Hey N2AVH,
Tarma is one of my absolute favorites, although admittedly I have to go to steam 90 % of the time to copy them. FWIW, my wife is from Peru and has actually been to Tarma.
The station op was asked why he continues on shortwave when there is "no one " listening and no money to be made from it.
His answer was that if he could bring some entertainment to people in remote areas (even IF they don't spend a lot of money), that was fine.
I believe his father started the station, they have been on for MANY,MANY years.
It's quite the operation : AM, SW, maybe 4 on FM , cable TV , etc.
K