[BC] AM Fidelity vs FM fidelity

[Kevin Raper]

On Jun 21, 2012, at 10:26 AM, Robert Meuser wrote:

>A long time ago I built a station to be the highest possible fidelity. We bought a very expensive professional receiver as an air monitor connected to a commercial AM loop antenna. We quickly learned that even10 kilohertz audio response from a 50 Kw station on a clear channel was not practical even though the studio was within the 100 MV/m contour.

When WLW was on the 50 KW Cathanode Transmitter, Macintosh Labs in New York measured it as having Audio Frequency Response better than + - 1db from 20 Hz to 20 KHz Later they converted that transmitter to conventional Plate Modulation and it is still on site in Cold Standby.

73,
Kevin Raper
KJ4HYD
CE WCKI WQIZ WLTQ