The question to ask is not “can XYZ piece of equipment shoot through trees” but 
“can 5 GHz shoot through trees”.  The simple answer is no.  A somewhat more 
nuanced answer would be along the lines of expect to lose 10-20 dB of signal 
per tree, depending on whether the trees are in the middle of the path or near 
one end (and what kind of trees).

If you really have your heart set on the PMP450 series and NLOS through trees, 
maybe look into the 450i series at 900 MHz.  The lower frequency fares better 
through foliage, but comes with its own set of issues, including interference 
and limited spectrum.


From: Ryan Mano 
Sent: Tuesday, February 02, 2016 10:50 AM
To: [email protected] 
Subject: Re: [AFMUG] pmp450

am waiting on another sm I really think I have a bad sm 

am doing all what you guys are saying and nothing

can the 450 shoot though some trees of does it need line of site


-------- Original message --------
From: George Skorup <[email protected]> 
Date: 2016-02-01 8:53 PM (GMT-05:00) 
To: [email protected] 
Subject: Re: [AFMUG] pmp450 

Are you talking about the Cambium 60 degree sector that has the third connector 
for FSK (in the middle I think)? Or did you just put the FSK AP on the vertical 
port for testing before swapping to the 450 AP?

It will sit at 8X/1X QPSK MIMO-A while scanning to listen for beacons, so that 
is normal. I think you need to figure out why the SM can't hear the AP at 
range. Could be bad/damaged SM or AP. Do you have another SM or AP to try? Or 
RF pigtails between the AP and antenna. Easy way to get some idea of what's 
going on is to run the spectrum analyzer on the AP. Does it see anything at all?


On 2/1/2016 6:40 PM, Ryan Mano wrote:

  It registers 12 feet in front of the AP at 8x/1x…if I point at it 1 mile down 
the road it will not link just says scanning



  I only enable the  freq that the ap is using and unchecked all the rest…this 
is what I meant by isolating

  AP eval shows nothing at 1 mile mark but close up it shows



  So from what you guys are saying the first 8x means what the sm is capable of 
doing and the second number 1x is actual speed?



  So if it registers at 1x…12feet in from the of ap then it would make sense 
that it would not see anything if I try it at a mile

  Guess I will have to pass traffic through it to see if it works from what you 
guys are telling me



  I know for a fact that the sector antenna works because I attached a pmp100 
AP to it and that registered without any issues…do you think me plugging a 
pmp100 into the sector antenna would cause this?







  From: Af [mailto:[email protected]] On Behalf Of George Skorup
  Sent: Monday, February 1, 2016 5:09 PM
  To: [email protected]
  Subject: Re: [AFMUG] pmp450



  OK, then it's not what I was thinking. If you had software on them older than 
13.2 I believe, and you also had an AP where the factory reversed the pigtails 
internally, your beacons would end up on horizontal instead of vertical and the 
SM probably wouldn't hear it.

  You say you're getting 8X/1X but it's also not registering. That does not 
compute. As other have suggested, try locking down the SM's scan list to the 
exact frequency and channel bandwidth that the AP is on. Tone alignment helps. 
If you can get a laptop, tablet, phone, etc. and look at the Tools > AP Eval 
page on the SM, does anything show up there? That's one of the first things our 
techs are supposed to do when troubleshooting on-site. If it's obviously not an 
alignment issue, log in and look at the AP eval.

  On 2/1/2016 3:46 PM, Ryan Mano wrote:

    Running 5.7 software ver 14.1.1



    From: Af [mailto:[email protected]] On Behalf Of George Skorup
    Sent: Monday, February 1, 2016 4:42 PM
    To: [email protected]
    Subject: Re: [AFMUG] pmp450



    There still seems to be some misconception on this. 8X/1X means that it's 
8X capable / 1X current. It's always going to show 8X capable (or 2X for FSK, 
3X for 430). After the / is what you need to pay attention to. Also, the uplink 
and downlink are independent. On the AP session status page (power tab), that's 
the downlink rate to that SM. On the SM main page, link status, etc., that's 
the uplink rate to the AP.

    What band is this? 2.4, 3.6, 5.4 or 5.7? And what software version do you 
have on the radios? It'd be best to stick with 13.2.1 for now.

    For the longest time I too thought this was backwards. I assure you it's 
correct.

    On 2/1/2016 2:26 PM, Ryan Mano wrote:

      8x down 1x up



      this is the first sm am trying to install on it

      ​



      the freq am on is very clean not sure what the problem is....unless am 
missing a setting?










--------------------------------------------------------------------------

      From: Af mailto:[email protected] on behalf of Josh Luthman 
mailto:[email protected]
      Sent: Monday, February 1, 2016 3:17 PM
      To: [email protected]
      Subject: Re: [AFMUG] pmp450 



      Signals on each side? 



      8x down 1x up?  Could be an uplink path issue or heavy interference at 
the AP side.  Have you changed frequencies?  Spectrum analysis?  Is this the 
first SM on the AP?





      Josh Luthman
      Office: 937-552-2340
      Direct: 937-552-2343
      1100 Wayne St
      Suite 1337
      Troy, OH 45373



      On Mon, Feb 1, 2016 at 3:16 PM, Ryan Mano <[email protected]> 
wrote:

        am new to the pmp450 looks straight forward but am having issues 
registering it from a distance​



        when I point the sm  which is 12 feet in front of the ap it syncs 8x by 
1x ...but if I go 1mile down the road it doesn't register at all



        not sure what am doing wrong...has anyone had this similar issue like 
this?



        thanks




















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