Have you tried?
Hello Esteban
I'm just wondering and it may be a bit off topic for this thread, but most of your pistol detectors are using LASERS in the IR spectrum. Which is good for gold as it reflects IR very well. I guess your doing this because of ease of sourcing components. But have you ever tried any other frequncies for the Tx. I only ask because where i live the paging system frequency is close to Infrared but unlike Inrared frequencies which bounce of the ground surface, the paging system frequencies are known to penetrate hills. The only problem i can see would be making instead of a IR LASER to change the frequency and make a MASER. What's your thoughts?
regards
DeDEVIL
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