Watkin's Electric Range Indicator
Watkin's Electric Range Indicator was an electrical shipboard transmitter/receiver pair developed by a Colonel Watkin, R.A.,[1] which the Royal Navy first evaluated around 1894. Upon its first mention, it was described as working well.[2]
Design and Evaluation
Although Watkin's equipment is briefly described in encouraging terms in 1894, the successive editions of the Annual Report of the Torpedo School fail to mention them again until 1897, when it is mentioned that Watkin had delivered a combination range and order telegraph using a single dial for both data. A polarised relay moved an "indicator" to show which data was being transmitted at any given time. As a "step by step" system, it is mentioned that receiver and transmitter could get out of step, even when handled properly.[3]
See Also
Footnotes
- ↑ Annual Report of the Torpedo School, 1897. p. 79.
- ↑ Annual Report of the Torpedo School, 1894. p. 15.
- ↑ Annual Report of the Torpedo School, 1897. p. 79.
Bibliography
- H.M.S. Vernon. Annual Report of the Torpedo School, 1894. Copy 254 at The National Archives. ADM 189/14.
