Field strength meter 1-150Mhz


Posted on Dec 12, 2012

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
Click here to download the full size of the above Circuit.

For increased sensitivity, use 50 µA meter.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Siren Circuits using timer 555
Low pass filter for Subwoofer Circuit
Voltage detector relay
The Design of Car Audio Power Amplifier
3-Output Isolated Flyback RegulatorCircuit using LM2577
Booster Antenna Circuit 550Khz to 1650Khz
Temperature Controller with 555 Circuit
Discrete PWM Generator Circuit
555 timer circuit diagram of a group of anti-jamming
Press light switch double circuit 7
Low Cost integrator CC4069
Switching the constant current source consisting of the application circuit W723



Top