700’ of cable and use as high capacity radios as you want.  It really is not 
that far if you have property access.  

From: Eric Kuhnke 
Sent: Monday, May 21, 2018 11:46 AM
To: [email protected] 
Subject: Re: [AFMUG] 8 mile link

Probably worth getting a spectrum analyzer that has 900 in its range, and a 900 
yagi, before spending the $2700+ on a 450i 900 AP and antenna. 

For the original poster's problem I would try, if possible, moving up to 3' 
dishes on both ends, and ac based radios. And using a 10 MHz channel. Might 
have a better chance of getting a signal like -61 (not -71) and through "some" 
trees. 

On Mon, May 21, 2018 at 10:31 AM, Mathew Howard <[email protected]> wrote:

  The problem with 900mhz, is that you never know if it's actually going to 
work in any given area until you try it.  If there are 900mhz smart meters 
around, don't even bother... but even if there aren't, 900mhz can be pretty 
unpredictable in my experience. If you do go 900mhz, PTP450 is definitely the 
best option.


  On Mon, May 21, 2018 at 11:59 AM, Erich Kaiser <[email protected]> 
wrote:

    900 PTP 450 with KP Performance Antennas, I run mine 3 miles completely 
NLOS on 7 MHZ and it runs fine to my house.  During heavy rain and through 
heavy foliage (Currently) this is what I am getting 










    On Mon, May 21, 2018 at 11:53 AM, Dave <[email protected]> wrote:

      Yeah, The 450i 900 system would definately do the trick 
      How much bandwidth do you need?
      The 900 on a 10Mhz channel we see around 35Mbs in a noisy environment on 
8x/4xmimoB rate.
      If your doing ptp with it then open it up to 20Mhz wide and bang on.
       


      On 05/21/2018 10:49 AM, Travis Johnson wrote:

        Ok. I'll give those a try and see what happens. Thanks.

        Travis



        On 5/21/2018 9:37 AM, Mathew Howard wrote:

          You could very likely get a bit more speed out of that by going to 
the new AC radios... my guess is that the airFibers would be even better, but I 
haven't used any of those in the 2.4ghz variety.



          On Mon, May 21, 2018 at 10:31 AM, Travis Johnson <[email protected]> wrote:

            The current signal level is -71. I have a 2ft dish on each side.

            Travis



            On 5/21/2018 9:15 AM, Mathew Howard wrote:

              Yeah... 900mhz PTP 450 is probably the best option.

              What kind of signal level do you get with the 2.4ghz radios? you 
could probably get a bit more out of it by going to airFiber 2x or Rocket 2AC 
radios... and maybe a bigger dish.


              On Mon, May 21, 2018 at 10:09 AM, Jeff Broadwick - Lists 
<[email protected]> wrote:

                900 PTP 450 from Cambium

                Jeff Broadwick
                CTIconnect
                312-205-2519 Office
                574-220-7826 Cell
                [email protected]


                > On May 21, 2018, at 11:05 AM, Travis Johnson <[email protected]> 
wrote:
                > 
                > Hi,
                > 
                > I'm looking for suggestions for an 8 mile link that will be 
shooting through a single wall of trees about 1/8 mile from one end of the 
link. Currently using 2.4ghz Ubnt radios. Works great during the winter, but 
once the trees fill back in, the link drops to about 5Mbps actual throughput. 
Would be nice to get 20Mbps.
                > 
                > Any suggestions? The trees are 80ft tall, so putting up a 
100ft tower at a residence is not really an option. The other side is on top of 
a 1000ft tall hill.
                > 
                > Travis
                > 










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