Did you know...
The most commonly jammed frequencies worldwide are the short range open, unlicenced frequencies and particularly in the 400mHz – 433mHz band which is used in many countries.
This frequency, which is considered the most congested and overcrowded frequency in the world, is used in:
Wireless intruder alarm systems, Remote arming keyfobs, Wireless Panic switches, Gate and Garage door automation, Remote controlled cars and Baby monitors.
As this frequency is generally open and unlicenced, it can be used by anyone for anything.