INTERFERENCE OF
GLOBAL NAVIGATION
SATELLITE SYSTEM (GNSS)
Stockholmradio (STORADIO) has provided the
airlines with a reliable, stable and 247/365 air to
ground HF service since 1968. It all started as a
project between Scandinavian Airlines System, SAS
and the Swedish telecom company Televerket (now
Telia.) The project grew and throughout the years our
OCC has connected thousands of calls from flight
deck to ground and vice versa. Stockholmradio still
has approx. 250 airlines using our HF radio service
and this year it has been a boom with airlines signing
up. The experts that said that airline HF was dead
years ago, were proven wrong and the service and
system are still very reliable and well maintained.
And Stockholmradio is one of the few operators left
on the market that knows how to handle and provide
the services.
With the widespread usage and high reliance of
GNSS, also comes vulnerability to outages due
to interference, jamming and spoofing. These
vulnerabilities have increased lately and many of
our customers are concerned about this negative
development. Also, with the increased world tension
due to wars and “hostile countries”, the discussions
how to maintain a safe and secure air to ground
communication has come to light again. Many OCC
controllers and pilots are not familiar how the HF
works (even though most aircraft are equipped with
HF antennas and that OCC staff have limited basic
knowledge) and we see a trend that more airlines
are reaching out to us, regarding how to use the
HF. On our webpage we have a lot of information,
and our 247 OCC can always support other OCC
staff and pilots of how to handle the HF in a more
professional way.