diff --git a/cubesatsim/cubesatsim.ino b/cubesatsim/cubesatsim.ino
index fcbdbd6d..b3c6fdf7 100644
--- a/cubesatsim/cubesatsim.ino
+++ b/cubesatsim/cubesatsim.ino
@@ -2607,14 +2607,16 @@ void print_string(char *string)
 void start_payload() {
 
 #ifdef APRS_VHF	  
- Serial2.setRX(9);	
+// Serial2.setRX(9);	
+// Serial2.setRX(9);		
 //   Serial2.setRX(1);
    delay(100);
- Serial2.setTX(8);
+// Serial2.setTX(8);
+// Serial2.setTX(8);	
 //   Serial2.setRX(0);
   	
    delay(100);
-   Serial2.begin(115200);	
+   Serial1.begin(115200);	
 	
    Serial.println("Starting Serial2 for payload");	
 #else	
@@ -3082,11 +3084,11 @@ void payload_OK_only()
   if (true) {
   
     blink(50);
-    char result = Serial2.read();
-//    Serial2.println(result);
+    char result = Serial1.read();
+//    Serial1.println(result);
     Serial.println(result);
     if (result == 'R') {
-      Serial2.println("OK");
+      Serial1.println("OK");
       delay(100);
       first_read = true;
       start_payload(); 	    
@@ -3097,42 +3099,42 @@ void payload_OK_only()
     if (true)
     {
       if (bmePresent) {
-        Serial2.print("OK BME280 ");
-        Serial2.print(bme.readTemperature());
-        Serial2.print(" ");
-        Serial2.print(bme.readPressure() / 100.0F);
-        Serial2.print(" ");
-        Serial2.print(bme.readAltitude(SEALEVELPRESSURE_HPA));
-        Serial2.print(" ");
-        Serial2.print(bme.readHumidity());
+        Serial1.print("OK BME280 ");
+        Serial1.print(bme.readTemperature());
+        Serial1.print(" ");
+        Serial1.print(bme.readPressure() / 100.0F);
+        Serial1.print(" ");
+        Serial1.print(bme.readAltitude(SEALEVELPRESSURE_HPA));
+        Serial1.print(" ");
+        Serial1.print(bme.readHumidity());
       } else
       {
-        Serial2.print("OK BME280 0.0 0.0 0.0 0.0");
+        Serial1.print("OK BME280 0.0 0.0 0.0 0.0");
       }
       mpu6050.update();
 
-      Serial2.print(" MPU6050 ");
-      Serial2.print(mpu6050.getGyroX());
-      Serial2.print(" ");
-      Serial2.print(mpu6050.getGyroY());
-      Serial2.print(" ");
-      Serial2.print(mpu6050.getGyroZ());
+      Serial1.print(" MPU6050 ");
+      Serial1.print(mpu6050.getGyroX());
+      Serial1.print(" ");
+      Serial1.print(mpu6050.getGyroY());
+      Serial1.print(" ");
+      Serial1.print(mpu6050.getGyroZ());
 
-    Serial2.print(" ");
-    Serial2.print(mpu6050.getAccX());   
-    Serial2.print(" ");
-    Serial2.print(mpu6050.getAccY());   
-    Serial2.print(" ");
-    Serial2.print(mpu6050.getAccZ());   
+    Serial1.print(" ");
+    Serial1.print(mpu6050.getAccX());   
+    Serial1.print(" ");
+    Serial1.print(mpu6050.getAccY());   
+    Serial1.print(" ");
+    Serial1.print(mpu6050.getAccZ());   
 
     sensorValue = analogRead(TEMPERATURE_PIN);
     //Serial.println(sensorValue);  
     Temp = T1 + (sensorValue - R1) *((T2 - T1)/(R2 - R1));
 
-    Serial2.print(" XS ");
-    Serial2.print(Temp);   
-    Serial2.print(" ");
-    Serial2.println(Sensor2);              
+    Serial1.print(" XS ");
+    Serial1.print(Temp);   
+    Serial1.print(" ");
+    Serial1.println(Sensor2);              
      
     float rotation = sqrt(mpu6050.getGyroX()*mpu6050.getGyroX() + mpu6050.getGyroY()*mpu6050.getGyroY() + mpu6050.getGyroZ()*mpu6050.getGyroZ()); 
     float acceleration = sqrt(mpu6050.getAccX()*mpu6050.getAccX() + mpu6050.getAccY()*mpu6050.getAccY() + mpu6050.getAccZ()*mpu6050.getAccZ());