Most Popular Articles
Leonard Kahn Passes
Ft Lauderdale, FL - Jul 2, 2012 - Radio magazine has received reports that Leonard Kahn, most recently known for his digital AM system called CAM-D, has died. He was 86. He is said to have died from natural causes on June 3, 2012.
Kahn had developed an AM stereo system with the Hazeltine Corporation, which competed with the Magnavox C-QUAM system for acceptance. After nearly a 20-year battle from 1975 until 1993, the FCC finally adopted C-QUAM as the standard.
Kahn's AM stereo design was later redesigned for mono operation and released as Kahn Power-Side modulation. The system decreased an AM station's signal in one sideband to reduce interference to and from other stations. This reportedly led to development of CAM-D.
Earlier in his career, Kahn worked for RCA Labs. While there, the Symetra-Peak, Volumax and Audimax were developed. Kahn was also an instructor and a Registered U.S. Patent Agent.
Kahn's wife Ruth preceded him in death. The couple had no children. His website, wrathofkahn.org, is no longer functioning.
Acceptable Use Policy blog comments powered by Disqus
[an error occurred while processing this directive]
Today in Radio History
The history of radio broadcasting extends beyond the work of a few famous inventors.
Read each issue online in our Digital Edition Format in your Web browser.
EAS Information More on EAS
The feed provides feeds for all US states and territories.
Need a calendar for your computer desktop? Use one of ours.
Information from manufacturers and associations about industry news, products, technology and business announcements.
Browse Back Issues[an error occurred while processing this directive]
Also in the March Issue
- The "And More" of Automation
- FCC Enforcement Items to Watch
- Testing AM Antennas
- New Products
- Field Report: Cloud Microphones Cloudlifter CL-1
- New Products at the 2014 NAB Show
- Side by Side: IP Codecs