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RE: [Karlnet] repeted Radio failure.

To: "'Karlnet Mailing List'" <karlnet@WISPNotes.com>
Subject: RE: [Karlnet] repeted Radio failure.
From: "Alex Phillips" <alexp@rbns.net>
Reply-to: Karlnet Mailing List <karlnet@WISPNotes.com>
Date: Thu, 29 Jul 2004 15:11:21 -0400
List-post: <mailto:karlnet@WISPNotes.com>
Just put the 24vdc into the board.  12v is not enough.  That is your
problem.

If you are also powering a fan in that box, then make your self a
Ethernet jig to pull the power off the Ethernet before it goes into the
PI-CAT5 power regulator and pull 24 off for the board and then use the
others for your fan or what ever.

-----Original Message-----
From: karlnet-bounces@WISPNotes.com
[mailto:karlnet-bounces@WISPNotes.com] On Behalf Of
joe@rockymountains.net
Sent: Thursday, July 29, 2004 1:54 PM
To: Karlnet Mailing List
Subject: Re: [Karlnet] repeted Radio failure.

I am using a 24v (BreezeComm PI-CAT5 dual) PoE injector/regulator that
delivers 24V at the antenna which is then regulated to 12V and put in
the
power connector on the KN-100.  The run is outdoor UTP about 25 Ft.
There
is a 14 Ga. solid copper ground.

Is the performace degradation that you have seen on the TX only?

Joe

----- Original Message ----- 
From: "Chris Conn" <cconn@abacom.com>
To: "Karlnet Mailing List" <karlnet@WISPNotes.com>
Sent: Thursday, July 29, 2004 10:51 AM
Subject: Re: [Karlnet] repeted Radio failure.


> joe wrote:
> > I have a location that seems to destroy radios.  I'm using KN-105
w/PoE
and
> > a 12v regulator in an integrated 19 dBi antenna and SMC 200mw
radio(have
> > also tried Ecomm's 200mw).  The antenna is mounted on a composite
shingled
> > roof and is grounded to the incoming power conduits for the
building.
The
> > company uses large amounts of power, I see a gauge on the power
panel
that
> > continuously reads in excess of 250A (440V).  There has been some
lightening
> > in the area, but this location seems to toast radios even when there
is
no
> > lightening.  Recently every other day.
> >
> > Anyone have experience/suggestions with/for this sort of problem?
> >
> > Joseph Conrad
> > Mountain Computer Wizards, Inc.
>
>
> We have had problems similar to this where the radio performance (ie
> signal) would degrade to very low levels, even under 30mW.  We seem to
> have solved this problem by using a 24VDC supply.  We suspect that the
> long run of ethernet cable (maybe around 150 feet) was causing this.
We
> have damaged 3 200mW radios in this manner.  However they would still
> function, only very attenuated signal.  How long is your ethernet?
>
> Chris
> _______________________________________________
> Karlnet mailing list
> Karlnet@WISPNotes.com
> http://lists.wispnotes.com/mailman/listinfo/karlnet
>


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