# The Wireless Telegraphy (Control of Interference from Ignition Apparatus) Regulations 1952, Paragraph 7: General requirements


(1) Gain setting
The accuracy of adjustment of the measuring apparatus shall be such that two successive measurements of any given input voltage (having a value within the range of measurement of the apparatus), between which any adjustment of the operating controls may be made, shall not differ by more than 1 db.
(2) Monitoring
Provision shall be made for aural presentation of the receiver output for monitoring purposes.
FIGURE 1.
FIGURE 2

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Source: https://www.legislation.gov.uk/uksi/1952/2023/schedule/paragraph/7 (the official version)
Page: https://openlegislation.uk/wireless-telegraphy-control-of-interference-from-ignition-apparatus-regulations-1952/schedule/paragraph-7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.