The station was limited to a Class A status due to other nearby stations on the same or nearby frequencies.

Injection locking and injection pulling refer to the frequency effects that can occur when a harmonic oscillator is disturbed by a second oscillator operating at a nearby frequency.

Previously, several other countries have authorized temporary allocations or experimental operations on nearby frequencies.

To achieve national coverage, large numbers of domestic video recorders (which output at a nearby frequency) had to be retuned or fitted with a filter, at the bidding company's expense.

This can cause radio stations to be picked up much farther away, possibly causing interference with other stations with nearby frequencies.

Most other signals produced by the mixer (such as due to stations at nearby frequencies) can be filtered out in the IF amplifier; that gives the superheterodyne receiver its superior performance.

Like all digital radio modulation modes, PACTOR transmissions have the potential to disrupt other modes of communication on the same or nearby frequencies.

A further method used was operating transmitters for domestic radio stations on the same or nearby frequencies.

A loud beating sound results between these nearby frequencies; this is known as the "wolf tone" because it is an unpleasant growling sound.

These transmitters radiated an extremely "dirty" wide band signal which could greatly interfere with the reception of other transmissions on nearby frequencies.