John and Bill informed us yesterday that channel 2 of the 449 profiler went down. Steve, John, and Bill isolated it to the amplifier/limiter enclosure, and FedEx'd two replacements to me. I received them this morning, powered down the profiler around 10AM, swapped an amp/limiter. System was fixed and running again around 12:20PM local time. Brought system down again around 4PM local to check cable integrity inside and outside the trailer. No major issues found. System was back up around 4:30PM local.