follow up: adjust settings for et channels

tools/et_catcher.cpp

@@ -66,7 +66,7 @@ int main(int argc, char* argv[]) try
     }
 
     // attach to ET system
-    auto ch = new PRadETChannel(100*1024*1024);
+    auto ch = new PRadETChannel;
     ch->Open(host.c_str(), port, etf.c_str());
     ch->NewStation("Data Catcher");
     ch->AttachStation();