Trying to increase the detecting range of cell phone detector to few more meters for observing wide.

GopherT

Joined Nov 23, 2012
8,012
What kind of "wide" are you trying to observe?

How "wide" are you trying to observe?

How many wide are you trying to observe?

A few more of what kind of meters?
1654E9DB-4685-493B-8ED2-A4B04B93CEDA.jpeg
 

Thread Starter

iamprincejoy

Joined Aug 7, 2017
25
what I mean is just i want to have a long distance range for a mobile detector. Because that circuitcan detect only for about half meter.
 
Last edited:

DickCappels

Joined Aug 21, 2008
7,689
I am amazed that somebody chose the CA3130 as a detector. Try making a loop antenna and turning it with the two input matching capacitors to the telephone's transmit frequency.
 

DickCappels

Joined Aug 21, 2008
7,689
There is noting wrong with the CA3130. It was one of if not the first CMOS opamp from the mid-1970's. Its designers would not have imagined that in the distant future anybody would be using it as a microwave detector.

As I said, it would probably work better with an antenna.
 
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