diff --git a/platformio.ini b/platformio.ini
index 2ba45acb..04f57c52 100644
--- a/platformio.ini
+++ b/platformio.ini
@@ -12,10 +12,10 @@
 ; ---> SELECT TARGET PLATFORM HERE! <---
 [platformio]
 ;env_default = heltec
-env_default = ttgov1
+;env_default = ttgov1
 ;env_default = ttgov2
 ;env_default = ttgov21
-;env_default = ttgobeam
+env_default = ttgobeam
 ;env_default = lopy
 ;env_default = lopy4
 ;env_default = fipy
diff --git a/src/main.cpp b/src/main.cpp
index 08379a5a..888ce858 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -643,6 +643,8 @@ void setup() {
 #endif
 
 // if device has GPS and it is enabled, start GPS reader task on core 0
+// higher priority than wifi channel rotation task since we process serial
+// streaming NMEA data
 #ifdef HAS_GPS
   if (cfg.gpsmode) {
     ESP_LOGI(TAG, "Starting GPS task on core 0");