[PLUG] Backup RPi SD card

wes plug at the-wes.com
Thu Apr 13 11:13:16 UTC 2017


That is a good point, the best plan may just be to put an antenna on a pole
and run the lead inside.

I don't know anything about the equipment in that area.

-wes

On Thu, Apr 13, 2017 at 12:01 AM, Chuck Hast <wchast at gmail.com> wrote:

> Well, if you have 1-2 bars a directional antenna will give you some gain,
> If you can add 5 db to that you should be pretty good. Wonder what they
> are using out there? I have an app that shows me which band the radio
> is working, I will have to look and see what it is. If you look at
> directional
> cellular antennas there are quite a few. As to the device, I have been
> looking
> at several devices all of them are some sort of cell modem, I am trying to
> find one that uses PoE and is in a weather proof case. Having lived in
> FL I know what salt air is all about. In Tampa anything outside had a life
> of about 2 years if it was any of the common metals. I.e. Aluminium, most
> steel, and iron. About the only thing that had a reasonable life was SS.
>
> Back on the antenna thing, yes, if you can add some elevation to it even
> better. Vegetation is evil. the NW is no better than tropical rain forest
> and
> in some cases worse, the needles on some of the conifers are 1/2 and 1/4
> wave length at some of the common used frequencies and those needles
> really suck up the RF. I had a similar situation in S. New Jersey, those
> needles were near enough to 800Mhz wavelength to cause major attenuation.
> 1/4 wave is about 9.8cm, which is about the same length as those pine
> needles
> in S. New Jersey woods.
>
> Gotta get to bed, am in San Diego tonight gotta go to LA (yetch) tomorrow.
> Flew in to LAX from PDX this morning drove down to SAN. Did a job now
> back to LA for another one. Then home, the only thing I am going to miss
> from here is the sun...
>
>
>
> On Wed, Apr 12, 2017 at 11:33 PM, wes <plug at the-wes.com> wrote:
>
> > >
> > >
> > >
> > > Wes, the neighbor that has the connectivity issues, do they have AT&T
> > > coverage on their property? If so I would certainly look into that
> > > offering.
> > >
> > >
> > >
> > I usually got 1-2 bars of signal strength on my AT&T phone. I didn't try
> > other carriers. I suspect it would be much higher with just a little
> > elevation, but he's right on the coast so weather protection is extra
> > important. Probably more important than the device used - it could just
> be
> > a phone with tethering enabled. But the salt gets into everything and
> > wrecks and ruins so fast.
> >
> > I wish he was a neighbor, sadly he's a 6 hour drive away (Gold Beach),
> so I
> > have to be extra careful about solutions I set up out there.
> >
> > -wes
> > _______________________________________________
> > PLUG mailing list
> > PLUG at lists.pdxlinux.org
> > http://lists.pdxlinux.org/mailman/listinfo/plug
> >
>
>
>
> --
>
> Chuck Hast  -- KP4DJT --
> Glass, five thousand years of history and getting better.
> The only container material that the USDA gives blanket approval on.
> _______________________________________________
> PLUG mailing list
> PLUG at lists.pdxlinux.org
> http://lists.pdxlinux.org/mailman/listinfo/plug
>



More information about the PLUG mailing list