VSAT DSi9 Ku (90 cm)

High speed Internet on boat, in any weather condition.

Stabilized maritime VSAT antenna with 90 cm dish size for Ku-band services.

The DSi9 Ku Evo employs state-of-the-art technology and is our most installed Ku-band VSAT antenna. With the latest generation of tracking technology the DSi9 represents the perfect solution for all requirements of a reliable and fast internet on any type of maritime vessel.

Only top quality materials are used and manufacturing is done in-house, observing tight quality control regulations and safety norms. The result is a robust and rugged stabilized antenna system with high tracking accuracy, incorporating the latest generation of tracking technology. In short, the perfect solution for those who venture into the open seas without wanting to give up a stable and fast internet connection.


90 cm

Radome dimensions (D/H)

111 cm x 114 cm


58 Kg

Azimuth range


Elevation range

-10° to +90°

Skew range

-120° to +120°

Max. tracking speed




Satellite acquisition

completely automated


0633 6437 284 22

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Feed Subsystem
Reflector diameter 90 cm (35.43")
Minimum E.I.R.P. 43 dBW
LNB Universal (LOF 9.75/10.6 GHz, PLL stabilized, internal ref.)
BUC Super extended Ku (LOF 12.80 GHz, PLL stabilized, external ref.)
Available BUC power 8 W / 16 W / 25 W
RX antenna gain 39.5 dBi @ 12.5 GHz
TX antenna gain 40.3 dBi @ 14.25 GHz
RX/TX polarization Linear, Co-pol and X-pol
G/T >18.2 dB/K (clear sky, 30 ° elevation)
Position acquisition Internal GNSS (GPS)
Tracking receiver Internal, 950 - 2150 MHz; BW 2.5/10 MHz
Frequency band
RX frequency 10.7 - 12.75 GHz
TX frequency 13.75 - 14.5 GHz
Convertible From Ku- to Ka-Band via separate kit
Drive Subsystem
Tracking technology EPAK® Evo: Electronic Beam Forming (EBF-Gyro) + 3D Rate Gyro + 3D inertial + GNSS
EBF gyro drift calibration rate 12.5 msec (80 times per sec)
Maximum tracking speed 30°/s (each axis)
Azimuth range Unlimited
Elevation range -10° to +90°
Skew range -120° to +120°
Maximum ship motion Roll: ±30° @ 6 sec
Pitch: ±20° @ 6 sec
Yaw: ±8° @ 6 sec
Ship motion (for stabilization accuracy tests) Roll: ±30° @ 10-12 sec
Pitch: ±20° @ 8-10 sec
Yaw: ±8° @ 15 sec
Motion system 2-axis plus auto skew
Power Specification
Power supply antenna (ODU) 24 V DC (supplied by ACU)
Antenna input voltage TX (BUC) 24, 30, 48 V DC / 250 VA (supplied by ACU)
Power consumption (ODU excl. BUC) 20-100 VA (supplied by ACU)
Lock on time Typ. 30 sec (Time to online depends on modem)
Satellite acquisition Completely automated by DVB-S2-Receiver and/or modem confirmation (according to ETSI 302 340)
EPAK Diversity-Kit compatible Yes
Modem approval Standard type approval; CE & EPAK type approval
Operating temperature -20°C to 55°C
Storage temperature -30°C to 85°C
Humidity According to IEC 60945, 100% condensing
Vibration According to IEC 60945; MIL-STD-167-1
Shock According to IEC 60945; MIL-STD-810F
Rain IP56
Wind Operational: < 150 km/h (< 81 knots)
Survival < 200 km/h (< 108 knots)
Compass safe distance ≥ 2.00 m (according to IEC60945)
Compliance CE (Maritime), ETSI; Complies with specifications of EC directive 1999/5/EC Radio &
Telecommunications Terminal Equipment (R&TTE); compliance with EC directive
2006/95/EC, EMC directive 2004/108/EC and IEC 301-427
Antenna Control Unit
Dimensions 48 cm x 4.45 cm x 47.8 cm (19" Rack 1HU size)
Gyro interface NMEA0183 / NMEA2000 (via RS422 or RS232) / SIMRAD RGC11
Input voltage, frequency 90~264 V AC, 47~63 Hz
External I/O Ethernet, USB 2.0
Local user interface LCD - 2 push keys
Modem interface Ethernet port
Remote access TCP/IP
GPS Built-in GPS
Dimensions and Weight
Radome (D x H) 111 cm × 114 cm (43.7" × 44.9")
Weight (incl. Radome) 58 kg (127.87 lbs)


Datasheet VSAT DSi9 Ku

Datasheet VSAT DSi9 Ku

Wiring Scheme VSAT DSi9 Ku

Wiring Scheme VSAT DSi9 Ku