Rigol ra5040k 40db attenuator rigol ra5040k p the rigol ra5040k is a 40db attenuator for the rigol signal generator series dg5000 dg3000 and dg1000 as well as the rigol dsa1000 and dsa800 series p p the attenuator is looped into the signal line and attenuates the signal by 40db p rigol ra5040k 40 db signal attenuator for dg4102 dg4162