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GSM booster.

Hi
I am looking towards some information that can help me boost 900/1800
MHz range GSM signals.

I was specifically thinking in the directions of constructing an
antenna to achieve this. I have a very terrible GSM signal strength in
the area that I live. I need something to boost the signal strength
indoors.

I am fairly new to this stuff, I could think of two ways of doing this.
Using some kind of signal booster that will increase the signal
strength and transmit it indoors, or using a signal reflector.

I tried googling for some information, but could not find anything
concrete.

Please point towards some tutorials/literature on this topic that will
help in clearing up my concepts and eventually helping me resolve my
problem :)
 
M

Mark VB

Jan 1, 1970
0
Hi
I am looking towards some information that can help me boost 900/1800
MHz range GSM signals.

I was specifically thinking in the directions of constructing an
antenna to achieve this. I have a very terrible GSM signal strength in
the area that I live. I need something to boost the signal strength
indoors.

But with such an antenna to boost the signal strength indoors... shall
your GSM be able to communicate in the other direction ?



Mark Van Borm
 
Ah !
Yes so we could use another pair of receiver transmitter :)

Hmm, I understand that will create a lot of complications. I think it
must not be so simple, otherwise the market would have been flooded
with such options.

Chucking the idea for now.
 
D

Doug McLaren

Jan 1, 1970
0
| I am looking towards some information that can help me boost 900/1800
| MHz range GSM signals.
|
| I was specifically thinking in the directions of constructing an
| antenna to achieve this. I have a very terrible GSM signal strength in
| the area that I live. I need something to boost the signal strength
| indoors.

If you know the approximate wavelengths of the frequencies involved
(and it seems you do, though you've mentioned two bands, not one) you
could make a highly directional antenna for that frequency and point
it directly at the nearest tower outside, then run coax to an
appropriate dipole or two (because you want the stuff inside to not be
very directional) inside your house. No amplifiers needed -- it'll
all be completely passive.

Though of course at 900 or 1800 MHz, coax is very lossy, so you'll
need good coax, and will want to keep it short. On the bright side, a
high gain 900 or especially 1800 MHz antenna isn't hard to make and
isn't very big. Google for `yagi antenna', though a yagi is just one
of several types of antenna that could work.

I don't know much about the specifics of GSM phones, but if they stick
to one band, and transmit and receive on the same band, this would
work well. If they bounce between two bands, you'd need two sets of
antennas if you can't get by with boosting just one.

Of course, I've never done this. It ought to work though.
 
J

Jasen Betts

Jan 1, 1970
0
Hi
I am looking towards some information that can help me boost 900/1800
MHz range GSM signals.

some car kits provide an external antenna.

If you want to walk round with the phone while talking that's another matter
entirely.

Bye.
Jasen
 
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