diff --git a/Source/main.c b/Source/main.c
--- a/Source/main.c
+++ b/Source/main.c
@@ -64,10 +64,21 @@ int main(void)
   uint32_t last_transmission = HAL_GetTick();
   uint32_t last_led = HAL_GetTick();
 
+  uint32_t transmission_rate = 700;
+  uint32_t is_friendly = 0;
+
   while (1)
   {
-	  // Blink LEDs
-	  if(HAL_GetTick() - last_transmission > 700)
+	  #ifdef FRIENDLY_MODE
+	  	  if(!is_friendly && HAL_GetTick() > 1000 * FRIENDLY_TIMEOUT)
+	  	  {
+	  		  transmission_rate = FRIENDLY_TX_RATE;
+	  		  is_friendly = 1;
+	  	  }
+	  #endif
+
+	  // Transmit RF packet
+	  if(HAL_GetTick() - last_transmission > transmission_rate)
 	  {
 		  gps_update_data(); // Will always return at 1hz rate (default measurement rate)
 
@@ -83,6 +94,7 @@ int main(void)
 		  last_transmission = HAL_GetTick();
 	  }
 
+	  // Blink LEDs
 	  if(HAL_GetTick() - last_led > 100)
 	  {
 		  HAL_GPIO_TogglePin(LED_POWER);