Merge branch 'pr-454' into merge-pr-454-455

radio-presets.json

@@ -145,7 +145,7 @@
                     "bandwidth": "250",
                     "coding_rate": "5"
                 },
-                  {
+                {
                     "title": "USA (Southern California)",
                     "description": "927.875MHz / SF7 / BW62.5 / CR7",
                     "frequency": "927.875",
@@ -153,6 +153,14 @@
                     "bandwidth": "62.5",
                     "coding_rate": "7"
                 },
+                {
+                    "title": "USA (Philadelphia Metro)",
+                    "description": "902.250MHz / SF11 / BW500 / CR5",
+                    "frequency": "902.250",
+                    "spreading_factor": "11",
+                    "bandwidth": "500",
+                    "coding_rate": "5"
+                },
                 {
                     "title": "Vietnam",
                     "description": "920.250MHz / SF11 / BW250 / CR5",