I live very close to Mexico City’s airport (MEX) , about 10 miles away and right below it’s approach route. Every plane above my home is displayed in Piaware and viceversa. I get at least a 100NM range, with peaks at around 210NM
I’ve been using Piaware for about 2 years now. My stats page shows about 450-550 daily flights seen by my receiver which is consistent with other receivers in the city, obviously not all seen aircraft are headed to or departed MEX, so I would guess the actual daily operations in MEX should be below that daily average.
Today I heard in the news that airport officials said that during the holiday season they average 1,000 daily flights, so I investigated and found the official airport monthly report in which apparently there are about 30,000-40,000 monthly flights (pages 6 & 9 https://www.aicm.com.mx/acercadelaicm/archivos/files/Estadisticas/EstadisticasNov2021.pdf)
What do airports report as an “operation”? I would say either an arrival or a departure, but maybe thay are reporting something else or with a different methodology. One possibility is that they are providing false information, but I don’t think so.
I’m preety sure I’m seeing all incoming and outgoing flights in my receiver (as it is consistent with other receivers in the city), but can’t explain the differences.