title: LoRa Ra-01 P2P distance
body: <p>I am using LoRa RA-01 to P2P communication. I set the parameter of module to default value but max distance (range) that it is obtained less 5 meters.</p>
  
  <p>My project algorithm is :</p>
  
  <p>Transmitter side :<br>
  1_Enable LoRa modem.<br>
  2_Select STDBY mode.<br>
  3_Mapping TxDone interrupt on DIO0 pin.<br>
  4_Upload RegFifoTxBaseAdd content(0x80) to buffer pointer.<br>
  5_Write 0x60 value(a typical value) to buffer.<br>
  6_Write 0x01 to RegPayloadLength register.<br>
  7_When switch closed(switch is connect to host uc)Select Tx mode repeatedly(with 1 second delay) for send data continually.<br>
  8_500 mili second after switch opened the interrupt flag is cleared.  </p>
  
  <p>Receiver side :<br>
  1_Enable LoRa modem.<br>
  2_Select STDBY mode.<br>
  3_Mapping RxDone interrupt on DIO0 pin(default).<br>
  4_Select Receive continuous mode.<br>
  5_When switch closed the interrupt flag is cleared.  </p>
  
  <p>Note 1 : I use antenna that is presented with module.<br>
  Note 2 : This project is only for testing range.<br>
  Note 3 : I need a distance about 400 meters indoor.  </p>
  
  <p>Question 1 : Is this module work without antenna in range about hundreds meters?<br>
  Question 2 : How do i configure these module for high distance(less 1 kilometer)(with or without antenna)?  </p>
  
  <p>I apology for i don't speak English fluently</p>