[1000mp] (no subject)

[John and Mary Powell]

Bob during the latest ARRL CW Contest our setup locked up, including the computer controlling proceedings. This occurred after another set of headphones, with extension lead, was connected to allow a visitor to the station listen to the contest proceedings. Things immediately corrected themselves after the second pair of 'phones were disconnected. We didn't have time to measure the length of the total lead length, but suspect it was a quarter wave on 21mhz, the band being used at that time.
73
John Powell. ZL1BHQ