Skyhawk 172/Cutlass 172
Flight Crew Instrument; Flight Crew Private
Flight Crew Last 90 Days 13; Flight Crew Total 259; Flight Crew Type 93
Situational Awareness; Communication Breakdown
Conflict NMAC
Flight Crew Took Evasive Action
Human Factors
I was midfield left downwind for [Runway] 20 at ZZZ. Aircraft Y made a report for an 8 mile left base for [Runway] 20. A couple of seconds later; Aircraft Y reported close base. I then proceeded to announce I was just going to turn base and asked where they were at. As soon as I asked; he was less than 400 feet away on a collision course and made an immediate descending right turn to avoid. I was trying to get in communication with the pilot with no response.
Cessna Pilot reported a NMAC while on base leg.