Chris, I sim'ed this with NEC-2 over average Sommerfield/Norton ground. I get = the same numbers as Earl did using EZNEC3. 7040 kc. 20.55 m Average soil 20.60 m Rocky soil 20.55 m Sandy soil These are with AWG #14 wire. With #22 the length increases by 0.05 m. I = have found though that the actual length needs to be about 1% shorter = than NEC-2 predicts. Dave