A Single-Sideband Solution
Re James V. Heck’s letter, “Why Not Put DRM to Use?” in the Reader’s Forum of the Feb. 1 issue:
It seems to me that converting to DRM might very well be the death knell
for the AM band. Remember the confusion that happened when the change was made
from analog to digital television? Consider that the same thing would likely
happen if DRM were implemented on the AM band, but this time there could be a
massive lack of interest by the general public.
The change from ATV to DTV was possible because most people want to
watch TV, but radio listening — especially AM radio — is just not a top
priority to them. Making obsolete virtually every AM radio ever made is not
necessarily a good idea. Many, if not most, people simply will not take the
time or spend the money to replace their radio receivers just to hear what is
being broadcast on the AM band in most markets today.
I suggest that perhaps converting the AM transmission system to single-sideband
with carrier would be a much better choice. Doing so would allow instantly
doubling the audio bandwidth of AM stations, and would still be receivable on
all existing AM radios.
AM/FM/TV Operating Engineer