Product Leader Communications Security (PdL COMSEC) has approved and authorized the Simple Key Loader (SKL) User Application Software (UAS) Version 13.0 for use on the AN/PYQ-10(C) SKL.
However, SKL UAS Version 13.0 is not authorized for use on SKL hardware version V1 devices (serial number range 1–20,000 and any 700,000 series), per CECOM MAM 2016-08-017.
KOV-21 card firmware (FW) must be updated to the latest version 4.01 according to CECOM MAM 2017-08-015.
Also, the UAS Army baseline has changed for all SKLs. The new Army approved baseline is UAS version 12.0. SKL UAS versions earlier than 12.0 aren’t authorized and won’t be supported.
CECOM-MI-20-05018 was sent to the Logistics Data Analysis Center (LDAC) and was posted October 7, 2020. It covers the new software upgrade 13.0 for AN/PYQ-10 (C), SKL, NSN 5810-01-517-3587, and AN/PYQ-10A(C), SKL, NSN 5810-01-644-4375, LIN C05002.
For questions regarding message CECOM-MI-20-05018, contact the CECOM MWO office:
Maintenance advisory messages (MAMs) or maintenance information messages (MIMs) about key software or major hardware upgrades, or certain ancillary items, are now sent to LDAC. Posting MIMS/MAMs via LDAC is quicker and more efficient than sending a memo directly to commands, where they may be lost or misplaced and the information doesn’t reach the users in the field. Full messages are available in the MMIS Safety and Maintenance Message Library, accessible through the AESIP Portal:
The Communications Security Logistics Activity (CSLA) maintains MIMs/MAMs back to 2014. For SKL questions, contact the SKL help desk listed below, any IT radio LAR, or email Randy Cline, CECOM CSLA equipment specialist at:
Contact the SKL helpdesk for assistance downloading firmware and software, DSN 312-648-2119, (443) 395-2119, or email:
For software and training, visit the LandWarNet website: