fix vertical rate, scale 64 times

2016-10-26 20:52:33 +02:00 · 2016-10-26 20:52:33 +02:00 · 3691d6f73d
commit 3691d6f73d
parent dad1cd89a9
1 changed files with 2 additions and 2 deletions
--- a/pyModeS/adsb.py
+++ b/pyModeS/adsb.py
@ -576,7 +576,7 @@ def velocity(msg):
        tag = 'AS'

    vr_sign = util.bin2int(msgbin[68])
-    vr = util.bin2int(msgbin[69:78])            # vertical rate
+    vr = (util.bin2int(msgbin[69:78]) - 1) * 64     # vertical rate, fpm
    rocd = -1*vr if vr_sign else vr                 # rate of climb/descend

    return int(spd), round(hdg, 1), int(rocd), tag