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'[EE] Re: I am interested in improving my home cell'
2007\11\12@033142 by Vasile Surducan

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On 11/12/07, Cedric Chang <spam_OUTccTakeThisOuTspamnope9.com> wrote:
> Is it better to look at an external antenna such as a yagi
> or consider a signal repeater *
>
> Could someone tell me how a cell phone signal repeater works *

A signal repeater could be a passive or and active one.
A passive repeater is a receiving antenna connected directly with a
transmitter antenna.
Such repeater is usually difficult for manufacturing because the
coupling must be perfect matched which is impossible, so the loss on
the connection path is usually equal or higher with the signal
strenght at the receive location without using this repeater...


>
> Best
>
> Cedric
> -

2007\11\12@102734 by alan smith

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Take a look at Wilson Electronics, they make products for this type of application

Vasile Surducan <.....piclist9KILLspamspam@spam@gmail.com> wrote:  On 11/12/07, Cedric Chang wrote:
> Is it better to look at an external antenna such as a yagi
> or consider a signal repeater *
>
> Could someone tell me how a cell phone signal repeater works *

A signal repeater could be a passive or and active one.
A passive repeater is a receiving antenna connected directly with a
transmitter antenna.
Such repeater is usually difficult for manufacturing because the
coupling must be perfect matched which is impossible, so the loss on
the connection path is usually equal or higher with the signal
strenght at the receive location without using this repeater...


>
> Best
>
> Cedric
> -

2007\11\12@151917 by Brooke Clarke

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Hi Cedric:

I live in a forest canyon and have thought about how to do this.  There are a
number of approaches like external antenna, ext ant with booster amp indoors or
outdoors, classical repeater, Intelligent repeater, cell to wireline adapter.
I've written them up at:
http://www.prc68.com/I/phones.shtml#Rpt

Have Fun,

Brooke Clarke
http://www.PRC68.com
http://www.precisionclock.com
http://www.prc68.com/I/WebCam2.shtml 24/7 Sky-Weather-Astronomy Cam

2007\11\12@154708 by Dr Skip

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I have had success with using the phone as part of a yagi. I had a Motorola
phone that was terrible at the fringe, so I calculated some crude distances and
mounted it between a longer and shorter wire all in parallel. Wire length
dependent on freq (a crude yagi antenna). I could then at least stay on a call
and I could tell the tower heading by swinging it around. It was usually worth
1-2 "bars".

Haven't needed to do that in a few years though... Using bluetooth, one
wouldn't even need to touch the phone these days.

There was also one time in the woods I could only make a call by coupling to a
very large pine tree (phone had to be a few inches from it while on my ear),
and my other arm seemed to tune it somehow. If I moved away from the tree, no
signal, and certain arm positions peaked it. It was PCS too, not analog.


Brooke Clarke wrote:
{Quote hidden}

2007\11\12@161322 by Nate Duehr

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On Nov 12, 2007, at 1:46 PM, Dr Skip wrote:
>
> There was also one time in the woods I could only make a call by  
> coupling to a
> very large pine tree (phone had to be a few inches from it while on  
> my ear),
> and my other arm seemed to tune it somehow. If I moved away from the  
> tree, no
> signal, and certain arm positions peaked it. It was PCS too, not  
> analog.


Sounds more like the tree was blocking multipath signals than acting  
as an antenna.

--
Nate Duehr
natespamKILLspamnatetech.com



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