The Department of Defense, specifically the Department of the Navy through NAVSUP Weapon Systems Support, is soliciting proposals for the repair and modification of the Receiver Transmitter, identified by NIIN 016298083. This procurement is a sole source requirement, indicating that the government lacks sufficient data to contract with any source other than the current one, necessitating Government Source Approval prior to award. The items are critical for military operations, and interested vendors must submit the required documentation as outlined in the NAVSUP WSS Source Approval Brochure to be considered. Proposals must remain valid for a minimum of 120 days following submission, and inquiries can be directed to Cody Cameron at cody.p.cameron.civ@us.navy.mil or by phone at 215-697-1202.