The NetWave® industrially hardened narrow bandwidth dual wireless radio is is used for redundant ring and drop & repeat topologies when used with an external antenna. Radio 1 is a 20 dBi 17° internal antenna while radio 2 has dual N-Female connectors for an external 5GHz antenna. The wide range of channel spectrum widths available on the NW1DR[IC] series of radios gives you the option of using wide channel widths for high throughput deployments that have little interference and noise while the narrow channel widths will increase the number of available non overlapping channels and improve stability in crowded RF environments but decrease maximum throughput. The NW1DR is FCC certified for use in North America. The NW1DRIC is IC certified for use in Canada.