diff --git a/examples/RF69/RF69_Receive_Address/RF69_Receive_Address.ino b/examples/RF69/RF69_Receive_Address/RF69_Receive_Address.ino
index d5fcba0f..61530cc0 100644
--- a/examples/RF69/RF69_Receive_Address/RF69_Receive_Address.ino
+++ b/examples/RF69/RF69_Receive_Address/RF69_Receive_Address.ino
@@ -35,7 +35,7 @@ void setup() {
   }
 
   // set node address
-  // NOTE: calling this method will autmatically enable
+  // NOTE: calling this method will automatically enable
   // address filtering (node address only)
   Serial.print(F("[RF69] Setting node address ... "));
   state = rf.setNodeAddress(0x02);
diff --git a/examples/RF69/RF69_Receive_Interrupt/RF69_Receive_Interrupt.ino b/examples/RF69/RF69_Receive_Interrupt/RF69_Receive_Interrupt.ino
index df7133ac..8d38952d 100644
--- a/examples/RF69/RF69_Receive_Interrupt/RF69_Receive_Interrupt.ino
+++ b/examples/RF69/RF69_Receive_Interrupt/RF69_Receive_Interrupt.ino
@@ -14,7 +14,7 @@ RF69 rf = RadioShield.ModuleA;
 
 void setup() {
   Serial.begin(9600);
-  
+
   // initialize RF69 with default settings
   Serial.print(F("[RF69] Initializing ... "));
   // carrier frequency:                   434.0 MHz
@@ -32,10 +32,10 @@ void setup() {
     while (true);
   }
 
-  // set the function that will be called 
+  // set the function that will be called
   // when new packet is received
   rf.setDio0Action(setFlag);
-  
+
   // start listening for packets
   Serial.print(F("[RF69] Starting to listen ... "));
   state = rf.startReceive();
@@ -54,7 +54,6 @@ void setup() {
   // rf.sleep()
   // rf.transmit();
   // rf.receive();
-  // rf.scanChannel();
 }
 
 // flag to indicate that a packet was received
@@ -86,23 +85,23 @@ void loop() {
 
     // reset flag
     receivedFlag = false;
-    
+
     // you can read received data as an Arduino String
     String str;
     int state = rf.readData(str);
-  
+
     // you can also read received data as byte array
     /*
       byte byteArr[8];
       int state = lora.receive(byteArr, 8);
     */
-    
+
     if (state == ERR_NONE) {
       // packet was successfully received
-      Serial.println("[RF69] Received packet!");
-  
+      Serial.println(F("[RF69] Received packet!"));
+
       // print data of the packet
-      Serial.print("[RF69] Data:\t\t\t");
+      Serial.print(F("[RF69] Data:\t\t\t"));
       Serial.println(str);
     }
 
diff --git a/examples/RF69/RF69_Settings/RF69_Settings.ino b/examples/RF69/RF69_Settings/RF69_Settings.ino
index 5769d792..ed86e505 100644
--- a/examples/RF69/RF69_Settings/RF69_Settings.ino
+++ b/examples/RF69/RF69_Settings/RF69_Settings.ino
@@ -106,7 +106,7 @@ void setup() {
   }
 
   // up to 8 bytes can be set as sync word
-  // NOTE: sync word must not conatin any zero bytes
+  // NOTE: sync word must not contain any zero bytes
   // set sync word to 0x0123456789ABCDEF
   uint8_t syncWord[] = {0x01, 0x23, 0x45, 0x67, 0x89, 0xAB, 0xCD, 0xEF};
   if (rf1.setSyncWord(syncWord, 8) == ERR_INVALID_SYNC_WORD) {
diff --git a/examples/RF69/RF69_Transmit/RF69_Transmit.ino b/examples/RF69/RF69_Transmit/RF69_Transmit.ino
index da3fb065..e8b92c40 100644
--- a/examples/RF69/RF69_Transmit/RF69_Transmit.ino
+++ b/examples/RF69/RF69_Transmit/RF69_Transmit.ino
@@ -45,11 +45,11 @@ void loop() {
 
   if (state == ERR_NONE) {
     // the packet was successfully transmitted
-    Serial.println(" success!");
+    Serial.println(F(" success!"));
 
   } else if (state == ERR_PACKET_TOO_LONG) {
     // the supplied packet was longer than 64 bytes
-    Serial.println(" too long!");
+    Serial.println(F(" too long!"));
 
   }
 
diff --git a/examples/RF69/RF69_Transmit_AES/RF69_Transmit_AES.ino b/examples/RF69/RF69_Transmit_AES/RF69_Transmit_AES.ino
index 8d0be886..a8b93576 100644
--- a/examples/RF69/RF69_Transmit_AES/RF69_Transmit_AES.ino
+++ b/examples/RF69/RF69_Transmit_AES/RF69_Transmit_AES.ino
@@ -62,11 +62,11 @@ void loop() {
 
   if (state == ERR_NONE) {
     // the packet was successfully transmitted
-    Serial.println(" success!");
+    Serial.println(F(" success!"));
 
   } else if (state == ERR_PACKET_TOO_LONG) {
     // the supplied packet was longer than 256 bytes
-    Serial.println(" too long!");
+    Serial.println(F(" too long!"));
 
   }
 
diff --git a/examples/RF69/RF69_Transmit_Address/RF69_Transmit_Address.ino b/examples/RF69/RF69_Transmit_Address/RF69_Transmit_Address.ino
index 2132d56a..77e2a38c 100644
--- a/examples/RF69/RF69_Transmit_Address/RF69_Transmit_Address.ino
+++ b/examples/RF69/RF69_Transmit_Address/RF69_Transmit_Address.ino
@@ -48,7 +48,7 @@ void setup() {
   }
 
   // set broadcast address
-  // NOTE: calling this method will autmatically enable
+  // NOTE: calling this method will automatically enable
   // address filtering (node or broadcast address)
   Serial.print(F("[RF69] Setting broadcast address ... "));
   state = rf.setBroadcastAddress(0xFF);
@@ -101,11 +101,11 @@ void loop() {
 
   if (state == ERR_NONE) {
     // the packet was successfully transmitted
-    Serial.println(" success!");
+    Serial.println(F(" success!"));
 
   } else if (state == ERR_PACKET_TOO_LONG) {
     // the supplied packet was longer than 256 bytes
-    Serial.println(" too long!");
+    Serial.println(F(" too long!"));
 
   }