time to jinx myself.
--3" pvc pipe approx 4 feet long,
--3" toilet flange (easier to mount tweeter to)
--a tweeter from some old speakers you would toss behind a standard cab bench seat. speaker also has 6" speaker in it
--i left the resister in the speaker that was in line with the tweeter, did not fell like cutting the wire all the way out vs just taking off the slip on wire terminal
--i initially removed the cone from tweeter. but then decided to much hassle to cut some cardboard to mount the speaker. and grabbed the toilet flange above.
--some duct tape
--all i had was some 100mps Ethernet wire to use as speaker wire that was long enough to reach outside, cut the rj45 jack ends off and used the wire.
--stereo/receiver approx 80amps on given single channel i hooked up to.
--played some mp3 files for high pitch dog sounds (no idea if they even worked)
--waved the contraption around like a bozo for a couple minutes in general direction the chirping was coming from birds just kept on chirping *feeling defeated*
--radio station that was not coming in "mostly static but could still hear some music coming through as receiver tried to lock on to station" i was having difficulty hearing sound from tweeter a tad afraid i might ruin receiver do to i did not include the resister inline or blow the tweeter. but *shrugs* still all working.
--waved the contraption around like bozo again for 1 to 2 minutes
--quickly there after robin went bye bye, along with the other birds.
--has been quite ever since for most part.
to lazy at moment to test, but came across how to test if high pitched above human hearing sounds worked or not, "hold a flame in front of the pipe, and the flame should move some"