Author: Johnson Francis

So far I have tried only SSTV reception on VHF at 145.800 MHz and I had received a few images earlier. This time the SSTV transmission from the

Including an AM (Medium Wave) radio in a “Go Kit” is one of the most practical decisions for emergency preparedness. While FM is great for local music and

These days we are used to Dual In-line Package (DIP) ICs. In fact, I am seeing a Single-In-Line (SIL) Package IC for the first time. I located this

I had a UPS which had gone out of order. Took out the transformer for repurposing into a DC power supply as it was a heavy duty one.

Dayton Hamvention 2026 is just around the corner, scheduled for May 15–17, 2026, at the Greene County Expo Center in Xenia, Ohio. This year’s theme is “Radio Adventure,”

Sporadic E (Es) is a fascinating and often unpredictable form of radio propagation that occurs in the ionosphere’s E-region, roughly 90 to 160 km above the Earth’s surface.

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)

As six meter or the Magic Band season is around, it will be good to have at least a 6m dipole, though a Yagi with three elements or

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