[GLLUG] Mobile phone antenna / booster

James Courtier-Dutton james.dutton at gmail.com
Tue Sep 10 20:20:21 UTC 2013

On 10 September 2013 19:38, Richard W.M. Jones <rich at annexia.org> wrote:

> On Tue, Sep 10, 2013 at 03:56:37PM +0100, James Courtier-Dutton wrote:
> > You can get broadband routers with 3G/2G on them.
> > Get a router, and then connect an external aerial to it.
> > You will need a SIM card in the router or usb stick to make it work
> though.
> Actually had no idea such a thing existed, but it does look ideal.
> Any tips on an external antenna?  I guess it has to be the right
> length.
> OTOH I may be able to get away with sticking the whole thing on the
> external wall since it's under the eaves and might be protected from
> rain with some ingenuity.
Ok, almost fell of my chair that you did not rubbish my idea, based on most
previous emails where you seem to think everything I suggest is a load of

Just google 3G antenna.
Typing "3G antenna" into amazon brings up lots of results. Do make sure
that the antenna is for the correct RF band.
Regarding "under the eaves", keep in mind what damage condensation might
do. Weigh this up against the RF loss you will get the longer the RF cable
Also consider that roofs are not made of brick, so RF singles get through.
You can put the antenna in the attic. My Freeview TV antenna is in my attic
and not outside at all.
Try going up into your attic with your mobile phone and see what the signal
is like.
By the way, I used to work for Lucent Technologies, which at the time sold
billions of $ of mobile phone infrastructure to telcos.
I also have considerable RF experience.

Kind Regards

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