0356z 135.200 HAVOC 20 flight wkg Moncton Center. Request radio check. 0356z 135.200 HAVOC 21 request uniform freq. 0357z 269.300 HAVOC 20 flight of two check in w/ZBW, would like to move the block from 30-31 to 23-24. Must be setting up for a refuel soon in AR-20. No A-A found yet. No tankers heard yet. Ed Langworthy Gray, ME