diff --git a/src/TTGO_T-Beam_LoRa_APRS.ino b/src/TTGO_T-Beam_LoRa_APRS.ino
index 069c46b..1f26a69 100644
--- a/src/TTGO_T-Beam_LoRa_APRS.ino
+++ b/src/TTGO_T-Beam_LoRa_APRS.ino
@@ -287,9 +287,9 @@ void prepareAPRSFrame(){
   outString += Tcall;
 
   if (relay_path.isEmpty()){
-    outString += ">APLO01:!";
+    outString += ">APLO02:!";
   }else{
-    outString += ">APLO01," + relay_path + ":!";
+    outString += ">APLO02," + relay_path + ":!";
   }
 
   if(gps_state && gps.location.isValid()){
@@ -583,7 +583,7 @@ String prepareCallsign(const String& callsign){
         String telemetryEquations = String(":") + Tcall_message + ":EQNS.0,5.1,3000,0,10,0,0,10,0,0,28,3000,0,10,0";
         String telemetryData = String("T#") + tel_sequence_str + "," + String(b_volt) + "," + String(b_in_c) + "," + String(b_out_c) + "," + String(ac_volt) + "," + String(ac_c) + ",00000000";
         String telemetryBase = "";
-        telemetryBase += Tcall + ">APLO01" + tel_path_str + ":";
+        telemetryBase += Tcall + ">APLO02" + tel_path_str + ":";
         Serial.print(telemetryBase);
         sendToTNC(telemetryBase + telemetryParamsNames);
         sendToTNC(telemetryBase + telemetryUnitNames);