100BaseT runs at ~~ 140 MHz (give or take). We've sometimes seen it interfere with HAM radio repeaters.

10BaseT would be a good bet with 900 FSK, as 10 MHz is 2X what the aggregate throughput is.

bp
<part15sbs{at}gmail{dot}com>

On 7/23/2015 2:51 PM, Craig House wrote:
I think they said 152.x mhz I could check but if it's harmonics we are screwed for 900mhz no matter what

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On Jul 23, 2015, at 16:48, Adam Moffett <[email protected] <mailto:[email protected]>> wrote:

Yeah.....I was wondering if it's 450mhz or thereabouts

On 7/23/2015 5:41 PM, Work wrote:
Is the two way system on a really low band that would be a harmonic of the frequency that you're on right now?


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On Thu, Jul 23, 2015 at 5:15 PM, Craig House <[email protected]> wrote:

    We have another tower that we have installed 900 FSK equipment
    on that seems to be causing problems with a 2 way repeater
    system. The noise floor on the 2 way system is 20 db higher when
    the equipment is on. The down side to this is the tower owner is
    the repeater owner and without his repeater his business suffers
    and the need for the tower is gone. We have in the past had this
    issue and ran coax all the way up the tower to have only the
    antennas on top and it solved this issue but I dont want to do
    this for a FSK 900 radio? So my question would be, what are the
    odds that the new 450 900 mhz that is only moments away from
    being released would work without running Coax up the tower? I
    think this is an issue with the processor in the FSK board not
    the RF @ 900mhz that is causing the problem. What have others
    done about this. We have another tower that seems to be on the
    brink of this same issue as well and I dont want to completely
    pull off all 900 FSK but maybe I should? Should I just go to
    UBNT 900 until the 450's release?




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