new experimental to operate on frequencies 3100- 3500 MHz for fulfillment of US Airforce Contract Assigned to Northrop Grumman Corp. File # 5143-EX-AL-96 new experimental to operate on frequencies 3100- 3500 MHz for fulfillment of US Airforce Contract Assigned to Northrop Grumman Corp. File # 5143-EX-AL-96 SYB 2-26-98