Ham Radio – A contact sport

I ordered an adapter (2.5mm Headset/3.5mm Audio Headphone Adapter) for my Cingular 8125 SmartPhone. This adapter converts the proprietary 4 conductor audio jack on the PDA to both a 3.5mm audio headphone jack(for use with headphones or speakers or anything else) and to a 2.5mm headset jack. Yesterday it arrived so I gave it a [...]