Narrow band direct sequence/frequency hopping spread spectrum VHF radio

A VHF tactical radio is being developed for the Norwegian Army by NFT-Ericsson. This radio has a considerable direct sequence spread spectrum (DS) processing gain in fixed frequency (FF) mode. In frequency hopping mode each hop has a DS component adding to the total jamming resistance. The services offered are combat net radio, single channel radio access, and command, control, and intelligence real-time data. The radio has been named the Multi-Role Radio (MRR). Packet radio is offered in all services. A DS/FF prototype transmitter and receiver were tested in 1988. In the field tests 2.4-kb/s data were received with a bit error rate of 10/sup -3/ or better with the same or smaller power than required by a PRC 77 for just readable voice.<
>