How to increase the range of UHF RFID Antenna (RP-TNC)

Sensors NFC & RFID
1

We just bought a whole new set of the M6E Nano RFID reader along with sparkfun redboard, UHF RFID Antenna (RP-TNC) and Wall Adapter Power Supply - 5VDC, 2A (All from Sparkfun). We follow the steps from the guide, hook everything up and use Sparkfun Example 1 - Constant Read but I was only able to get a very limited range of only 5-10 cm. I want to ask if I want to increase the range of do I need to change it in the library coding. I never change any settings as I am not familiar with RFID. Is it the nano.setReadPower(500); //5.00 dBm where I have to change? If yes, I want the range to increase to 1 meter away from the antenna, how much should I put?

void setup()
{
  Serial.begin(115200);
  while (!Serial); //Wait for the serial port to come online

  if (setupNano(38400) == false) //Configure nano to run at 38400bps
  {
    Serial.println(F("Module failed to respond. Please check wiring."));
    while (1); //Freeze!
  }

  nano.setRegion(REGION_NORTHAMERICA); //Set to North America

  nano.setReadPower(500); //5.00 dBm. Higher values may caues USB port to brown out
  //Max Read TX Power is 27.00 dBm and may cause temperature-limit throttling

  Serial.println(F("Press a key to begin scanning for tags."));
2

Use the steps here https://learn.sparkfun.com/tutorials/si … range-test to increase the power output :smiley: