User Manual

The fastest way to test the RDS message sending is using an RTL-SDR (that's how we debugged the

breakout!) (https://adafru.it/dBr) or a phone/radio that can do RDS decoding

Using the RPS Scanning function

The Si4713 has the ability 'scan' the FM band and measure the input power. You can use the RPS functionality to

locate a good unused station. Find this section in the adaradio demo and uncomment the for loop:

Reupload and look at the serial console:

// Uncomment below to scan power of entire range from 87.5 to 108.0 MHz

for (uint16_t f = 8750; f<10800; f+=10) {

radio.readTuneMeasure(f);

Serial.print("Measuring "); Serial.print(f); Serial.print("...");

radio.readTuneStatus();

Serial.println(radio.currNoiseLevel);

}