diff --git a/src/pifmrds/control_pipe.c b/src/pifmrds/control_pipe.c
index decd821..999da52 100644
--- a/src/pifmrds/control_pipe.c
+++ b/src/pifmrds/control_pipe.c
@@ -139,6 +139,9 @@ ResultAndArg poll_control_pipe() {
 			if(rds) printf("OFF\n"); else printf("ON\n");
 			resarg.res = CONTROL_PIPE_RDS_SET;
 			resarg.arg = (char)rds;
+		} else if(fifo[0] == 'D' && fifo[1] == 'E' && fifo[2] == 'V') {
+			resarg.res = CONTROL_PIPE_DEVIATION_SET;
+			resarg.arg = atoi(arg);
 		}
 	}
 	return resarg;
diff --git a/src/pifmrds/control_pipe.h b/src/pifmrds/control_pipe.h
index d92d876..358d77b 100644
--- a/src/pifmrds/control_pipe.h
+++ b/src/pifmrds/control_pipe.h
@@ -15,6 +15,7 @@
 #define CONTROL_PIPE_PI_SET 8
 #define CONTROL_PIPE_PWR_SET 9
 #define CONTROL_PIPE_RDS_SET 10
+#define CONTROL_PIPE_DEVIATION_SET 11
 
 typedef struct {
     int res;
diff --git a/src/pifmrds/pi_fm_rds.cpp b/src/pifmrds/pi_fm_rds.cpp
index 0526dc7..d6908f8 100644
--- a/src/pifmrds/pi_fm_rds.cpp
+++ b/src/pifmrds/pi_fm_rds.cpp
@@ -192,6 +192,9 @@ int tx(uint32_t carrier_freq, char *audio_file, uint16_t pi, char *ps, char *rt,
             } else if(pollResult.res == CONTROL_PIPE_PWR_SET) {
                 pad_reg[GPIO_PAD_0_27] = 0x5a000018 + (int)pollResult.arg;
                 pad_reg[GPIO_PAD_28_45] = 0x5a000018 + (int)pollResult.arg;
+            } else if(pollResult.res == CONTROL_PIPE_DEVIATION_SET) {
+                deviation = pollResult.arg;
+                deviation_scale_factor=  0.1 * (deviation );
             }
         }