As I understand it, they told people you couldn't use frequency reuse on the 
integrated product. 




----- 
Mike Hammett 
Intelligent Computing Solutions 

Midwest Internet Exchange 

The Brothers WISP 




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

From: "Steve Jones" <[email protected]> 
To: [email protected] 
Sent: Friday, May 5, 2017 10:54:39 PM 
Subject: Re: [AFMUG] RF attenuators - Integrated 450i Sector 



do I read this correct, cambium shipped a product that didn't meet their own 
spec? 
are they making right, as in shipping replacements at no cost? 
not being a dick, their reuse has always been phenomenal, even though they to 
this day refuse to admit the Motorola 320 doesn't sync for ABAB 




On Fri, May 5, 2017 at 4:00 PM, George Skorup < [email protected] > 
wrote: 



Slide didn't come though. Picture the new ePMP 2000 sector antenna with a 450i 
AP turned backwards and mounted directly on the back of the sector. It's hawt. 
I want 3GHz too, Matt! 


On 5/5/2017 9:42 AM, Matt Mangriotis wrote: 

<blockquote>


I want to make sure everyone has the correct information on this topic. 

Darin - It was true that when it was first launched, and we had the 90 degree 
Mars sector antenna, the front-to-back of that antenna was not good enough to 
do frequency re-use. 

However, the current shipping integrated Access Points (part numbers ending in 
“B”, e.g. C050045A006B) have a Cambium Networks-designed antenna attached (more 
like a standard tall and narrow sector, rather than a 14” square flat panel). 
This antenna was built with frequency re-use in mind, and is optimized for use 
with the 450i platform. It is a true 90 degree sector, and eliminates the need 
for jumper cables as George mentions. 

I have attached a slide highlighting this (if it comes through). 

Matt 

From: Af [ mailto:[email protected] ] On Behalf Of Darin Steffl 
Sent: Friday, May 5, 2017 9:03 AM 
To: [email protected] 
Subject: Re: [AFMUG] RF attenuators 


Be careful with the integrated 450i though as the FTB isn't good enough for gps 
sync according to cambium. 


On Fri, May 5, 2017 at 3:00 AM George Skorup < [email protected] > 
wrote: 
<blockquote>

Accuracy. Known-good connectorized SMs to verify multiple APs in 3 and 
5GHz. Coaxes and attenuators only. I've used antennas and bare SMs 
pointed up at the ceiling and it's just not reliable. We ended up 
redeploying an old AP that apparently has bad Tx on one polarity. Really 
trying to cut down on the BS and multiple tower climbs. Also getting 
really sick of weather-seals leaking for no apparent reason. Which is 
another reason I'm not so mad about the 450AP going away. We'll probably 
just start using that fancy new 450i integrated 90 over time. No coaxes 
to worry about with that. 

On 5/4/2017 7:23 PM, Chuck McCown wrote: 
> Yes. 
> But is there a reason you don't want to use the paper clip trick? 
> Single piece of wire quarter wavelength is all you need. 
> 
> -----Original Message----- From: George Skorup 
> Sent: Thursday, May 04, 2017 5:54 PM 
> To: [email protected] 
> Subject: Re: [AFMUG] RF attenuators 
> 
> So... I'm having bad luck finding 60dB attenuators in DC-6GHz or 
> greater. I found some 50's, but they're only 4GHz. WTF. 
> 
> Stupid question. Can I stack 30's to get 60? I see lots of N to N in 
> 30dB on Amazon. Up to 1W mostly. Looks like for cellular amp/repeater 
> type stuff. So I assume they won't have a problem with bi-directional Tx. 
> 
> On 5/4/2017 5:33 PM, Matt Mangriotis wrote: 
>> 60 dB pads are what we typically use internally... 
>> 
>> Matt 
>> 
>> -----Original Message----- 
>> From: Af [mailto: [email protected] ] On Behalf Of George Skorup 
>> Sent: Thursday, May 4, 2017 5:31 PM 
>> To: [email protected] 
>> Subject: [AFMUG] RF attenuators 
>> 
>> I need to RF test some 450 APs with connectorized SMs. What's a good 
>> option for N to N attenuators? I'm thinking I want like 60dB so 
>> there's no chance of the SM overloading the AP Rx (because SM Tx 
>> power control doesn't kick in for a few minutes). 
> 



-- 


Darin Steffl 

Minnesota WiFi 

www.mnwifi.com 

507-634-WiFi 

Like us on Facebook 
</blockquote>


</blockquote>


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