Advanced GQ EMF-390 Multi-Field, Multi-Function EMF Meter
and RF Spectrum Power Analyzer
Probably the best Options for Targeted Individuals for Price and Specifications $120
Why? To identify incoming Signals/ Safety & then what frequency signals to try to block....
HOW TO BLOCK AND JAM SIGNALS....
ADF4351 35M-4.4G RF Signal Generator PLL Sweep Frequency Generator Touch Screen
Always > DO YOUR OWN RESEARCH
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