J. Kissel, J. Warner

Jim and I went to B&K hammer EX’s PCAL periscope this afternoon and came across a new bug I hadn’t seen before: the hammer channel’s BNC input spigot was constantly red while connected, and after activating a known functional template (which showed the 3-axis accelerometer working as normal), the hammer’s sensor input bar was flashing red and reporting that it was saturating / overloaded. However, between the ~1sec cadence flashes, you can see the glimpses of a normal hammer behavior. We tried:
	- Power cycling the satellite box
	- Closing and re-opening a known functional template (and a different template)
	- Physically disconnecting the hammer from the satellite box, (the spigot stays red — but that happens normally when a sensor is disconnected)  and reconnecting it
	- Swapping out the hammer’s B&K BNC with a normal BNC
	- Shifting all of the inputs down by one (doesn’t work at ALL! Sad… why have 6 channels then?)
	- Clearing and Re-selecting the hammer species in the template (8206-003)
	- “Clear and Detect Hardware” in the Hardware setup
	- Physically disconnecting the hammer’s accelerometer from the head and reconnecting it (grasping at straws … )
	- Changing the input gain on that channel in the template’s hardware properties (really grasping for straws… )

Attached are pictures of the satellite box in error, and the activated template in error.

I've got emails out to the experts and we'll continue to debug the hardware outside of the clean room, but this may mean we forgo B&K hammering of this periscope.