SMS DX ALERT

Ham Radio News

Using SMS DX ALERTS NETWORK of 20 dedicated radio receivers located across the globe, SMS DX ALERTS monitor amateur radio QSOs in real-time – sending you a text message alert if the new DXCC one, continent, grid or IOTA station that you need is received. Also include alerts of SFI /A &K Solar activity Values.…

Morse-code trainer

DIY

My kids are learning Morse code this summer, so I threw together this little circuit to help them learn. And to make it more fun… It uses an ATtiny85 ($2.26 at digikey.com) to drive a piezo beeper (? $3.50 at Radio Shack.) The ATtiny85 takes 5.5V max, so I built the circuit on a piece…