Presently, the Uniden SDS100 and SDS200 are the only scanners designed to receive simulcast systems. The Unication G4 and G5 pagers are excellent but presently have some limitations. They can scan only one system at a time and do not have talkgroup hold or scan delay. They cannot scan a Motorola Type II system. Unication is working on a update to make the pagers more like scanners. Not sure if it will be just a firmware update or introduction of a new scanner.