NØSS is the Memorial Call Sign of the Mid-Mo Amateur Radio Club located in Jefferson City, Missouri. It was previously held for many years by Thomas S. Hammond, longtime member and trustee of the MMARC, and internationally known contester, DXer, builder, designer, Elecraft beta-tester, and trusted friend to thousands.

Following Tom's death on August 4, 2011, the club acquired the call as its vanity call sign with the blessing of his widow, Jeri Hammond, KØRPH. "NØSS" will be employed for Field Day and Special Event affairs.