It’s that time of year again—the “Magic Band“ is definitely starting to wake up. With May already underway, we are entering the peak of the Sporadic E (Es)
There are three controls on the standard interface for most PT2399 echo and reverb modules. Just a demo of the interesting echo function of the pre-amplifier board which
The PT2399 is a widely used CMOS digital echo processor IC, prized in the DIY electronics community for its ability to mimic analog “bucket brigade” delays with modern
A Hexbeam is a directional, gain antenna popular among amateur radio operators, especially those with limited space. It is characterized by its unique “inverted umbrella” or hexagonal shape.
Wiring an electret microphone is a straightforward process, but unlike dynamic microphones, electret elements require a small amount of DC power (called bias voltage) to operate the internal
The Omega Match is an evolution of the Gamma match. While a Gamma match uses a single series capacitor to cancel out inductive reactance, the Omega match adds
Most radio amateurs will be familiar with Gamma match for Yagi antennas and some will be familiar with Beta and Delta matches as well. We will review all
As part of troubleshooting the low output from the pre-amplifier board, I opened up the PTT mic to see the connections inside. It seems to be a dynamic
