diff --git a/libraries/APM_RC/examples/APM1_radio/APM1_radio.pde b/libraries/APM_RC/examples/APM1_radio/APM1_radio.pde
index a51e10f82a..36dbb32a20 100644
--- a/libraries/APM_RC/examples/APM1_radio/APM1_radio.pde
+++ b/libraries/APM_RC/examples/APM1_radio/APM1_radio.pde
@@ -16,6 +16,14 @@ void setup()
 {
     isr_registry.init();
 	APM_RC.Init(&isr_registry);	 // APM Radio initialization
+  APM_RC.enable_out(CH_1);
+  APM_RC.enable_out(CH_2);
+  APM_RC.enable_out(CH_3);
+  APM_RC.enable_out(CH_4);
+  APM_RC.enable_out(CH_5);
+  APM_RC.enable_out(CH_6);
+  APM_RC.enable_out(CH_7);
+  APM_RC.enable_out(CH_8);
 
 	Serial.begin(115200);
 	Serial.println("ArduPilot Mega RC library test");
diff --git a/libraries/APM_RC/examples/APM2/Purple_radio.pde b/libraries/APM_RC/examples/APM2/Purple_radio.pde
index 2dcb8c77ef..b776ef0234 100644
--- a/libraries/APM_RC/examples/APM2/Purple_radio.pde
+++ b/libraries/APM_RC/examples/APM2/Purple_radio.pde
@@ -17,6 +17,15 @@ void setup()
     isr_registry.init();
 	APM_RC.Init(&isr_registry);	 // APM Radio initialization
 
+  APM_RC.enable_out(CH_1);
+  APM_RC.enable_out(CH_2);
+  APM_RC.enable_out(CH_3);
+  APM_RC.enable_out(CH_4);
+  APM_RC.enable_out(CH_5);
+  APM_RC.enable_out(CH_6);
+  APM_RC.enable_out(CH_7);
+  APM_RC.enable_out(CH_8);
+
 	Serial.begin(115200);
 	Serial.println("ArduPilot Mega RC library test");
 	delay(1000);