[Mikrotik] reduced signals

Josh Luthman josh at imaginenetworksllc.com
Mon Oct 13 01:37:30 CDT 2008


In my experience water eliminates the signal...not a mere ~15db.

In my past a small dip like that was the radio or antenna.

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

Those who don't understand UNIX are condemned to reinvent it, poorly.
--- Henry Spencer


On Sun, Oct 12, 2008 at 6:08 PM, Randall Roberts <randall at basinbroadband.com
> wrote:

> Any moisture that gets into connectors will kill the signal. And the ones
> that are sealed pretty good with coax seal will seal in the moisture if it
> does manage to get in.  Every connector is a potential trouble spot. We try
> to put the radio enclosure right next to the antenna and use a 12" pigtail
> directly out of the enclosure to the antenna.
>
>
> ----- Original Message -----
> From: "Mark McElvy" <MMcElvy at AccuBak.com>
> To: "Mikrotik discussions" <mikrotik at mail.butchevans.com>;
> <MikroTik at part-15.org>; "WISPA General List" <wireless at wispa.org>
> Sent: Sunday, October 12, 2008 8:28 AM
> Subject: [Mikrotik] reduced signals
>
>
> >I have a site running a MT BH and AP. The BH is a RB411/sr5/rootennae
> > and the AP is a RB433/XR2/9db omni w/ v3.10. This setup has been up and
> > running about 6 months. Last Tuesday we had thunder storms run through
> > and I woke uo tp a dead tower. Turned out that the BH power supply died,
> > great, easy fix. Get back to the office and realize not all customers
> > are reconnecting. The send and receive signals are down at least 15db.
> > Replaced radios with no change. Realized that we ended up with two glass
> > tube lightning arresters, one near antennae and the other next to radio.
> > Pulled the one near antennae and everything seemed back to normal.
> >
> >
> >
> > Well Saturday morning I was checking things out and its back to the
> > reduced signals. I am at a loss as to what to do. Since Tuesday we have
> > had clear skys, cool temps at night and lots of dew.
> >
> >
> >
> >
> >
> > Mark McElvy
> > AccuBak Data Systems, Inc.
> >
> >
> >
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