diff --git a/Feather9x_TX_RX_XXX/Feather9x_TX_RX_XXX.ino b/Feather9x_TX_RX_XXX/Feather9x_TX_RX_XXX.ino
index 90fb609..ec2a029 100644
--- a/Feather9x_TX_RX_XXX/Feather9x_TX_RX_XXX.ino
+++ b/Feather9x_TX_RX_XXX/Feather9x_TX_RX_XXX.ino
@@ -52,18 +52,16 @@ void setup() {
   rf95.setTxPower(23, false);
 }
 
-int16_t packetnum = 0;
-
 void loop() {
-  // Transmit code  
-  char radiopacket[7] = "";
-  itoa(packetnum++, radiopacket, 10); 
+  // Transmit code
+  char radiopacket[100] = "";
+  ultoa(millis(), radiopacket, 10); 
   Serial.print("Sending "); Serial.println(radiopacket);
   rf95.send((uint8_t *)radiopacket, RH_RF95_MAX_MESSAGE_LEN);
   rf95.waitPacketSent();
 
   // Receiver code
-  while (!rf95.available()) {}
+  delay(100);
   if (rf95.available()) {
     // Should be a message for us now   
     uint8_t buf[RH_RF95_MAX_MESSAGE_LEN];