diff --git a/afsk/main.c b/afsk/main.c
index 381ebe1f..1453507d 100644
--- a/afsk/main.c
+++ b/afsk/main.c
@@ -418,7 +418,7 @@ amps_max[1] = rnd_float(140, 160) * (float) cos(angle[0]);
 amps_max[2] = rnd_float(140, 160) * (float) cos(angle[1] - angle[0]);
 	
 batt = rnd_float(3.5, 4.3);
-speed = rnd_float(0.5, 1.2);
+speed = rnd_float(1.0, 2.5);
 eclipse_time = rnd_float(0, 300);
 eclipse = (rnd_float(-1, +1) > 0) ? 1 : 0;
 period = rnd_float(150, 300);