 must be designed to meet very high reliability operations with less than a 1-minute outage per month, cumulative outage of less than 10 minutes per year. Each site must have at least two physical routes between the central master control PRACTICAL IP AND TELECOM FOR BROADCAST ENGINEERING AND OPERATIONS and each transmitter site. If one path experiences an outage, the network will be required to sense the outage and restore service via the alternate route without human intervention. Alternate route fa- cilities between the central site and each transmitter site will be designated Main and Backup. Both paths will be subject to monitoring and alarm at all times. The normal mode of operation is Main path on air, and Backup path in standby. If the Main path experiences an outage, the network will be required to switch to Standby signal automatically without human intervention. If the Standby path ex- periences an outage, it will cause an alarm to be initiated and logged. Service restoration will be of the highest priority, and at least equal to any service restoration priority provided to other customers in the class covering public convenience and safety. Service Provider Technical Qualifications The service provider shall demonstrate competence through design level expertise with classical and contemporary network technology, systems, facilities, services, and network operations. The successful service provider will own more than 75% of all facilities that the network traverses. For those portions it does not own, it will be required to demonstrate satisfactory contractual business relation- ships with the owner. The successful service provider will incorporate network manage- ment systems that can be accessed by the buyer for purposes of lodging requests for investigation of alarms and outages. Preference will favor those service providers capable of demonstrating current capabilities to accept requests for investigation of outages or service impairment whereby the user enters information into a terminal or other 