From 852315ed2d455fc1c1c96922ca9b90cb73567407 Mon Sep 17 00:00:00 2001
From: Flyer350 <57186034+Flyer350@users.noreply.github.com>
Date: Mon, 4 Dec 2023 14:33:36 +0100
Subject: [PATCH] Update allcall.py

Modified a mistake in the interpretation of CA field 7.
See ICAO Annex 10, Vol IV., 3.1.2.5.2.2.1
---
 pyModeS/decoder/allcall.py | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/pyModeS/decoder/allcall.py b/pyModeS/decoder/allcall.py
index 3023ab3..c7bdae9 100644
--- a/pyModeS/decoder/allcall.py
+++ b/pyModeS/decoder/allcall.py
@@ -88,9 +88,9 @@ def capability(msg: str) -> tuple[int, None | str]:
         )
     elif ca == 7:
         text = (
-            "Downlink Request value is 0, "
+            "Downlink Request value is not 0, "
             "or the Flight Status is 2, 3, 4 or 5, "
-            "either airborne or on the ground"
+            "and either airborne or on the ground"
         )
     else:
         text = None