The IF is 455 kHz. If the radio receiver is tuned to 855 kHz, the local oscillator frequency is _______________? December 20, 2018 – by admin The IF is 455 kHz. If the radio receiver is tuned to 855 kHz, the local oscillator frequency is _______________? A. 455 kHzB. 1310 kHz C. 1500 kHz D. 1520 kHz