Help setting up RFID reader with hard to understand schematic with arduino UNO

Guys,

I have read all of it. I have tried 3 wl-125 readers, soldered the headers, different pins, different Arduino boards, different baud rates, different tags, a couple of antennas.

It just won't read. What Am I doing wrong?

#include <SoftwareSerial.h>

SoftwareSerial rf(9, 10);

void setup(){
rf.begin(9600);
Serial.begin(9600);
}
void loop(){
if(rf.available()>0)
{
Serial.write(rf.read());
}
}

rfid (Small).JPG