I get terrible cell phone reception in my basement where my workshop is.
 My solution so far is to stand in a particular spot during calls of any
great length - in this position I get pretty decent reception, but it's
out of the reach of my computer and other resources I'd like easy access
to during those calls.

Due to various billing and customer relations issues I cannot use the
landline (or even a second line if I had one) to receive these calls.

My understanding of radio and antenna theory is limited so I had hoped
to find a cheap cell phone repeater (passive) which would have an
antenna in the basement, and coax to the attic to another antenna.  My
searches come up with all the car repeaters or the snake oil cell phone
boosters.

Having waved a dead fish over the problem a few times I've determined at
last to ask if anyone here can help.  I've got a bit of coax, and I can
fashion non-complex assemblies so if you know of a site which has a
homemade unit or can give me an idea of something to try I'm all up for it.

FWIW, the phone is a samsung and I receive digital service at home.

-Adam

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