The following jammers have been owned and used by Hans Sundgren. They have not been used in any illegal or immoral way.

TV-B-Gone® Pro SHP

Image courtesy: tvbgone.com

Technical data

  • IR transmitters: 8
  • Operating range: Up to 100 m
  • Codes: TV power-off codes for North America and Europe, covering well over 90% of all TVs in the world
  • Power: Rechargeable battery
  • Dimensions: 118×64×13 mm
  • Weight: Xxx g

August 2011

Hans is interested in intercepting all kind of wireless technique. He intends to build his own IR device but discovers this ready-built unit that can turn off a TV from distance.

He buys the unit for 50 USD from Cornfield Electronics using PayPal.


  • Easy to use
  • Nice camouflage in the form of a smart phone


  • xxx
  • xxx.
Car lock jammer
Door bell set

Technical data

  • Frequency: 433 MHz
  • Power: 10 mW?
  • Operating range: Up to 5 m
  • Codes: xxx
  • Power: 12 DC battery
  • Dimensions: 92×42×20 mm
  • Weight: 50 g


  • None

November 2005

Hans wonder if an inexpensive wireless door bell transmitter might disturb modern wireless car locks. The answer is yes! The transmitter in this unit sends a broad signal blocking the ordinary key when it uses the public frequency 433 MHz.

He buys a wireless door bell set for only 99 SEK at Rusta. The set includes both the door bell and the transmitter, including its 12 V battery.


  • Easy to use
  • Long battery life-time, still works after 10 years.


  • Plastic cover becomes yellow after 10 years
  • xxx.