So I have had my 500 EXP since June and absolutely love(d) it for my now 8 month old blf. On Monday I was out pheasant hunting and going through a lot of thick early season cover and an hour into my hunt reached for the transmitter which was in my TT holster on my hip but it was gone and the strap on the holster was unsnapped. I am sure that some of the brush snagged the strap and it fell out so I have spent the entire week looking but have not been successful. Any recommendations (cheap) on replacing the transmitter only? Thanks for any advice recommended.