diff --git a/src/main.c b/src/main.c
--- a/src/main.c
+++ b/src/main.c
@@ -14,7 +14,7 @@
 
 
 // We have access to the 1PPS pin of the gps... could have trim routine for internal oscillator based on this when we have a fix
-// Probabl wake up 1 minute early -- 0.45min possible +/- on wakeup time with 15min sync intervals
+// Probable wake up 1 minute early -- 0.45min possible +/- on wakeup time with 15min sync intervals
 
 
 // TODO: Add JT9 message with more grid locator digits + altitude + vbatt + temp
@@ -40,7 +40,7 @@ uint32_t statled_ontime = 0;
 int main(void)
 {
     HAL_Init();
-    HAL_Delay(2000); // startup delay before infinisleep
+    HAL_Delay(1000); // startup delay before infinisleep
 
     sysclk_init();
     rtc_init();
@@ -64,12 +64,13 @@ int main(void)
     uint8_t fix_ok = 0;
     uint8_t numsats = 0;
 
+    uint8_t packet_type = 0;
 
     while (1)
     {
 
     	// Every 10 minutes, wake up and try to wspr
-    	if(state == SYSTEM_IDLE && (HAL_GetTick() - last_wspr_tx_time > 60000))// * 10))
+    	if(state == SYSTEM_IDLE && (HAL_GetTick() - last_wspr_tx_time > 60000 /* * 10 */))
     	{
     		state = SYSTEM_GPSACQ;
     	}
@@ -84,7 +85,7 @@ int main(void)
             	// If odd minute
             	if(gps_getdata()->minute % 2)
             	{
-            		// Wait until even minute, coming soon
+            		// Wait until even minute plus one second, coming soon
             		nextwspr_time = HAL_GetTick() + (60000 - (gps_getdata()->second * 1000));
                     nextwspr_time_valid = 1;
 
@@ -190,7 +191,9 @@ int main(void)
 
             			__calc_gridloc(grid_locator, latitude_flt, longitude_flt);
 
-						wspr_transmit(grid_locator);
+                        // TODO: Switch between alternate and standard packet
+						wspr_transmit(grid_locator, packet_type);
+                        //packet_type = !packet_type; // alternate packet type
 						last_wspr_tx_time = HAL_GetTick();
 						state = SYSTEM_IDLE;
             		}