As far as I remember, that band was never a ham band. It was occupied by some carrier-current devices (which ran over power lines). It's actually part of the long-wave broadcast band. I think that a lot of experiments were carried out by hams and others using equipment that complied with Part 15. Because antennas are so inefficient at those frequencies, you could put a lot of RF into an antenna and still not radiate much. Official internationally-agreed allocations are around 137 and 475 KHz, although I don't remember which of those are fully legal in the USA at the moment. -----Original Message----- From: Phil Scovell Sent: Tuesday, September 10, 2013 12:32 AM To: [log in to unmask] Subject: 170 to 190 KHz Is that still a ham band and has anyone ever heard any beacons on it = before? I read an article about a guy in Canada and a guy in England = that actually made a contact using software the sent and received dits = at 30 seconds and dashes at 90 seconds, or something like that, and = actually established a contact many years ago. Phil. K0NX Phil. Living His Name