E4E - Amateur Practices

What problem can occur when using an automatic notch filter (ANF) to remove interfering carriers while receiving CW signals?

Which of the following types of noise can often be reduced by a digital noise reduction?

Which of the following types of noise are removed by a noise blanker?

How can conducted noise from an automobile battery charging system be suppressed?

What is used to suppress radio frequency interference from a line-driven AC motor?

What type of electrical interference can be caused by computer network equipment?

Which of the following can cause shielded cables to radiate or receive interference?

What current flows equally on all conductors of an unshielded multiconductor cable?

What undesirable effect can occur when using a noise blanker?

Which of the following can create intermittent loud roaring or buzzing AC line interference?

What could be the cause of local AM broadcast band signals combining to generate spurious signals on the MF or HF bands?

What causes interference received as a series of carriers at regular intervals across a wide frequency range?

Where should a station AC surge protector be installed?

What is the purpose of a single point ground panel?