Electronics Manufacturers

• Advanced RC - Servo Tester, etc.
• BNB Products - Digital power recorders
• Eagle Tree Systems - Seagull Wireless Telemetry
• Siruis Electronics - chargers

Electronic Model Locators / Trackers

• LoMA (Mr.RC-CAM) - Audible LMA using a PIC12C508(A)/509(A)
• Lost Model Alarm (TugBoat) - Audible LMA using a PIC12F629/675
• A LoMA hack using a "jogger alarm"
• The "Dollarama Special" (Cats Eyes - i.e. me) - An LMA using an "entry alarm"
• KeyRinger - A commercial "lost stuff" alarm
• GWS Be-Found Aircraft Beeper - Commercial LMA

• "Beeping" Tracking Transmitter Kit
• 4-Transistor Tracking Transmitter
• Mini Tracker
• Pointer radars for pets - Commercial pet tracker
• Walston Retrieval System - There seems to be very little information about this system on the web! See also here.
• Rocket Hunter - Model rocket recovery system

• LoMA: Worlds Simplest Lost Model Alarm
  LoMA: World's Simplest Lost Model Alarm, Only three parts!
• All Is Lost - where this all (sort of) started!
• Things I have learned from loosing my plane - Some discussion of LMA's