� 
� 
� 


</blockquote>

� 
</blockquote>

� -- Mark Radabaugh Amplex � [email protected] � 419.837.5015 x 1021 
� 
� 
� 
</blockquote>

</blockquote>


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