I gonna discover new new fields of tech every month.
This time I want to take my mind into RF, a specific band of EM spectrum.
Thats my aim is to detect and analyze the emissions from GSM CDMA mobile devices(935Mhz to 1880Mhz for GSM900/1800 bands).Bluetooth and 2.4GHz wireless communication devices and leakage microwave emmisions etc.
Can you give me some suggestions regarding it.
I was inspired by **broken link removed**
So I decided to do my own design with AD8307ARZ. It's capable of detecting 0-500MHz only. Which siomply means I can detect almost any AM/FM/VHF bands.
The nature of phones like CDMA is that the power spectrum is spread very broadly over a wide band. Most of the power is spread so it appears to be a noisy bump in the RX spectrum. If you can really tune into the signal it resembles a Bart Simpson head.
So unless you have a really good analyzer you will not see much other than a rise in noise floor.
Below is probably taken directly from xmitt to analyzer.