Thank you for replying dboomer,

      The batteries I always change before a show, I usually get at least 2 - 4 hrs of practice afterwards out of them so I would approximate 6 - 8 hrs use.  I have never had the batteries go out on me before I change them.

The TB12 never shows red, its the 3 meter indicators on the G90 that go red (all 3) until it cuts back on.

I tried the tuner out as suggested by another thread. When I did that It was noisy, It was not a clear sound like the regular 1/4 out. Haven't had time to get a xlr to 1/4 to try that out yet.

When I play out it is always on my strap, I have  tried the straight cable that came with the unit and I bought a angle mini to 1/4, had the problem with both at times.

The G90 is mounted in a 4 rack skb ABS plastic case, antennas touch no metal. But I do have my AMP a GBE750 ( 2 spaces) on the bottom, I put my Furman power conditioner above the amp (1 space) and I mounted the G90 in the top space ( 1 space) .