Simulating RF interference (noise) to captured RF signals

1. How do you test for RF interference?
2. How do you disrupt a RF signal?
3. Which type of device can you use to detect RF interference?
4. What generates RF noise?

How do you test for RF interference?

A simple method of determining the location of electrical interference is by using a portable battery-powered AM radio tuned to a quiet frequency at the lower end of the dial. You should hear static or a buzzing sound as you get close to the source of the interference.

How do you disrupt a RF signal?

There are two basic strategies to control RFI. The first prevents it from coupling in the first place by using filters or arc snubbers at the source, relocating equipment or rerouting cables, using signal path ground isolators or adding shielding or ferrite chokes to cables.

Which type of device can you use to detect RF interference?

Detecting interference typically involves using a spectrum analyzer. Today, suppliers offer both swept-tuned and real-time spectrum analyzers (RTSAs).

What generates RF noise?

Usually, RF interference in radio receivers is caused by transmitters that propagate signals on the same frequency or same frequency band. Cordless phones, oscillating amplifiers, and baby monitors are examples of sources that produce radio interference to AM receivers.