The HOD (Hook-On-Device) for UAS


The Hook-On-Device (HOD) for UAS and other aircraft (such as helicopters) to transmit their own position data. Thanks to its low weight, the HOD can be attached to any aircraft. It contains an LTE modem and a SIM card. The device transmits its current GNSS position via LTE to the UAS Traffic Management (UTM) system of DFS. The device is capable of receiving FLARM and ADS-B from surrounding air traffic and sending this data additionally to its own position to the UTM system. The UAS operator receives the UAS own position and the position data of other relevant air traffic in the vicinity via the web based UTM tracker. At the same time, the HOD transmits its position via FLARM (flight alarm). In this way, the aircraft also becomes visible to otherairspace users in the vicinity who use FLARM.


• Connectivity: 4G LTE Cat1, GNSS, ADS-B, FLARM - wide band/multi-constellation/1090 MHZ/868MHz

• LTE modem to track aircraft via LTE

• Internal antennas: Built-in LTE antenna can be activated optionally

• External antennas: LTE, GNSS, FLARM and ADS-B antennas

• Compatible with all FLARM systems in aircraft and UAS

• Licensed FLARM transceiver (0.025 Watt output power) - broadcasting its own position

• Barometric sensor on board

• Simple plug\&play integration

• Programming via AT commands

• Dimension: 58 mm x 38 mm x 9.5 mm


• On-board traffic monitoring

• Position broadcasting

• Implementation of Detect and Avoid algorithms

Basic Electrical specification:

Parameter Value
FLARM frequencies
(transmitter and receiver)

868 MHz

FLARM range Highly dependent on antenna installation (also at other airspace users)
ADS-B 1090 MHz receiver
ADS-B-range 250 km (can be reduced by the user to limit data usage)
Antenna orientation
GNSS oriented upwards (writing "Pulse" facing up)
LTE/FLARM/ADS-B - oriented downwards
External (power) connector 6 pin JST (power and data) or mirco USB (power and data), MMCX (antennas)
Power supply 5 V (external power supply, such as a power bank or aircraft's power supply)
Energy consumption < 400 mA
Dimension 58 mm x 38 mm x 9.5 mm
Weight 35 g without antennas
84 g with antennas
89 g with USB and antennas
60 g power bank
149 g HOD with all antennas and power bank


Umowa o dofinansowanie Projektu "Podniesienie konkurencyjności firmy Aerobits poprzez zwiększenie jej potencjału eksportowego" Nr RPZP.01.15.00-32-004/17-00 w ramach Regionalnego Programu Operacyjnego Województwa Zachodniopomorskiego 2014-2020 Oś Priorytetowa 1 "Gospodarka, Innowacje, Nowoczesne Technologie" Działanie 1.15 "Wsparcie kooperacji przedsiębiorstw"

Umowa o dofinansowanie Projektu "Uzyskanie międzynarodowej ochrony patentowej 2 wynalazków Aerobits Sp. z o.o." Nr POIR.02.03.04-32-0001/17-00 w ramach poddziałania 2.3.4 "Ochrona własności przemysłowej" Programu Opercyjnego Inteigenty Rozwój, 2014-2020 współfinansowanego za środków Europejskiego Funduszu Rozwoju Regionalnego. Całkowity koszt realizacji projektu wynosi 345 444,00 PLN, przyznanego dofinansowania 147 100,00 PLN.

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