diff --git a/cubesatsim/cubesatsim.h b/cubesatsim/cubesatsim.h
index 4bdcb82c..bf8f3f22 100644
--- a/cubesatsim/cubesatsim.h
+++ b/cubesatsim/cubesatsim.h
@@ -78,7 +78,7 @@
 #define TEMPERATURE_PIN 28  // Diode temperature analog pin
 
 #define PORT 8080
-#define FREQUENCY_OFFSET 0
+//#define FREQUENCY_OFFSET 0
 #define TRUE 1
 #define FALSE 0
 
@@ -131,6 +131,7 @@
 #define PROMPT_I2CSCAN 14
 #define PROMPT_WIFI 15
 #define PROMPT_CAMERA 16
+#define PROMPT_OFFSET 17
 
 #define PAYLOAD_QUERY 1
 #define PAYLOAD_RESET 2
@@ -224,6 +225,7 @@ void load_sstv_image_2_as_cam_dot_jpg();
 void get_input();
 void transmit_led(bool status);
 void reset_min_max();
+int frequency_offset = 0;
 
 #ifndef STASSID
 #define STASSID "Pico"