FDM DUO Attenuator behaviour


Bob G3PJT
 

When I set the attenuator all the signals disappear. Its as if the antenna is disconnected
Is there a setting somewhere to set the level of attenation. My DUO has only just started to do this
I have done a reset and no change
Any ideas?
73 Bob G3PJT

Join EladSDR@groups.io to automatically receive all group messages.