Box 9: RGO 43/71-76
Container
Contains 6 Results:
File
Correspondence on radio time signals, 1949
File
Reference Code: GBR/0180/RGO 43/71
Scope and Contents
From the Sub-Series:
The letters relate to many facets of this subject, for example the clocks from which the signals were derived, the frequencies used in broadcasting and the accuracy of the signals. The period covered by this correspondence was one of great technical advances in time-keeping within the Royal Observatory (RO) and there are many letters toward the end of the files giving information of these developments. At the beginning, i.e. in 1916, the only radio time signals available were the...
Dates:
1949
Conditions Governing Access:
From the Series:
Part restricted. Much of this collection is as yet unprocessed. Requests to view unlisted material should be sent to els57@cam.ac.uk. Access to files RGO 43/78-81 is restricted until 80 years from the date of creation under the terms of the Data Protection Act 2018.
File
Correspondence on radio time signals, mainly from radio time users or customers seeking information on, or corrections to, radio time signals, 1953
File
Reference Code: GBR/0180/RGO 43/72
Scope and Contents
From the Sub-Series:
The letters relate to many facets of this subject, for example the clocks from which the signals were derived, the frequencies used in broadcasting and the accuracy of the signals. The period covered by this correspondence was one of great technical advances in time-keeping within the Royal Observatory (RO) and there are many letters toward the end of the files giving information of these developments. At the beginning, i.e. in 1916, the only radio time signals available were the...
Dates:
1953
Conditions Governing Access:
From the Series:
Part restricted. Much of this collection is as yet unprocessed. Requests to view unlisted material should be sent to els57@cam.ac.uk. Access to files RGO 43/78-81 is restricted until 80 years from the date of creation under the terms of the Data Protection Act 2018.
File
Correspondence on radio time signals dealing with virtually every aspect of the subject - transmission frequencies, accuracy, the publication of corrections etc., 1953 - 1957
File
Reference Code: GBR/0180/RGO 43/73
Scope and Contents
From the Sub-Series:
The letters relate to many facets of this subject, for example the clocks from which the signals were derived, the frequencies used in broadcasting and the accuracy of the signals. The period covered by this correspondence was one of great technical advances in time-keeping within the Royal Observatory (RO) and there are many letters toward the end of the files giving information of these developments. At the beginning, i.e. in 1916, the only radio time signals available were the...
Dates:
1953 - 1957
Conditions Governing Access:
From the Series:
Part restricted. Much of this collection is as yet unprocessed. Requests to view unlisted material should be sent to els57@cam.ac.uk. Access to files RGO 43/78-81 is restricted until 80 years from the date of creation under the terms of the Data Protection Act 2018.
File
Correspondence on time signal transmission and reception results, with letters from other observatories and laboratories discussing methods and results, 1959 - 1975
File
Reference Code: GBR/0180/RGO 43/74
Scope and Contents
There are also letters from radio amateurs reporting reception of signals and requesting technical information on the transmitters. The file includes an RGO report dated 18 July 1962 containing information on the detection by the Time Department of a H-Bomb explosion in the Pacific Ocean on 9 July 1962.
Dates:
1959 - 1975
Conditions Governing Access:
From the Series:
Part restricted. Much of this collection is as yet unprocessed. Requests to view unlisted material should be sent to els57@cam.ac.uk. Access to files RGO 43/78-81 is restricted until 80 years from the date of creation under the terms of the Data Protection Act 2018.
File
Correspondence of listeners to the Rugby Radio Time Signals, who addressed reports of their reception to the RGO, 1959 - 1975
File
Reference Code: GBR/0180/RGO 43/75
Scope and Contents
The letters are mainly from amateur radio enthusiasts.
Dates:
1959 - 1975
Conditions Governing Access:
From the Series:
Part restricted. Much of this collection is as yet unprocessed. Requests to view unlisted material should be sent to els57@cam.ac.uk. Access to files RGO 43/78-81 is restricted until 80 years from the date of creation under the terms of the Data Protection Act 2018.
File
Correspondence of H.M. Smith regarding his attendance at the symposium on Continental Drift and the Polar Motion, held at Stresa, Italy, in March 1967, 1967
File
Reference Code: GBR/0180/RGO 43/76
Scope and Contents
Also included are copies of papers presented at the symposium.
Dates:
1967
Conditions Governing Access:
From the Series:
Part restricted. Much of this collection is as yet unprocessed. Requests to view unlisted material should be sent to els57@cam.ac.uk. Access to files RGO 43/78-81 is restricted until 80 years from the date of creation under the terms of the Data Protection Act 2018.