Wednesday, October 9, 2019

Fun with ring modulators for inverted SSB and crazy audio

Have a receiver that only receives upper sideband signals but wish to receive lower sideband transmissions (eg from hams) on it? Here's something that can  help. It's a sideband inverter. Because it operates at audio there's no internal modification to your equipment needed. And if you wish to transmit on the opposite sideband you could use it in reverse as well. 

The unit uses a diode ring modulator made with two transformers. And an audio oscillator at 3 kHz. Find out more in this detailed video here: 

PS: I've now written six books on various aspects of amateur radio. Whether you experiment with antennas, enjoy QRP or are starting out in radio there's a book for you. Find out more here.

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