IME, bandpass filters are useful in 900MHz, if you are close to a pager tower. Around here, those are on 930MHz or so and very hot.

But if you want to co-locate a couple 900MHz UBNT AP's, I think channel filters are the way to go... If I can find any.

--


On 1/3/2015 1:43 PM, RickG wrote:
I meant for 900MHz.

On Sat, Jan 3, 2015 at 5:54 AM, Blair Davis <the...@wmwisp.net <mailto:the...@wmwisp.net>> wrote:

    IME, bandpass filters are useless on 2.4GHz unless you have a
    major source of out of band interference...

And, being locked into a channel isn't too bad, in the country. Don't know how well it would work in the city...

--
    On 1/2/2015 9:02 PM, RickG wrote:
    Yes, getting locked into a channel is a real problem. Does
    filtering below and above the range help by using a filter such
    as  this: http://www.rflinx.com/products/filters/900/bpfx/

    On Fri, Jan 2, 2015 at 1:34 PM, Chuck Hogg <ch...@shelbybb.com
    <mailto:ch...@shelbybb.com>> wrote:

        I've used these with success, but it locks you into a channel.
        
http://www.l-com.com/bandpass-filter-rf-splitter-24-ghz-indoor-8-pole-ultra-high-q-wifi-band-pass-filters


        Regards,
        Chuck

        On Fri, Jan 2, 2015 at 12:58 PM, Air Link
        <airl...@airlinkrb.com <mailto:airl...@airlinkrb.com>> wrote:

            Can you share your source for 2.4 filters?
            Thanks

            On Fri, Jan 2, 2015 at 11:52 AM, RickG
            <rgunder...@gmail.com <mailto:rgunder...@gmail.com>> wrote:

                Any news on cavity filters for 900MHz?

                On Wed, Dec 31, 2014 at 1:19 PM, Blair Davis
                <the...@wmwisp.net <mailto:the...@wmwisp.net>> wrote:

                    No.

                    We did try shielding with metal plates, but it
                    seemed to be reflections.

                    I'll give it another shot when I find some cavity
filters that allow me to channelize the band. That has worked extremely well on 2.4GHz.

                    --


                    On 12/31/2014 12:09 PM, Rory Conaway wrote:

                    Blair, did you use RF Armor shield kits?

                    Rory

                    *From:*ubnt_users-boun...@wispa.org
                    <mailto:ubnt_users-boun...@wispa.org>
                    [mailto:ubnt_users-boun...@wispa.org] *On Behalf
                    Of *Blair Davis
                    *Sent:* Tuesday, December 30, 2014 10:32 PM
                    *To:* Ubiquiti Users Group
                    *Subject:* Re: [Ubnt_users] Rocketm900

                    yes.  2 omnis on different polarity's.  I doubt
                    2 omnis on the same polarity would be of much use...

                    Tried 3 rockets on 3 sectors... can't get enough
                    isolation

                    We do cavity filters on 2.4GHz to isolate
                    sectors from each other...

                    Looked for cavity filters to make the 900MHz
                    band into 3 8MHz channels, never found anything
                    useful.

                    --

                    On 12/31/2014 12:25 AM, Chris Soiles wrote:

                        So one rocket 2 antennas?

                        Anyone doing 3 rockets and 120 sectors?

                        Sent from iPhone 5S

                        Chris Soiles

                        Owner

                        Rio Cities

                        csoi...@riocities.net
                        <mailto:csoi...@riocities.net>

                        505-966-6389 <tel:505-966-6389>


                        On Dec 30, 2014, at 10:24 PM, Blair Davis
                        <the...@wmwisp.net
                        <mailto:the...@wmwisp.net>> wrote:

                            We do it with separate V-Pol and H-Pol
                            omnis...

                            Some just terminate one chain with a
                            50ohm and run just a V-Pol.

                            --

                            On 12/30/2014 11:50 PM, Chris Soiles wrote:

                                Any suggestions for getting 360
                                coverage with RocketM900's

                                Chris Soiles

                                Owner

                                Rio Cities

                                csoi...@riocities.net
                                <mailto:csoi...@riocities.net>

                                505-966-6389 <tel:505-966-6389>



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-- West Michigan Wireless ISP
                    Allegan, Michigan  49010
                    269-686-8648  <tel:269-686-8648>
A Division of:
                    Camp Communication Services, INC


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-- West Michigan Wireless ISP
                    Allegan, Michigan  49010
                    269-686-8648  <tel:269-686-8648>

                    A Division of:
                    Camp Communication Services, INC


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-- -RickG KyWiFi

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