source code from : http://gitlab.oe5xbl.ampr.org/oe5hpm/dxlAPRS
commit ID        : ef57b3911b0b6f98e670619a9286f9e01e78c3f8
title            : sonde: minor changes
Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>
sonde: minor changes Signed-off-by: Hannes Schmelzer <oe5hpm@oevsv.at>