If any of you guys have a neighbor down the street with that sweet ride from the 1950s, chrome bumpers, bright red, 600 horsepower, you know the one. well, it also has a totally unshielded/ unsuppressed ignition system, which will light up my spectrum analyzer noise floor about 20 db when he drives by. totally obliterates any chance of hearing DX below 500 Kilocycles. Even the close by DGPS beacons are gone