I GET A WEIRD POP OR SQUEAL ON TURN ON
We have had people have this noise on one bike with a DSP150.4D. Sold that bike got a different bike, put the SAME DSP150.4D with the Pop/Squeal issue on the new bike and NO Pop/Squeal noise!!! Crazy!! Any who! First try the turn-on options….
Sometimes…. simply using an alternative turn on option (like DC or VOX ) solves the problem. If not…bring in the BIG guns!! And use this simple circuit with a normal 12V relay to momentary shut off the DSP150.4D and solve the Pop/Squeal noise!!!