A spread spectrum radio that provides a solution for wireless network communications over distances of up to 85 kilometres.
The RF451 consists of a radio module manufactured by FreeWave Technologies and a Campbell Scientific interface board. It is a spread spectrum radio that provides a solution for wireless network communications over distances up to 85 kilometres. The radio's transmission distance is ideal for point-to-multipoint networks. In point-to-multipoint networks, data is collected from one or more datalogger(s) and then transmitted to a central site. The central site typically contains a PC running LoggerNet software, but may contain a datalogger, instead. Spread spectrum radios spread the normally narrowband information signal over a relatively wide band of frequencies. This process makes communications more immune to noise and interference from RF sources such as pagers, cellular phones, and multi-path. User-selectable frequency hopping patterns reduce the radios' susceptibility to RF interference from other spread spectrum devices.
Benefits and Features
Individual radio license not required
Maximum transmission distance of 60 miles, and realistic reliable transmission distance of approximately 13 miles
Low current drain
Wide operating temperature range
High data transfer speeds
High noise immunity-superior performance in noise congested environments
Error Free Communications-32 bit Cyclical Redundancy Checking (CRC) with automatic retransmission
Ability to have stand-alone RF router/repeaters (up to 8 repeaters)
Real time remote diagnostics and setup, transparent to network communications