This book is primarily a container for documenting the various microcontroller boards and associated power supplies.
antenna 1f lost pointing
Rick pointed out to me that antenna 1f has recently lost its pointing. Turns out that one pennant from both pols had fractured from the tip. I installed our field wire dressing to the tip circuit board. Rick reports that pointing is much better now, with a small amount of skew.
Principal Electronics Technician
Hat Creek Radio Observatory
Rick reported to me today that antenna 1b had no spectral response to xm satellite with the y pol. I investigated this, and determined that the problem is in the Y pol LNA, and not a problem with the pax.
Ant 2c 080204 This antenna reportedly lost communication over the week-end. There were reports of a rodent, and a Magnetic reset. I inspected for rodent remains etc, and Performed a magnetic/AC reset. Antenna is back Online. I will continue to monitor for possible intermittent failure.
Ant 2a 080125 Elevaton brake reporting no current. Problem turned out to be the monitor circuit on the Relay Card. The circuit was reporting no current when there was brake current present. Isolated problem to the ralay card, and replaced bad card with a pre-tested relay card. Tested and returned to service.