Five (5) years of experience in the maintenance and repair of the SURTASS PROCESSING SUBSYSTEMS which includes: ICP, UNIX based processing systems, LINUX, Windows, GCCS-M, GPS (Commercial and MIL-STD) & SURTASS COMMS SUBSYSTEMS which includes: SHF, UHF SATCOM and LOS, HF, IFF, SECURE VOICE and DATA CRYPTOs, CMS, EKMS, KMI, SIPRNET, ADNS/CFCP, SIPR and NIPRNET. · Fours (4) years of experience in the maintenance and repair of SURTASS ARRAYS which includes: TL-29A Twin-line, Low Frequency Active (LFA), Compact Low Frequency Active (CLFA) and High Frequency Marine Mammal Mitigation Sonar (HFM3).