Signal Conditioner


Posted on Aug 1, 2012

This circuit takes audio from a receiver that might have a weak CW or tone signal and uses a PLL (Ul) to recover the wea


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

k signal. Ul produces a low on receipt of a tone or note of frequency, determined by Rl, R7, and C2. The output of Ul (pin 8) goes low, keys tone generator U2, and produces a new tone. The circuit is useful in cleaning up CW reception in static, noise, etc.




Leave Comment

characters left:

New Circuits

.

 


Popular Circuits

Coil-less FM Transmitter
Positive-peak-detector
Digital Main Voltage Indicator
ADUC816 1MIPS 8052 MCU + 8kB Flash + Dual 16-Bit ADC + 12-Bit DAC
The ATL-3 Loop Antenna
80M CW QRP rig
DC-coupled multi-stage amplifier circuit b
555 tri-color flash circuit diagram ornaments



Top