Unsure what these are called


Mike GD6ICR
 

Please tell me what these connections are called need 2 of these flanges and 2 sets of the coupling rings. Unsure whether the transition from n-type to waveguide is a dummy load or a test connection. Please help if you can
Mike GD6ICR IO74PF73TW

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