According to a post on HCJB's Facebook page, Clayton Howard is a silent key. He passed away Thursday in Oklahoma at the age of 92. http://www.facebook.com/?sk=lf#!/no...eer-clayton-howard-dies-at-92/196176637065986 For those who got their start in radio as SWL's, at some point you couldn't help listenting to HCJB's SWL program, "DX Partyline", which Clayton hosted for many years. His was one of the first amateur callsigns I ever heard, since he was introduced at the beginning of the program as HC1RT. In fact, I got the mistaken impression that, at that point, HCJB signed off the air, and the program was actually carried by HC1RT. It turns out that hams can't do that, but it's still one of the things that piqued my interest in ham radio. According to the QRZ.com database, it looks like his U.S. callsign was W9KJZ. HC1RT, W9KJZ, SK.