The forerunner of the mobile phone

One of the main objectives of SRDE was to provide an efficient, reliable and flexible computer controlled digital battlefield communication system. This enabled Army signallers to relay speech, data and facsimile information to Headquarters using multi-channel radio links. This allowed signallers to be highly mobile in the field while still sending quick and secure messages by man-portable and vehicle-mounted radios at all times.

Tell me more...