Channel 83 was removed from television use in 1982. The highest frequency to have been used for NTSC-M terrestrial TV broadcasting, it was formerly used by a handful of television stations in North America which broadcast on 884-890 MHz. In the United States, channels 70–83 served primarily as a "translator band" for low-power repeater transmitters filling gaps in coverage for existing stations. Many are defunct, with the few still in existence now moved to lower frequencies:CFQC-TV rebroadcaster CFQC-TV-3 Richmond Lake, Saskatchewan is no longer on the air. KARE rebroadcaster K83AE Redwood Falls, Minnesota moved to K68BJ channel 68. KLBK-TV rebroadcaster K83AQ Matador, Texas moved to K47GE channel 47. KHQ-TV rebroadcaster K83AJ Quincy, Washington moved to K48BY channel 48 KOAT-TV rebroadcasters K83BK Carrizozo, New Mexico moved to K43BT channel 43 and K83BL Montoya-Newkirk moved to K57BR channel 57. KPNX rebroadcaster K83AC Globe, Arizona moved to K61FB channel 61. KRDO-TV rebroadcaster K83BP Deora, Colorado moved to K49BT channel 49. KRQE rebroadcaster K83AB Santa Rosa, New Mexico moved to K38HR channel 38. KSAT-TV rebroadcaster K83BO Uvalde, Texas moved to K65EQ channel 65. KSL-TV rebroadcaster K83AF Delta, Utah moved to K39FR channel 39. KTTC rebroadcaster W83AH La Crosse, Wisconsin moved to W67CH channel 67. KUED-TV rebroadcasters K83BB Duchesne, Utah moved to K03CN channel 3, K83BD Marysvale, Utah moved to K46FX channel 46 and K83BC Virgin, Utah moved to K25HB channel 25. WXXW-TV had used a small channel 83 rebroadcaster from 1965 to 1972. The main channel 20 transmitter moved to the Sears Tower once that building was completed in May 1973, rendering the fill-in repeater signal unnecessary. A RadioShack device, the Multiple Video Distribution System, was marketed in the early-1980s with the capability of block conversion of up to three independent RF modulator signals from VHF channel 3/4 for home viewing on any of channels 74/75, 78/79 and/or 82/83 - channels which remained unused in most markets. Later versions of the product were forced to lower frequencies by the removal of UHF channels 70-83 from television receivers after 1982.