When playing around with a cheap, handheld, dual-band radio, [Lior], a.k.a. [KK6BWA], found a schematic for a similar and even cheaper radio. He realized the programming pads were very accessible a… ...

The well-prepared pilot often includes a handheld radio in their flight bag to use during an inflight emergency. The challenge, however, is using your headset with the unit, because most require a ...