KYKY: Analog vs. IBOC

Frequency Without IBOC With IBOC

97.8 MHz Analog sidebands from KHZR Wiped out by digital sidebands from KYKY

97.9 MHz KICK Palmyra, MO (occasional) Wiped out by digital sidebands from KYKY

98.0 MHz Analog sidebands from KYKY Analog and digital sidebands from KYKY

98.1 MHz center frequency center frequency

98.2 MHz Analog sidebands from KYKY Analog and digital sidebands from KYKY

98.3 MHz WRAN Tower Hill, IL (occasional) Wiped out by digital sidebands from KYKY

98.4 MHz Analog sidebands from KTJJ Wiped out by digital sidebands from KYKY

98.5 MHz KTJJ Farmington, MO (semi-local signal) KTJJ Farmington, MO (good signal)

In this case, KYKY is a class C1 station; the IBOC sidebands will cause interference to the signals of KHZR 97.7 Potosi, MO and the aforementioned KTJJ in areas close to KYKY’s transmitter site (an area from Richmond Heights in the north to Arnold in the south). Their signals will have a tendency to cut in and out in these areas. This cuts off all fans of Contemporary Christian music to access to a full-time radio station carrying this type of music in these areas. KHZR does have a CP to upgrade to Class C2; this will likely be ineffective in combating interference from KYKY’s digital sidebands.