Expert Electronics SunSDR2 DX - Quick Start Guide Manual

HF output power check
1. Check the output power with Tune mode and dummy load.
Set Tune slider to 100%, on HF bands you should have about 100W with current about 20А.
If the current is lower, then do the following:
Set Drive=0
Press MOX
Current should be about 4.7А, if it's lower, then most likely one of the transistors got burned,
it should be replaced.
2. Open the TRX
Unscrew 4 screws on the front panel, remove the metal panel and plastic panel;
Unscrew 2 top screws on the rear panel;