AB5SS will kickoff a T-Hunting event for the club on May 12. He’s found a very useful Direction Finder project kit, called the HANDI-Finder, which utilizes a simple CMOS oscillator to continuously switch your Handheld FM radio between two small wire loop antennas made from wire coat hangers. Due to this phase-difference detection scheme, by adding a small handle and turning it, a very sharp positional null can used to help one locate a signal’s direction. It’s a perfect small project for T-Hunting. The current pricing is $27.95 +$6 shipping which is a nice sweet spot for a DIY project.
I just got the kit online and here are a few pix of the build up.
If you go for it, order NOW since it takes about 2 weeks for delivery. The kit come together without issue, but depending on your junk box, you might need some help with some stiff wires for a loop antenna and also some coax line and connector to your HT radio. You’ll also need some type of cheap handle- broomstick, roller paint holder, stick, etc. Several of us in the club will gladly help anyone who needs any help and the extra parts just mentioned.
Check out handy-finder.com