PGXL was working last night for SARTG contest, came back after sleep and no output at all. It does sense band changes and displays ptt properly. When keyed with rtty or cw the desktop app displays a small burst of maybe a 100w then goes immediately to zero. Cycled power, all tests passed, no change. Did factory reset, all test passed, no change. firmware is up to date. antennas check fine on low power with amp in standby. graphs look ok except for output power. with 100w drive in cw Id shows 2-4a but zero output. Anything else to try???