Nice DIY, Dom. How about tuning the antenna for resonance?
That component that you soldered the wire to isn't the antenna.
That component is the crystal or ceramic oscillator chip. Almost
all car remotes work on the UHF frequency band so they’ll use a
loop type. antenna. Think of it as a small version of the old UHF
loop antenna on TV's.
View attachment 63391
I don’t think you can solder anything to this antenna loop without
detuning the oscillator circuit.
far out, radio skull funnel!I was skeptical at first but it works.. heres a trick to try for yourselves if you think Im crazy. If you find yourself out of reach hold the key fob under your chin ( I tuck it in behind my chin above my adams apple) and TAH DAH.... I guess the theory is your skull acts as a funnel/ amplifier of the signal... I use it all the time and it works !