Henderson Hall encompasses 22.3 acres of land located in Arlington, Virginia. Since 1943 the facility provides barracks and support for Marines assigned to Headquarters, U.S. Marine Corps as well as certain schools and agencies within the Washington, DC Metropolitan Area.   The Hall was named for the 5th Commandant Archibald Henderson.

Licensed in 1948 by then Captain (later Colonel) Sanford B Hunt as W4NTR the station became known as the "Granddaddy of USMC Stations".   It's roster of operators rings like a "Who's Who" of Marine Corps Amateur radio.  MSgt Fenton Martin; GySgt James Irwin; 1st Sgt Kin Boso; Sgt John Littleton, CWO Joe Van Brocklin, CWO Gus Ponstingel; MSgt Wes Armstrong; MSgt Wes Wilson; GySgt Wayne Justis; SSgt Doug Thomas and many more.  

The station received call N0ASM from the Navy-Marine Corps MARS system in 1962 and was subsequently designated NAV2.  The 1970 renaming gave it the MARS call N0MHH. With the decline of traffic after the Vietnam War, Doug Thomas was given the sad duty of shutting the station down.

W4NTR is no longer assigned. N0ASM is now the vanity call of Arnold S Miller, former KG4YIS.  N0MHH has been assigned to Dale E Bailey.

Fifth Commandant
17 October 1820 - 6 January 1859