diff --git a/examples/Si443x/Si443x_Receive/Si443x_Receive.ino b/examples/Si443x/Si443x_Receive_Blocking/Si443x_Receive_Blocking.ino
similarity index 66%
rename from examples/Si443x/Si443x_Receive/Si443x_Receive.ino
rename to examples/Si443x/Si443x_Receive_Blocking/Si443x_Receive_Blocking.ino
index b5ab2485..54715ffa 100644
--- a/examples/Si443x/Si443x_Receive/Si443x_Receive.ino
+++ b/examples/Si443x/Si443x_Receive_Blocking/Si443x_Receive_Blocking.ino
@@ -1,21 +1,26 @@
 /*
-   RadioLib Si443x Receive Example
+  RadioLib Si443x Blocking Receive Example
 
-   This example receives packets using Si443x FSK radio module.
-   To successfully receive data, the following settings have to be the same
-   on both transmitter and receiver:
-    - carrier frequency
-    - bit rate
-    - frequency deviation
-    - sync word
+  This example receives packets using Si443x FSK radio module.
+  To successfully receive data, the following settings have to be the same
+  on both transmitter and receiver:
+  - carrier frequency
+  - bit rate
+  - frequency deviation
+  - sync word
 
-   Other modules from Si443x/RFM2x family can also be used.
+  Using blocking receive is not recommended, as it will lead
+  to significant amount of timeouts, inefficient use of processor
+  time and can some miss packets!
+  Instead, interrupt receive is recommended.
 
-   For default module settings, see the wiki page
-   https://github.com/jgromes/RadioLib/wiki/Default-configuration#si443xrfm2x
+  Other modules from Si443x/RFM2x family can also be used.
 
-   For full API reference, see the GitHub Pages
-   https://jgromes.github.io/RadioLib/
+  For default module settings, see the wiki page
+  https://github.com/jgromes/RadioLib/wiki/Default-configuration#si443xrfm2x
+
+  For full API reference, see the GitHub Pages
+  https://jgromes.github.io/RadioLib/
 */
 
 // include the library
diff --git a/examples/Si443x/Si443x_Transmit/Si443x_Transmit.ino b/examples/Si443x/Si443x_Transmit_Blocking/Si443x_Transmit_Blocking.ino
similarity index 65%
rename from examples/Si443x/Si443x_Transmit/Si443x_Transmit.ino
rename to examples/Si443x/Si443x_Transmit_Blocking/Si443x_Transmit_Blocking.ino
index 2eddf96e..10bb9942 100644
--- a/examples/Si443x/Si443x_Transmit/Si443x_Transmit.ino
+++ b/examples/Si443x/Si443x_Transmit_Blocking/Si443x_Transmit_Blocking.ino
@@ -1,19 +1,23 @@
 /*
-   RadioLib Si443x Transmit Example
+  RadioLib Si443x Blocking Transmit Example
 
-   This example transmits packets using Si4432 FSK radio module.
-   Each packet contains up to 64 bytes of data, in the form of:
-    - Arduino String
-    - null-terminated char array (C-string)
-    - arbitrary binary data (byte array)
+  This example transmits packets using Si4432 FSK radio module.
+  Each packet contains up to 64 bytes of data, in the form of:
+  - Arduino String
+  - null-terminated char array (C-string)
+  - arbitrary binary data (byte array)
 
-   Other modules from Si443x/RFM2x family can also be used.
+  Other modules from Si443x/RFM2x family can also be used.
 
-   For default module settings, see the wiki page
-   https://github.com/jgromes/RadioLib/wiki/Default-configuration#si443xrfm2x
+  Using blocking transmit is not recommended, as it will lead
+  to inefficient use of processor time!
+  Instead, interrupt transmit is recommended.
 
-   For full API reference, see the GitHub Pages
-   https://jgromes.github.io/RadioLib/
+  For default module settings, see the wiki page
+  https://github.com/jgromes/RadioLib/wiki/Default-configuration#si443xrfm2x
+
+  For full API reference, see the GitHub Pages
+  https://jgromes.github.io/RadioLib/
 */
 
 // include the library
@@ -44,15 +48,15 @@ void setup() {
   }
 }
 
+// counter to keep track of transmitted packets
+int count = 0;
+
 void loop() {
   Serial.print(F("[Si4432] Transmitting packet ... "));
 
   // you can transmit C-string or Arduino string up to
   // 64 characters long
-  // NOTE: transmit() is a blocking method!
-  //       See example Si443x_Transmit_Interrupt for details
-  //       on non-blocking transmission method.
-  int state = radio.transmit("Hello World!");
+  int state = radio.transmit("Hello World! #" + String(count++));
 
   // you can also transmit byte array up to 64 bytes long
   /*
diff --git a/examples/Si443x/Si443x_Transmit_Interrupt/Si443x_Transmit_Interrupt.ino b/examples/Si443x/Si443x_Transmit_Interrupt/Si443x_Transmit_Interrupt.ino
index b13bcafc..1e064a91 100644
--- a/examples/Si443x/Si443x_Transmit_Interrupt/Si443x_Transmit_Interrupt.ino
+++ b/examples/Si443x/Si443x_Transmit_Interrupt/Si443x_Transmit_Interrupt.ino
@@ -1,19 +1,19 @@
 /*
-   RadioLib Si443x Transmit with Interrupts Example
+  RadioLib Si443x Transmit with Interrupts Example
 
-   This example transmits packets using Si4432 FSK radio module.
-   Each packet contains up to 64 bytes of data, in the form of:
-    - Arduino String
-    - null-terminated char array (C-string)
-    - arbitrary binary data (byte array)
+  This example transmits packets using Si4432 FSK radio module.
+  Each packet contains up to 64 bytes of data, in the form of:
+  - Arduino String
+  - null-terminated char array (C-string)
+  - arbitrary binary data (byte array)
 
-   Other modules from Si443x/RFM2x family can also be used.
+  Other modules from Si443x/RFM2x family can also be used.
 
-   For default module settings, see the wiki page
-   https://github.com/jgromes/RadioLib/wiki/Default-configuration#si443xrfm2x
+  For default module settings, see the wiki page
+  https://github.com/jgromes/RadioLib/wiki/Default-configuration#si443xrfm2x
 
-   For full API reference, see the GitHub Pages
-   https://jgromes.github.io/RadioLib/
+  For full API reference, see the GitHub Pages
+  https://jgromes.github.io/RadioLib/
 */
 
 // include the library
@@ -80,6 +80,9 @@ void setFlag(void) {
   transmittedFlag = true;
 }
 
+// counter to keep track of transmitted packets
+int count = 0;
+
 void loop() {
   // check if the previous transmission finished
   if(transmittedFlag) {
@@ -109,13 +112,13 @@ void loop() {
 
     // you can transmit C-string or Arduino string up to
     // 256 characters long
-    transmissionState = radio.startTransmit("Hello World!");
+    transmissionState = radio.startTransmit("Hello World! #" + String(count++));
 
     // you can also transmit byte array up to 64 bytes long
     /*
       byte byteArr[] = {0x01, 0x23, 0x45, 0x67,
                         0x89, 0xAB, 0xCD, 0xEF};
-      int state = radio.startTransmit(byteArr, 8);
+      transmissionState = radio.startTransmit(byteArr, 8);
     */
   }
 }