Methods were devised for the rapid repair of damaged cables. Various
devices for laying cable above the normal ground level and dispensing cable from aircraft
and vehicles were fabricated. Methods for cable laying and a cable
rewinding machine was manufactured.
Also constructed were an instrumented 30ft/40ft pneumatically
erectable mast, a trailer-mounted 70ft pneumatic mast, and lightweight steel and
fibreglass masts 27ft to 110 ft in length.
SRDE manufactured C.F.R.P.tubes for
antenna support structures. A taut wire transducer was used to measure the changes in the profile
of a 2 metre diameter parabolic reflector. With this device, changes of 0.05 mm were
identified and a remote reading device permitted several centimetres of variation to be
accurately recorded as the antenna pointing was varied from zenith to horizon.