Radio National - History

History

From 1928, the National Broadcasting Service, as part of the federal Postmaster-General's Department, gradually took over responsibility for all the existing stations that were sponsored by public licence fees ("A" Class licences). The outsourced Australian Broadcasting Company supplied programs from 1929. In 1932 a commission was established, merging the original ABC company and the National Broadcasting Service. It is from this time that Radio National dates as a distinct network within the ABC, in which a system of program relays was developed during the subsequent decades to link stations spread across the nation.

Radio National's Sydney station 2FC first test broadcast on 5 December 1923 and officially went to air on 9 January 1924. 2FC stood for Farmer and Company, the original owner of the station before the ABC took it over.

The origins of the other stations in the network were:

3AR Melbourne – 26 January 1924 "Associated Radio Company of Australia".

5CL Adelaide – 20 November 1924 "Central Broadcasters Ltd"

7ZL Hobart – 17 December 1924

4QG Brisbane – 27 July 1925 "Queensland Government"

6WN Perth – 5 October 1938 "Wanneroo"

2CY Canberra – 23 December 1938

2NA Newcastle – 20 December 1943

The first transmitters for 2FC, 5CL and 4QG were made by AWA with power output at 5 kW. They used a MT7A valve for the final high power RF stage and a MT7B for the modulator. The power supply was 12000 volts from three phase power rectified by MR7 valves.

The radio transmitters for 3AR and 2FC were upgraded to 10 kW in a contract let in 1938 to STC. The transmitters were designed by Charles Strong in London, and were notable in using negative feedback to ensure a high quality flat frequency response.

From 1947 until the mid-1980s, "Radio 2" (as it came to be known) was broadcast to the major metropolitan centres, with a large broadcast footprint in adjacent areas due to the powerful AM transmitters in use. It contained most of the ABC's national programming.

The power level of 2FC 3AR and 5CL was upgraded to 50 kW in the early 1950s. The transmitters for these were housed in the same building as the radio 1 network. They were manufactured by STC. The final stage contained three parallel 3J/261E air cooled triodes running in class C amplifier at 90% efficiency. These were driven by a class B modulator with the same type of valves.

In the 1970s, the network's program format began to take on a more serious tone, a style which continues to this day. Art critic Peter Timm later remarked that the network is "virtually the only non-print media forum for art in this country."

In the early 1980s the broadcast footprint was extended with the construction of the first of over 300 regional FM transmitters (including community re-broadcast sites). In 1985, the ABC renamed "Radio 2" as "Radio National".

Since 1990, all Radio National stations have had the same callsign format, Radio National preceded by the appropriate number for the state or territory, sometimes followed by the locality (e.g., "2RN Sydney", "3RN Melbourne").

As a result of cuts in the 1996–97 budget, Radio National was hit with a reduction of a million dollars in its funding, with a significant impact on programming.

In January 2012 Radio National was rebranded as RN, partly in recognition of the stations growing digital audience. RN has also been used as shorthand for the station's name by many presenters going back several years. The stations tagline, which has changed regularly over the years, was also changed to "Your World Unfolding" to mesh with the stations new logo and viual identity.