DIRECTORATE OF TELECOMMUNICATIONS
H.O Wireless Telephony Instructions for
Radio Telephony Schemes
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Following the introduction of area wide VHF radio schemes from 1946 onwards for Police Forces in England and Wales, it was only a matter of time before Fire Brigades in the same regions required similar levels of wireless communication.
My understanding is that to facilitate this requirement, Fire Brigades co- shared Police Schemes in each area, either where the Brigade operator was co-sited with Police operators, or via a remote control extension to a nearby Fire Control Room.
During the 1960's as radio traffic increased and placed more demands on existing radio schemes, Fire Brigades were given their own block of radio spectrum and slowly phased across to independent schemes. I believe the last Fire Service to be moved off co-shared schemes was Cumbria during the early 70's.
If anyone has more detailed knowledge, please email the Webmaster and I will update this article accordingly.
To ensure maximum efficiency in the operation of single and shared wireless schemes, the Directorate published an A5 booklet in July 1950 which set out:
a) definite instructions to radio operators as to their duties.
b) control of all stations working in a scheme so as to prevent confusion and mutual interference.
c) provide a recognised message procedure in order to achieve the maximum speed without risk of ambiguity.
Click on the appropriate thumbnail to open relevant A5 page in the Image Viewer, then use the navigation arrows to move between pages.
Many thanks to Denis Cannings for this little gem of a booklet which gives an interesting insight into Police and Fire radio operating procedures from the 1950's and onwards.
Click on the appropriate thumbnail to view the required page.