Table of Contents
Advertisement
turn on the attenuator of the receiver.
Explanation
Intermodulation
Some radio waves with different frequencies are frequency-converted due to the
antenna multi-coupler, arrester-diodes and the non-linearity of amplifiers and mixers
in the receiver. This frequency-converted radio wave equal to the receiving frequency
and interferes the reception. This phenomenon is called intermodulation. For example,
assuming that the receiving frequency fn is 3855 kHz, and other strong interference
wave fu, is 3925 kHz, f'=2fu,
- frr. If fu, , in which a relation of 3855 kHz=7850
kHz - fu2 exists (in this case, 3995 kHz), is very strong, the mixed signal of 3925 kHz
and 3995 kHz will be heard through the receiver which is set to 3855 kHz.
- 2 4 -
Advertisement
Table of Contents
