diff --git a/cw/cw_main.c b/cw/cw_main.c
index d7ccabb0..ad7eadba 100644
--- a/cw/cw_main.c
+++ b/cw/cw_main.c
@@ -59,6 +59,14 @@ int add_dash(uint8_t *msg, int number);
 int add_dot(uint8_t *msg, int number); 
 int add_space(uint8_t *msg);
 
+ax5043_conf_t hax5043;
+ax25_conf_t hax25;
+
+static void init_rf();
+void config_x25();
+void trans_x25();
+
+
 int main(void)
 {
     uint8_t retVal;
@@ -442,3 +450,61 @@ int add_dot(uint8_t *msg, int number) {
 	}
 	return counter;	
 }
+
+int x25_main(void) {
+    setSpiChannel(SPI_CHANNEL);
+    setSpiSpeed(SPI_SPEED);
+    initializeSpi();
+
+    int ret;
+    uint8_t data[1024];
+    // 0x03 is a UI frame
+    // 0x0F is no Level 3 protocol
+    // rest is dummy CubeSatSim telemetry in AO-7 format 	
+    const char *str = "\x03\x0fhi hi 101 102 103 104 202 203 204 205 303 304 305 306 404 405 406 407 408 505 506 507 508 606 607 608 609\n";
+
+    /* Infinite loop */
+    for (;;) {
+        sleep(2);
+    	
+	// send X.25 packet
+
+    	init_rf();
+
+    	ax25_init(&hax25, (uint8_t *) "CQ", '2', (uint8_t *) "DX", '2',
+    		AX25_PREAMBLE_LEN,
+   		 AX25_POSTAMBLE_LEN);
+
+        
+	printf("INFO: Transmitting X.25 packet\n");
+
+        memcpy(data, str, strnlen(str, 256));
+        ret = ax25_tx_frame(&hax25, &hax5043, data, strnlen(str, 256));
+        if (ret) {
+            fprintf(stderr,
+                    "ERROR: Failed to transmit AX.25 frame with error code %d\n",
+                    ret);
+            exit(EXIT_FAILURE);
+        }
+        ax5043_wait_for_transmit();
+        if (ret) {
+            fprintf(stderr,
+                    "ERROR: Failed to transmit entire AX.25 frame with error code %d\n",
+                    ret);
+            exit(EXIT_FAILURE);
+        }
+
+    }
+
+    return 0;
+}
+
+static void init_rf() {
+    int ret;
+    ret = ax5043_init(&hax5043, XTAL_FREQ_HZ, VCO_INTERNAL);
+    if (ret != PQWS_SUCCESS) {
+        fprintf(stderr,
+                "ERROR: Failed to initialize AX5043 with error code %d\n", ret);
+        exit(EXIT_FAILURE);
+    }
+}