KE2XCC, first authorized in 1945 with the call sign W2XEA, was an experimental FM radio station located in Alpine, New Jersey and operated by inventor Edwin Howard Armstrong.
[3] Armstrong already had authorizations for two "low band" stations, W2XMN and WFMN, operating from a common site in Alpine, New Jersey, a few kilometers north of New York City.
[4] Armstrong continued to vigorously fight the pending move to the "high band" on the grounds that it was not technically needed, and also because stations operating on the higher frequencies had reduced coverage.
[13] Effective July 5, 1949 W2XEA's call sign was changed to KE2XCC,[4] and it became Armstrong's main station for developmental research and also conducted an extensive and prominent schedule of regular broadcasting for the New York City area.
[14] The last reported STA covered until February 1, 1953, and specified "Granted extension of STA for period ending Feb. 1, 1953, to suspend regular broadcasting service of WFMN and to operate Class I Experimental Station KE2XCC using its regularly licensed equipment, power and emission on the additional frequency of 93.1 mc for providing FM program service and to rebroadcast over station KE2XCC transmissions of WJLK-FM Asbury Park, N. J., WGPA-FM Bethlehem, Pa., and WNYC-FM New York.
"[15] In October 1953 Armstrong made a public demonstration of a multiplexing system that had been developed at KE2XCC, which provided for separate audio and data to be transmitted in addition to a station's standard programming.