You have two main problem areas compared to the heywhatsthat theoretical range: a wide one due west and a narrow one towards east-south-east. As far as I can see, the latter is caused by the two buildings on José Bonaparte x Espiridião de Sousa. They are right above you and considerably higher. The problem westwards appears to be of a different kind, something to do with the antenna. I see in the other thread that you had to work on it and even then you thought it performed worse than it should. Looking at the map of broken tracks westwards, I think so too.
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