The challenge
Existing public-safety radio channels had to remain live through parallel installation, staged testing, channel-by-channel cutover and rollback. New equipment had to integrate with existing IP microwave backhaul, dispatch consoles, logging recorders, GPS timing, 12/48 VDC power and RF infrastructure. Eight addenda changed quantities, requirements, pricing forms and implementation assumptions. The response also had to address bonding, prevailing wage, insurance, acceptance and liquidated-damages requirements.

