Many thanks to SRAA contributor, Tom Gavaras, who shares the following recording and notes:

Ray Briem Show on DXing and Shortwave Listening aired on the ABC Talk Radio Network. The show features many shortwave recordings/interval signals plus interviews with Stewart MacKenzie (American Shortwave Listener's Club), Dr. Richard E. Wood (well known DX-er), Tom Meijer (Radio Netherland’s Happy Station program), Arthur T. Cushen (well known blind DX-er), Glenn Hauser (Review of International Broadcasting/World of Radio), Ian McFarland (Radio Canada International’s Shortwave Listener’s Digest), H. D. Norman (NDXE Radio which never made it on the air), Joe Costello (Owner of WRNO Worldwide) and callers. The recording has popping sounds that were not able to be fully filtered out.