Problems at Radio Station W4OTN

I've been having problems with my radio station lately and it has really started to bother me. I've used two antennas and haven't been satisfied with either one of them. Before I was using a 40-80-160 dipole but the 80m portion was too long and didn't want to work right being near the 40/trapped 160 legs. Then a friend (KN4KL) let me borrow a Carolina Windom. I don't think I ever got it working right either. Probably because my yard isn't that big and I end up not being able to string it up straight.

I think there is a short somewhere, though, as my receive audio comes and goes and I've been told that my transmissions are the same way; one second they are there the next second no one can hear me.

Anyone got any suggestions?