How can you prevent key-clicks?

If someone tells you that signals from your hand-held transceiver are interfering with other signals on a frequency near yours, what may be the cause?

If your transmitter sends signals outside the band where it is transmitting, what is this called?

What problem may occur if your transmitter is operated without the cover and other shielding in place?

In Morse code transmission, local RF interference (key-clicks) is produced by:

Key-clicks, heard from a Morse code transmitter at a distant receiver, are the result of:

In a Morse code transmission, local RF interference (key-clicks) is produced by:

Key-clicks can be suppressed by:

A parasitic oscillation:

Parasitic oscillations in the RF power amplifier stage of a transmitter may be found:

Transmitter RF amplifiers can generate parasitic oscillations: