Fixed a weird TK-takie issue

[Victorbrav0]

TLDR; Dont use cheap sd cards.

I was building several tk talkie units at once for a group of friends and I bought a bunch of cheap sd cards in a pack of 10. After each talkie was wired, programed, and powered, the sound that came out was really high pitched.

I troubleshot everything and noticed when I stole an sd card from a talkie unit from a helmet that worked, the were no issues and when I slotted one of the bulk sd cards in, problems.

Once I bought quality sd cards (kingston) I had every talkie unit working perfectly.

Just figured I'd share my troubles so if someone else has this issue they'll find this post before they troubleshoot as long as I did.