From 0eb2d1f6a2f8ba10b54da65b6809593b1fb0f051 Mon Sep 17 00:00:00 2001
From: Flyer350 <57186034+Flyer350@users.noreply.github.com>
Date: Thu, 18 Nov 2021 11:24:42 +0100
Subject: [PATCH] Update bds61.py
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Fix the Mode A decoder. The ZERO is already part of  the binary data inside the message and does not need to be added.

See ED-102A, 2.2.3.2.7.8.1.2 b. Starting with ―ME‖ bit 12, the code sequence shall be C1, A1, C2, A2, C4, A4, ZERO, B1, D1, B2, D2, B4, D4.
---
 pyModeS/decoder/bds/bds61.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/pyModeS/decoder/bds/bds61.py b/pyModeS/decoder/bds/bds61.py
index 05dc649..22e7343 100644
--- a/pyModeS/decoder/bds/bds61.py
+++ b/pyModeS/decoder/bds/bds61.py
@@ -77,7 +77,7 @@ def emergency_squawk(msg: str) -> str:
     msgbin = common.hex2bin(msg)
 
     # construct the 13 bits Mode A ID code
-    idcode = msgbin[43:49] + "0" + msgbin[49:55]
+    idcode = msgbin[43:56]
 
     squawk = common.squawk(idcode)
     return squawk