Don Johnson, W6AAQ, inventor of the screwdriver mobile antenna died Wednesday, April 14th according to his son Don Jr. He had been ill for several months and died in a hospital. I have no further details regarding his illness. Don lived in Esparto, a small community in Northern California west of Sacramento. He will be buried with full military honors at the National Cemetery in Dixon, California. A memorial service will be held in July. When the FCC first authorized HF mobile, a group of us in the SF Bay area decided to go mobile on 75 meters. We chose 3995 Khz (then Mhz) as an operating frequency to reduce the possibility of high power fixed stations interferring. We conducted field tests with our home brewed antennas using a field strength meter to see who had the strongest signal. Don came up with the idea of using a metal tube with a whip on top of a coil that fit inside the tube. By raising and lowering the coil a resonant point could be found. He was searching for a method of tuning the antenna remotely when W6MHP, Denny (sk), suggested using the motor from a cordless screwdriver. Thus the "screwdriver mobile antenna" was born. Don received a patent on the device and built and sold thousands. In his words "Plus thousands that were sold by shamelsss bootleggers". Don was a retured navy radioman and pilot. He once told me that he had spent 30 years in the navy and never served aboard a ship. For a time, while in the navy, he flew three round trips weekly between San Francisco and Honolulu on MARS seaplanes. My wife and I attended Don's 91st birthday party last July. You will be greatly missed old friend but may you rest in piece......Al Melcher, W6ARM.