Field strength meter 1-150Mhz

  

Posted on Dec 12, 2012    6342

The tuning range is determined by coil (L) dimensions and setting of Cl. Coils can be plugged in for multirange use or soldered in place if only limited frequency range is of interest. Cl = 36 pF variable, C2 = 047 disc, D = 1N60 (germanium) and M=0-1 mA meter


Field strength meter 1-150Mhz - schematic

For increased sensitivity, use 50 µA meter.




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