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experimenters, although this was a minor part of their business. The station was established on the roof of the
Wentworth Hotel and both were involved in transmission and reception from the station. A major fire started in the station's equipment room in 1912 destroyed the valuable wireless facility. Only concerted action by the fire services prevented the fire spreading to the hotel proper. The station was not re-established prior to the commencement of
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was in the 3~30 MHz HF band), or for over-water attenuation if the working was not via ionospheric reflection. Adding in a reasonable 20 dB extra loss, the signal level would be well below 0.5 microvolts, a challenging level for modern radio receivers. While heterodyne detection of Morse Code is a known strategy for weak signal detection, the claim would need independent verification to be upheld.
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Note: A Path Loss calculation shows, for a transmission frequency of 3.5 MHz, a loss of some 110 dB (some 10^–11) over the approximately 2000 km path, implying a received power level of some 3.7 x 10^–14 watts. This calculation does not account for losses due to ionospheric reflection (if the working
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The electrical engineering firm of
Maclurcan and Lane was issued an experimental licence in 1910. The principals of the firm were Charles Dansie Maclurcan and his brother-in-law Cyril Herbert Dodson Lane; Both were wireless experimenters and the firm traded with other Sydney area wireless
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Maclurcan received over 2,000 letters from listeners who had heard his initial transmissions. 2CM was also the first station to publish a program guide. Each day’s broadcasting ended with the invocation:
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was an experimental
Australian broadcasting station operated by Charles Dansie Maclurcan. In 1921, 2CM became the first Australian station to regularly broadcast music and talk. (However,
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Note on reverse of QSL card, Charles congratulates Max on first successful two way telephony contact between
Australia and England, February 1925
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Maclurcan broke numerous long-distance broadcasting records, including an O.0037 watt transmission, that was recorded as being heard in
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379:. No. 1515. New South Wales, Australia. 31 January 1915. p. 3 (ISSUED AS A SUPPLEMENT WITH THE "SUNDAY TIMES")
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291:, immediately following Sir Ernest Fisk. Maclurcan also designed and built the popular Maclurcan radio receiver.
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2CM was issued with the first broadcasting licence in
Australia (Licence No.1, signed by Prime Minister
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CBD, but after the war, Maclurcan built a new installation at his home in the Sydney suburb of
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234:. At this time, the station was situated at the Maclurcan family’s Wentworth Hotel, in the
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407:. No. 485. New South Wales, Australia. 18 January 1912. p. 7 (FINAL EXTRA)
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230:. It is believed that he was the only Australian amateur allowed to operate during
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351:. No. 1297. New South Wales, Australia. 27 November 1910. p. 7
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The call sign 2CM is the only one listed by the
Federal Government as
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Blank QSL card from VK2CM Charles
Maclurcan to VK3BQ Max Howden
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when all experimental licences were revoked for the duration.
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http://bpadula.tripod.com.au/australshortwave/id34.html
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did conduct an isolated experiment in which music was
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don’t forget to wind up the clock and put out the cat
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211:In 1921 2CM commenced broadcasting Sunday night
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175:In some quarters Maclurcan has been called
18:Radio station in New South Wales, Australia
415:– via National Library of Australia.
387:– via National Library of Australia.
359:– via National Library of Australia.
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219:band (214 kHz.), using seven watts.
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287:Charles Maclurcan was President of the
467:Radio stations disestablished in 1924
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313:History of broadcasting in Australia
457:Defunct radio stations in Australia
462:Radio stations established in 1921
269:recognised, on 23 November 1923).
265:was later the first station to be
166:Amalgamated Wireless (Australasia)
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177:Australia’s leading radio amateur
128:until 21 February 1924; later on
289:Wireless Institute of Australia
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323:Timeline of Australian radio
164:(later Sir Ernest) of AWA –
280:2CM was transferred to the
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284:band on 21 February 1924.
427:Australian Radio History
308:History of broadcasting
77:Charles Dansie Macluran
261:,) in December 1922. (
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318:Oldest radio station
296:never to be reissued
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105:Former frequencies
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238:district of the
215:concerts on the
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411:29 September
409:. Retrieved
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381:. Retrieved
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353:. Retrieved
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399:"CITY FIRE"
244:Strathfield
236:Church Hill
232:World War I
224:New Zealand
206:World War I
162:Ernest Fisk
61:Language(s)
56:Programming
451:Categories
371:"WEDDINGS"
343:"WIRELESS"
329:References
282:short wave
267:officially
217:long wave
170:broadcast
138:Call sign
130:shortwave
69:Ownership
39:Australia
302:See also
259:) Hughes
124:: Sydney
113:Longwave
183:History
151:acluran
147:harles
140:meaning
94: (
82:History
64:English
240:Sydney
51:Sydney
31:Sydney
257:Billy
74:Owner
413:2020
385:2020
357:2020
226:and
96:1921
92:1921
263:2SB
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158:2CM
121:kHz
118:214
22:2CM
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149:M
145:C
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Text is available under the Creative Commons Attribution-ShareAlike License. Additional terms may apply.
