diff --git a/pyModeS/decoder/bds/bds50.py b/pyModeS/decoder/bds/bds50.py
index 9055df0..4965c2b 100644
--- a/pyModeS/decoder/bds/bds50.py
+++ b/pyModeS/decoder/bds/bds50.py
@@ -50,7 +50,7 @@ def is50(msg: str) -> bool:
         return False
 
     tas = tas50(msg)
-    if tas is not None and tas > 500:
+    if tas is not None and tas > 600:
         return False
 
     if (gs is not None) and (tas is not None) and (abs(tas - gs) > 200):
@@ -145,11 +145,9 @@ def rtrk50(msg: str) -> Optional[float]:
     if d[34] == "0":
         return None
 
-    if d[36:45] == "111111111":
-        return None
-
     sign = int(d[35])  # 1 -> negative value, two's complement
     value = common.bin2int(d[36:45])
+
     if sign:
         value = value - 512
 
diff --git a/pyModeS/decoder/bds/bds60.py b/pyModeS/decoder/bds/bds60.py
index 98c9a79..39db087 100644
--- a/pyModeS/decoder/bds/bds60.py
+++ b/pyModeS/decoder/bds/bds60.py
@@ -150,10 +150,8 @@ def vr60baro(msg: str) -> Optional[int]:
     sign = int(d[35])  # 1 -> negative value, two's complement
     value = common.bin2int(d[36:45])
 
-    if value == 0 or value == 511:  # all zeros or all ones
-        return 0
-
-    value = value - 512 if sign else value
+    if sign:
+        value = value - 512
 
     roc = value * 32  # feet/min
     return roc
@@ -176,10 +174,8 @@ def vr60ins(msg: str) -> Optional[int]:
     sign = int(d[46])  # 1 -> negative value, two's complement
     value = common.bin2int(d[47:56])
 
-    if value == 0 or value == 511:  # all zeros or all ones
-        return 0
-
-    value = value - 512 if sign else value
+    if sign:
+        value = value - 512
 
     roc = value * 32  # feet/min
     return roc
diff --git a/pyproject.toml b/pyproject.toml
index 6d1cb45..954e208 100644
--- a/pyproject.toml
+++ b/pyproject.toml
@@ -1,6 +1,6 @@
 [tool.poetry]
 name = "pyModeS"
-version = "2.18"
+version = "2.19"
 description = "Python Mode-S and ADS-B Decoder"
 authors = ["Junzi Sun <j.sun-1@tudelft.nl>"]
 license = "GNU GPL v3"