If a neighbour reports television interference on one or two channels only when you transmit on 15 metres, what is probably the cause of the interference?

What is meant by harmonic radiation?

Why is harmonic radiation from an amateur station not wanted?

What type of interference may come from a multi-band antenna connected to a poorly tuned transmitter?

If you are told your station was heard on 21 375 kHz, but at the time you were operating on 7125 kHz, what is one reason this could happen?

What causes splatter interference?

Your amateur radio transmitter appears to be creating interference to the television on channel 3 (60-66 MHz) when you are transmitting on the 15 metre band. Other channels are not affected. The most likely cause is:

One possible cause of TV interference by harmonics from an SSB transmitter is from "flat topping" — driving the final amplifier into non- linear operation. The most appropriate remedy for this is:

In a transmitter, excessive harmonics are produced by:

An interfering signal from a transmitter is found to have a frequency of 57 MHz (TV Channel 2 is 54 - 60 MHz). This signal could be the:

Harmonics may be produced in the RF power amplifier of a transmitter if: