update roll check

2018-04-04 10:41:55 +02:00 · 2018-04-04 10:41:55 +02:00 · e821b8fa77
commit e821b8fa77
parent 1b3dcef659
1 changed files with 3 additions and 4 deletions
--- a/pyModeS/decoder/bds/bds50.py
+++ b/pyModeS/decoder/bds/bds50.py
@ -54,10 +54,9 @@ def is50(msg):
    if wrongstatus(d, 46, 47, 56):
        return False

-    if d[1:11] != "0000000000":
-        roll = abs(roll50(msg))
-        if roll and roll > 60:
-            return False
+    roll = roll50(msg)
+    if (roll is not None) and abs(roll) > 60:
+        return False

    gs = gs50(msg)
    if gs is not None and gs > 600: