| RefNo | ACS/1/2/1/73 |
| AltRefNo | 86 |
| Level | Item |
| Title | Letter from [Alan Archibald Campbell] Swinton, to General [Gustave-Auguste] Ferrié |
| Creator | Swinton; Alan Archibald Campbell (1863-1930); British electrical engineer |
| Date | 1 November 1920 |
| Description | Discusses preparations for two speeches he is due to give on 17 an 18 November, on radiotelegraphy—one at the Royal Society of Arts and the other at the Wireless Society of London. Intends to demonstrate the reception of radio-telegraphic signals through an automatic printing device, likely the CREED machine. Highlights several technical concerns:
1. The need for an automatic transmitter to facilitate the CREED machine’s functioning, as it reportedly does not work well with manually sent signals.
2. Difficulty in finding a station in the country with enough power to guarantee clear reception.
3. Suggestion that the Eiffel Tower station, which apparently has the needed automatic transmitter, be used for this demonstration.
Proposes sending perforated paper tape with specific Morse characters that will be compatible with the CREED device. Additionally suggests conducting a preliminary test at 40 words per minute, then increasing to 60 words per minute to find the optimal transmission speed for best results. The transmission should use a specific frequency that matches their regular use for timing signals. Hopes that General Ferrié will agree to assist, expressing gratitude for any help. Believes that this demonstration, which would be the first public display of receiving printed signals from Paris to London via wireless telegraphy, would spark significant interest in the country. |
| Language | French |
| Extent | 3p |
| Format | Typescript |
| PhysicalDescription | Carbon |
| AccessStatus | Open |
Fellows associated with this archive
| Code | PersonName | Dates |
| NA8285 | Swinton; Alan Archibald Campbell (1863 - 1930); electrical engineer | 1863 - 1930 |