# History of wireless telegraphy and broadcasting in Australia/Topical/Biographies/Ross Raleigh Davis/Notes
## Ross Raleigh Davis - Transcriptions and notes
### 1920s
#### 1920
##### 1920 12
#### 1921
##### 1921 12
#### 1922
##### 1922 06

Brief biography for Davis
   THE MAGIC SPARK. Radio News for Amateurs. OUR YOUNGEST EXPERIMENTER. BY DOT DASH. The youngest experimenter in New South Wales is Jack Davis, aged 14, a Sydney Grammar School lad, who has an up-to-date station at Rose Bay. Nearly two years ago he obtained a Government crystal license and started experimenting with a crystal set, meanwhile studying the theoretical side of the science. His progress was rapid, and in a few months he applied for and was granted a license to use a valve. Practically all the apparatus he uses was made by himself, including a loud speaker. With a single valve and honeycomb coils, Jack has done some fine long-distance work, copying most of the American stations. He can read the code at the rate of 18 words a minute. Of all the Sydney experimenters, Jack was the only one who picked up the S.O.S. call from the sinking schooner Helen B. Stirling.

##### 1922 12

Davis included in a list of amateurs in Wireless Weekly
   AMATEUR CALLS. NEW SOUTH WALES. The following is a list of Licences issued to amateurs in the State of New South Wales to the end of October, 1922:—
   Call Signal. Name. Address. Nature of Licence. . . .
   2DS E. R. Davis, "Aiscourt," Black St., Vaucluse, Sydney R. . . .

#### 1923
##### 1923 05

Maclurcan advises Wireless Weekly of measured strengths of amateur broadcast stations, including Davis' station 2DS
   Logs of Amateur Transmitting Stations.
   Call Strength by audibility meter max 1000, Wave length, Hum, by ad. meter max 1000, Modulation perfect 10, Dist. miles from 2CM, Name
   2BB .. .. 210 360 3 8-9 4 Crocker
   2JM .. .. 70 408 30 8-7 9 Marsden
   2LI .. .. 34 407 — 8 8 Radio College
   2DK .. .. 300 395 — 6-7 4 Whitburn
   2DS .. .. 23 375 9.7 7-8 9 Davis
   2IX .. .. 500 380 — 8-9 1 Burwood R.C.
   2FA .. .. 11 360 8.7 4 3½ Colville
   All measurements on detector valve. These logs were compiled on Mr. Chas. Maclurcan's Station, Strathfield, using 1 detector valve only. Transmitters have to thank Mr. Maclurcan for the large amount of time he has devoted to compiling these records. Most of the logging is of recent date, but Mr. Maclurcan informs me that readings taken during the last few days show improvements in one or two stations.

##### 1923 06

Davis participates in a test with New Zealand, but his receiver unable to tune the higher frequencies on which Ortell was operating
   SUCCESSFUL TEST. A very successful test was carried out by Messrs. J. Davis, 2DS; R. C. Marsden, 2JM; Macintyre, 2VX, and Mr. Ortell, of Christchurch, N. Zealand. On Sunday morning both Mr. Davis and Mr. Marsden transmitted on C.W. which was heard strongly in Christchurch by Mr. Ortell. Mr. Ortell replied and was read faintly by 2DS. Neither 2JM or 2VX were able to tune low enough to get Mr. Ortell's transmission.

##### 1923 07

2DS, at Croydon Radio Club meeting, transmits a message to 3BY in Melbourne
   CROYDON RADIO CLUB REPORT. The last meeting of the Croydon Radio Club was held at "Rockleigh," Lang St., Croydon, on Saturday, July 7th, when there was a fair attendance of members. Correspondence was received from Mr. Trevor Watkins, of Tasmania (7AA is his call sign), who wished to carry out tests in telephony and C.W. with the club at some future date. Mr. Lees, a member of the Club, had been in Melbourne during the week, and visited the station of Mr. Holtz (3BY) who also wished to carry out tests with this Club. Mr. Hull, of Melbourne, expressed his willingness to test with the Club. After this the members dicussed the question of the Band of Wave Length, which are to be allowed to experimenters. Strong C.W. was received from Mr. Holtz (3BY) at 9.30 p.m., using one valve. 2DS (Jack Davis) transmitted the message back to Mr. Holtz from the Croydon Radio Club. American stations were heard quite loudly, using loud speaker and one detector valve and two audio. All communications in connection with the Club should be addressed to G. Maxwell Cutts, "Carwell," Highbury Street, Croydon.

##### 1923 10

Davis included in the Wireless Weekly amateur broadcasting weekly roster
   Roster for Week ending 17th October, 1923.
   7.30 to 8.0, 8.0 to 8.30, 8.30 to 9.0, 9.0 to 9.30, 9.30 to 10
   Thur, Oct. 11, 2FA 250, 2GR 390, 2RA 220, 2JM 236, 2LO 237
   Friday, Oct. 12, 2LO 237, 2JM 236, 2ER 200, 2 CI 237, Unallotted
   Saturday, Oct. 13, 2RA 220, 2DS, 2FA 250, 2GR 390, 2ZG 360
   7 to 7.45, 7.45 to 9.15, 9.15 to 10
   Sunday, Oct. 14, 2GR 390, 2CM, 2JM 236
   Mon., Oct. 15, 2ER 200, 2FA 250, 2GR 390, 2RA 220, 2LO 237
   Tuesday, Oct. 16, 2RA 220, 2ER 200, 2JM 236, 2GR 390, Unallotted
   Wednes., Oct. 17, Unallotted, 2GR 390, 2FA 250, 2LO 237, Unallotted
   Transmitters are requested to ring Redfern 732 (during day) and North 226 (at night) to book Roster Times, or call 2HP (330) by Radio Phone return 7 p.m. and 7.30 p.m. daily. The figures shown beside call sign denote wave length
Davis' station 2DS heard broadcasting by Croydon Radio Club while on a Launch Picnic
   THE CROYDON RADIO CLUB PICNIC. On Monday, October 1st the above club enjoyed a launch picnic on the harbour. By permission of the Radio Inspector a receiving set was installed on the launch. Mr. W. Cottrell (2ZN) of Coogee, lent the club his receiving set, a very efficient three valve set, with white xylonite panel. Messrs. Colville Moore, were good enough to lend a magnavox loud speaker. Messrs. Luckman, Craig and Slade made a cage aerial which was fixed on the small masts of the launch. While the boat was in motion the spark of the engine was very audible in telephones, but C.W. and spark signals were easily readable. When the launch stopped at Flat Rock, in Middle Harbour (2DS) Jack Davis was heard transmitting music and speech. The reception was loud and clear. Later in the afternoon (2CI) Mr. R. D. Charlesworth was heard. Screening by surrounding hills was very noticeable. 2DK was also heard. Owing to the rough weather, tuning was very difficult, but some very interesting experiments could be carried out in calm weather on a small launch. Members of the Club were very satisfied with the results obtained under such bad conditions and it is intended to make another experiment at a later date.
2DS heard in Toowoomba
   STATIONS HEARD. Mr. E. L. Norris, 4CK, Toowoomba, Queensland, forwards a list of stations heard during last fortnight on 4 valve neutrodyne: 2CM, 2JM, 2GR, 2DS, 2DK, 2ER, 2FA, 2ZG, 2LO, 2UW, 2CI, 2BM, 2BB, 2AR. All these stations have been heard clearly by Mr. Norris on telephony — 3BY was also heard on C.W. only. We would be pleased if more country amateurs would write in giving lists of stations heard.— Editor.

##### 1923 12
#### 1924
##### 1924 12
#### 1925
##### 1925 12
#### 1926
##### 1926 12
#### 1927
##### 1927 12
#### 1928
##### 1928 12
#### 1929
##### 1929 12
### 1930s
#### 1935
##### 1935 01
##### 1935 12

Davis included in list of experimental stations as at 6 December 1935
   EXPERIMENTAL STATIONS. These stations broadcast on the following frequencies: 60,000 to 56,000 k.c., 30,000 to 28,000 k.c., 14,400 to 14,000 k.c., 7300 to 7000 k.c., 4000 to 3500 k.c., and 1990 to 1715 k.c.
   Call Sign. Licensee. Address. . . .
   VK2DS Davis, R. R., No. 1 Flat, "Dumar Court," Dumaresq Rd., Rose Bay.

#### 1939
##### 1939 01
##### 1939 12
### 1940s
#### 1949
##### 1949 01
##### 1949 12
### 1950s
#### 1959
##### 1959 01
##### 1959 12
### 1960s
#### 1969
##### 1969 01
##### 1969 12
### 1970s
#### 1979
##### 1979 01
##### 1979 12
### 1980s
#### 1989
##### 1989 01
##### 1989 12
### 1990s
#### 1999
##### 1999 01
##### 1999 12
## References

* ↑ "THE MAGIC SPARK". Evening News (New South Wales, Australia) (17154): p. 7. 10 June 1922. http://nla.gov.au/nla.news-article118848192. Retrieved 1 March 2025.
* ↑ Australasian Radio Relay League., "AMATEUR CALLS NEW SOUTH WALES.", The wireless weekly : the hundred per cent Australian radio journal, Sydney: Wireless Press (Vol. 1 No. 19 (8 December 1922)), nla.obj-639623859, retrieved 1 March 2025 – via Trove {{citation}}: |section= ignored (help)
* ↑ Australasian Radio Relay League., "Logs of Amateur Transmitting Stations", The wireless weekly : the hundred per cent Australian radio journal, Sydney: Wireless Press (Vol. 2 No. 19 (11 May 1923)), nla.obj-639873389, retrieved 2 March 2025 – via Trove {{citation}}: |section= ignored (help)
* ↑ Australasian Radio Relay League., "Round the Club?.", The wireless weekly : the hundred per cent Australian radio journal, Sydney: Wireless Press (Vol. 2 No. 25 (22 June 1923)), nla.obj-639891075, retrieved 2 March 2025 – via Trove {{citation}}: |section= ignored (help)
* ↑ Australasian Radio Relay League., "Round the Elubs", The wireless weekly : the hundred per cent Australian radio journal, Sydney: Wireless Press (Vol. 2 No. 29 (20 July 1923)), nla.obj-640027769, retrieved 2 March 2025 – via Trove {{citation}}: |section= ignored (help)
* ↑ Australasian Radio Relay League., "Roster for Week ending 17th October, 1923", The wireless weekly : the hundred per cent Australian radio journal, Sydney: Wireless Press (Vol. 3 No. 1 (12 October 1923)), nla.obj-640426555, retrieved 1 March 2025 – via Trove {{citation}}: |section= ignored (help)
* ↑ Australasian Radio Relay League., "Round the Clubs.", The wireless weekly : the hundred per cent Australian radio journal, Sydney: Wireless Press (Vol. 3 No. 1 (12 October 1923)), nla.obj-640427205, retrieved 2 March 2025 – via Trove {{citation}}: |section= ignored (help)
* ↑ Australasian Radio Relay League., "Round the Clubs.", The wireless weekly : the hundred per cent Australian radio journal, Sydney: Wireless Press (Vol. 3 No. 1 (12 October 1923)), nla.obj-640427205, retrieved 2 March 2025 – via Trove {{citation}}: |section= ignored (help)
* ↑ Australasian Radio Relay League., "EXPERIMENTAL STATIONS", The wireless weekly : the hundred per cent Australian radio journal, Sydney: Wireless Press (Vol. 26 No. 23 (December 6, 1935)), nla.obj-737978980, retrieved 1 March 2025 – via Trove {{citation}}: |section= ignored (help)