Simca Marmon Links
The following links have proved useful to me in my SUMB project:
UK importers and spare parts source.
Freely downloadable operators and technical manuals.
QR-MH-14 radio relay station in SUMB
A radio relay installation in the SUMB contemporary with the UK BRUIN system.
High Quality scanned PDF manuals from France. MAT2719 and MAT3437 are the essential operating and maintenance manuals. See also the radio installation manual
An index of SUMB videos on Youtube
's scans of the drawings for various HF and VHF radio setups and the antenna mounting hardware.