ANALOG VS. IBOC:
WIL 92.3
Frequency Before IBOC
Activation After
IBOC Activation
92.0 MHz Very minor sidebands from WIL/K220HT IBOC
Sidebands from WIL
92.1 MHz Primarily
KMFC Centralia, MO Wiped
out by IBOC Sidebands from WIL
92.2 MHz Analog
sidebands from WIL Analog
and digital sidebands from WIL
92.3 MHz Center
frequency Center
frequency
92.4 MHz Analog
sidebands from WIL Analog
and digital sidebands from WIL
92.5 MHz Primarily
WKIO Urbana, IL Wiped
out by IBOC sidebands from WIL
92.6 MHz Very
minor sidebands from WIL IBOC
sidebands from WIL
This illustrates the fact that
WIL’s IBOC operation wipes out 600 kHz of spectrum space. By contrast, analog
takes up less than 200 kHz of space, and produces superior audio quality over
IBOC. The audio quality of WIL was already CD-quality before they made the
illogical step of switching to a spectrally inefficient technology that has no
technical integrity. In addition, K220HT Webster Groves, MO, relaying KTBJ 89.3
Festus, MO on 91.9 MHz, suffers from interference to the Stereo pilot from WIL’s
IBOC sidebands; the mono signal is also affected, impairing the ability of KTBJ
to perform their ministry outreach in the