A FDM multiple user software configurable arbitrary format (MUSCAF) UHF receiver prototype

Conventional PMR style radio receivers based on analog technology receive one frequency channel at any one time. This paper presents an alternative digital solution which currently allows up to 16 simultaneous 12.5 kHz spaced FDM channels to be demodulated to ETSI-B type approval standards, and uses conventional, currently available cost effective componentry. Arbitrary modulation formats per channel are supported. Technical issues up to and including the analog to digital converter (ADC) interface are discussed.