and from 5.30pm to 10pm weekdays, 5.30am to 11pm Saturdays and 9.00am to 10.00pm Sundays. 2CK was closed down after a fire burnt the studios down late one night after the announcer had finished the station's transmission for the night at 10pm, and left in a rush for his bus back to Maitland, leaving the electric heater on. 1937-1950s - 2HR Singleton/Maitland The Upper Hunter had its own station based in Singleton, 2HR, owned by Hunter River Broadcasters Pty. Ltd. The station launched on 30 August 1937. The owners included the Singleton Argus and the Robinson family. Three years later, they moved to Lochinvar, near Maitland. 1954-1980s - 2NM Muswellbrook / 2NX Newcastle Hunter Broadcasters had purchased the two stations during the early to mid-1950s, and decided to move both stations away from their existing locations. The 2HR license and transmitter was moved to Bolwarra, in order to serve the Newcastle market. 2HR was given a new callsign, 2NX. The 2CK license and frequency was moved to Muswellbrook, and also received a new callsign, 2NM. The callsigns were devised by station manager Ken Robinson, who had served in the Australian Army. His army identification number included the letters NX. Therefore, the Newcastle station was given the 2NX name. 2NM's callsign was created only after trying out other combinations that could smoothly follow 2NX. 2NM could also represent 2 Newcastle Muswellbrook. 2NM was launched on 14 January 1954, from facilities located along the McCully's Gap road just outside Muswellbrook. In 1971, Hunter Broadcasters were taken over by Catholic Broadcasting Company, a division of the Catholic Archdiocese of Sydney. During this time, while during the day 2NX and 2NM were operated separately, from 6pm overnight, 2NM relayed 2NX's programming, and was identified as 2NXNM and as Upper Hunter 2NX. In 1978, the station moved from 1460 to 1458 kHz, as part of a nationwide radio frequency adjustment. Two years later, on 2 August 1980, 2NM changed its frequency again from 1458 kHz to 981 kHz to improve reception in parts of the Upper Hunter. A new 5000 watt transmitter site was commissioned on Begalla Road, next to the Bengalla coal mine. The old 2NM tower on McCullys Gap Road was not torn down until 2009. The old transmitter building still stands to this day. 1458 kHz was reassigned as the Newcastle frequency for ABC NewsRadio. The overnight simulcast of 2NX came to