DX  » Community » Reviews » Spy Bug and Camera Wireless Signal Detector Keychain (100Mhz~2600Mhz)
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  • Overall Rating: 4
  • Price: 5
  • Quality: 3
  • Ease Of Use: 4
  • Usefulness: 4
Detects just about anything emitting RF ! – Spy Bug and Camera Wireless Signal Detector Keychain (100Mhz~2600Mhz) Reviews

posted by HonestEngineer on 02/22/2010 Certified Owner

Involvement:Expert (understands the inner workings) - Ownership:more than 1 month

Pros:
This device does what it says it does. I removed the telescoping antenna and added a coil (loaded dipole, one-quarter wave) antenna to really improve the ability to pinpoint the device emitting the RF. Using a small parabolic reflector fabricated from 2024 aluminum, a stable and strong (and HIGHLY directional) antenna was made. With this modification, you can point it at a person 15 to 20 feet away and detect their cell phone etc...add some mini 50 ohm coax and put the box into your pocket - hold the parabolic antenna in your hand. Works great for a bug/phone and camera detector.
Cons:
I replaced the 'A' and 'B' pushbuttons with push-on / push-off switches - the way the device was sent, it just had cheap surface mounted membrane switches. Replacing the audible alarm with the vibrating motor from a cell phone (I bought the mini-vibrating motor from a surplus outlet) makes this a very discreet device.
Other:
Buy it, hack it and make it your own perfect bug sniffer.
Bottomline:
Recommended for anyone who likes to experiment or just wants to make sure they can find anything that emits an RF signature. Honestly, you can use it as-is and it works just fine - a few hacks/mods make it a perfect addition to your electronics tool kit!

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