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Building a Mobile Signal detector for my project - RF Cafe Forums
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| Sin_Eater |
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Post subject: Building a Mobile Signal detector for my project
Posted: Tue Apr 06, 2010 11:17 am
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Joined: Tue Apr 06, 2010 11:09 am
Posts: 1
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Hi there,
I am building a mobile signal detector which will use spread spectrum to
pick up signals. It will detect GSM and 3G signals. I could really use a starting point
here and any guidance in this would be highly appreciated.
Many Thanks,
Sin_Eater
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| Cube Slave
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Post subject: Re: Building a Mobile Signal detector for my project
Posted: Mon Sep 20, 2010 10:07 am
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| Captain |
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Joined: Tue Jun 06, 2006 10:10 am
Posts: 16
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If all you want to do is detect the presence of the signals, you could build a wideband
detector circuit for the bands of interest, then do a little amplification into a threshold
detector (comparator opamp circuit. The entire circuit could probably be built from
scrap box parts. The antenna(s) could be simple 1/4-wave monopole.
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Posted 11/12/2012
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