Racom
RACOM, a company headquartered in Nové Město na Moravě, Czech Republic, is specializing in design and production of radio modems, GPRS/EDGE/UMTS routers and microwave links.
History
The core of company started even before the Velvet revolution in 1989 with design and production of equipment for radio amateurs. Radio modems for UHF and VHF licensed bands and wireless data networks became RACOM's main focus shortly afterwards, the first radio modem has been developed in 1991.
Communication over radio modems and GPRS/EDGE/UMTS routers
RACOM specializes to implement types of communication above to SCADA & Telemetry, Fleet management and transaction & financial networks. The main advantage of radio communication is its independence. There are mostly used licensed frequencies, i.e. dedicated radio channel is private and its purity is guaranteed by government body. Communication distance is depended on RF power, antennas and their high above the ground and the next factors, however it is in tens of km, direct line-of-sight is not required. The user has got everything under his control. From technical point of view radio network has got very fast response time with a minimal jitter. When there are a long distances among sites and GPRS/EDGE/UMTS network covers the territory, GPRS/EDGE/UMTS router is possible to use. However essential characters is necessary to keep in mind: public service, technical features are not guaranteed. On the other hand GPRS/EDGE/UMTS networks have got higher throughput, regardless immediate response time is longer. RACOM has developed MORSE system where is possible to combine both technologies in one network.
Communication protocols
There are many automation protocols implemented on user interfaces (RS232, RS485, RS422, Ethernet) of RACOM equipment. The implementation is optimized for radio narrow band in terms of maximum throughput and for GPRS/EDGE/UMTS in terms of minimum data volume, which is charged by networks providers.