Update bds20.py

2022-04-18 11:27:53 +02:00
parent b52431ca51
commit ce5adbafe5
1 changed files with 4 additions and 2 deletions
--- a/pyModeS/decoder/bds/bds20.py
+++ b/pyModeS/decoder/bds/bds20.py
@@ -24,9 +24,11 @@ def is20(msg):
    if d[0:8] != "00100000":
        return False

-    cs = cs20(msg)
+    # allow empty callsign
+    if common.bin2int(d[8:56]) == 0
+        return True

-    if "#" in cs and common.bin2int(d[8:56])>0: #message with empty callsign can still be BDS2,0
+    if "#" in cs20(msg):
        return False

    return True