The Department of Defense, through the Naval Sea Systems Command (NAVSEA), is seeking to award a contract modification for engineering services related to the AN/SRQ-4 Radio Terminal Set. This procurement aims to increase the contract ceiling value for additional engineering support, building on the existing contract awarded to L3 Technologies, Communications Systems - West, which involves the development, testing, manufacturing, and support of the Common Data Link Hawklink for surface combatants. The opportunity is critical for enhancing communication capabilities within the Program Executive Office Integrated Warfare Systems (PEO IWS) 5.0. Interested parties are encouraged to express their interest and capabilities within 15 days of this notice, with all submissions being at the submitter's expense. For further inquiries, potential offerors can contact Destiney Cooper at destiney.r.cooper.civ@us.navy.mil or Benjamin Smallenbroek at benjamin.m.smallenbroek.civ@us.navy.mil.