Moved SUS ITMY Sattelite Rack to southwest corner of ISI cleanroom. H2 ISI ITMY field cables were re-routed to move excessive wire bundles out of clean room area. Swapped out cabling for appropriate lengths (GS-13, T240, L4C, and CPS). Ran cabling inside clean room while staying clear of floor. H2 SUS ITMY sattelite amplifiers were swapped out. Modifications to units are: 1.Replace IC551 & IC552 AD797's with OP27's 2.Replace L101, L201, L301, & L401 with 100 ohm resistors 3.Remove C107, C207, C307, & C407 capacitors. 4.Replace R102, R202, R302, & R402 160k resistors with 121k resistors R. McCarthy, F. Clara, J. Garner, D. Stone