I am reasonably happy with my OAWA3. It is a great way to get sound out of doors. The only problem I am having is that it will drop off for a fraction of OR a few seconds and the come back. (light goes to red and then right back to blue.) I have placed the receiver at various distances from the transmitter and it does not seem to make much difference 20 feet with one interior wall and 50 feet with wall and glass and 50 feet with 2 walls. I have 2 OAW3s for other purposes and they seem to have no problems getting the signal from my computer to my preamp through the same obstacles. Any ideas?

Try a different frequency using the switch on the side. It only varies by a little but it might help.