Increase tx queue length

loraprs_service.h

@@ -76,7 +76,7 @@ private:
 
   const int CfgConnRetryMs = 500;
   const int CfgPollDelayMs = 5;
-  const int CfgLoraTxQueueSize = 1024;
+  const int CfgLoraTxQueueSize = 4096;
 
   // tx when lower than this value from random 0..255
   // use lower value for high traffic, use 255 for real time