Aerospace & Defense Technology - December 2024 - 25

RF & Microwave Technology
include equipment like the Argus-5000
and the SkyHunter-4M/P.
* Mobile electronic jammers: Portable
jammers like the Volnorez fit in a backpack
and can be used to disrupt and
ground drones.
* Ad-hoc jammers: According to reports,
Russians have utilized RP-377 jammers,
originally developed to jam combatant
radio comms equipment, as vehicle-mounted
jammers that can disable
incoming drones at relatively close range.
How Can RF Jamming be Countered?
One approach to counter intentional
jamming attempts is to detect interference
and quickly switch to a different
operational channel or band to
elude an incoming jamming signal.
This is the approach employed by
Sense, a LPI (low probability of intercept)
/anti-jam feature-set available on
Doodle Labs Mesh Rider Radios that
are employed as advanced drones' primary
datalink.
With Sense activated, Mesh Rider
Radios scan for interference and background
noise across all frequency
bands. Once the node on the network
is deployed into the field (whether it is
a UAV, UGV or connected team-member),
Sense continually monitors the
health of its LPI/LPD datalink signal. If
the datalink starts to experience significant
interference, Sense automatically
shifts to a better-performing channel
with the current band or to a different
band altogether, maintaining connectivity
and optimizing performance
during the mission.
To understand how Sense works in a
more familiar context, think of radio
frequencies like traffic lanes. Just as
you would switch to a clearer lane on a
busy highway to avoid traffic, Sense
helps your communication system
switch to a clearer frequency to avoid
interference. This smart frequency
management ensures that your
unmanned systems maintain a robust
and reliable connection, even in the
face of intentional or unintentional
jamming.
Sense is battle-tested in challenging
environments in Ukraine, where it's
helping to avoid interference caused by
active jamming.
Doodle Labs has designed several configurations
of its Mesh Rider Radio, including the mini version
pictured here that is available in both standard
and socketed version for integration into drones
and other advanced robotics platforms. (Image:
Doodle Labs LLC)
Teal Drones / Red Cat reported successfully
passing electronic warfare field testing
with Doodle Labs Mesh Rider Radios
and Sense in its prototype drone.
British UAV manufacturer Evolve
Dynamics, a key supplier of drones to
Ukrainian defense forces and other
international police forces, fire services,
energy inspection outfits, search
& rescue organizations and UK Ministry
of Defense customers, employs
Doodle Labs Mesh Rider Radios and
Sense to keep its cutting-edge Sky Mantis
2 aloft in contested airspace.
" No matter how great the base platform
is, without that perfect radio link,
it's only got limited use, " said Mike
Dewhirst, Founder of Evolve Dynamics.
" So you bring those two together and
they don't just become the sum of the
two parts, but it's a massive multiplier
and you suddenly get that magic, perfect
combination, that perfect storm of
all of the requirements of the system, in
terms of flight time, weather, resilience
to jamming, distance, performance,
sensors, usability and rapid deployment,
as well. "
The content for this article was provided
by Doodle Labs LLC (Marina Del Ray,
CA), it has been edited. For more information,
visit www.doodlelabs.com.
Aerospace & Defense Technology, December 2024
mobilityengineeringtech.com
25
http://info.hotims.com/86262-733 http://www.doodlelabs.com http://www.mobilityengineeringtech.com
Aerospace & Defense Technology - December 2024

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