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The APS-U Heading Receiver is configured to provide GNSS Heading and RTK Position within a rugged aluminum housing to serve a variety of applications that require accurate heading and position.

The APS-U HDG receiver has a modular design with dual GNSS antennae systems for precise Heading and position within seconds after startup.

In addition to RTK, the APS-U HDG also features L-Band corrections from TERRASTAR for 10 cm position accuracy utilizing Precise Point Positioning without the use of local base stations or RT networks.

GNSS Heading may be used on a variety of installations including construction machines, mapping vehicles, hydrographic survey vessels, and dredging vessels.

APS-U HDG Features

  • Rugged design
  • GNSS Heading & RTK
  • TERRASTAR for 10 cm with PPP
  • Web Interface configuration
  • Serial, USB, Bluetooth and Ethernet
  • Integrated UHF Radio
  • Integrated 3.5 G cellular modem, Tri-Band HSPA, QUAD-BAND GSM/GPRS/EDGE
  • 1PPS, event markers & clock interfaces

APS-U HDG Specifications

Channels 272
SBAS 3 channels - WAAS, EGNOS, other
Standalone H: 1.30 m, V: 1.9 m
SBAS H: 0.60 m, V: 0.80 m
DGPS H: 0.50 m, V: 0.90 m
TERRASTAR D H: 0.10 m, V: 0.20 m
RTK H: 0.6 cm + 0.5 ppm
V: 1 cm + 1 ppm V
Static H: 2 mm + 0.5 ppm
V: 5 mm + 0.5 ppm
1 m Antenna Separation 0.30 degrees
10 m Antenna Separation 0.03 degrees
Output Rate Up to 20 Hz, user selectable
Latency <20 msec
Cold Start <45 sec
Warm Start <20 sec
Re-acquisition <1.2 sec
Input/Output 1PPS
2 x Event Marks
Integrated UHF Radio 406-470 MHz
Integrated Cellular Modem 3.5 G HSPA Modem, HSDPA 7.2 Mbps,
GPRS multi-slot class 12,
EDGE (E-GPRS) multi-slot class 12,
UMTS/HSPA 850/1900/2100 MHz,
Quad-Band GSM 850/900/1800/1900 MHz
Integrated Bluetooth Class 2
Memory Storage Minimum 2 GB internal
Communication Ports 3 x RS232 /1 x USB
1 Ethernet / 1 x CAN
Waterproofing IP67
Humidity MIL-STD-810G, Method 507.5, Procedure I
Dust MIL-STD-810G, Method 510.5, Procedure I
Shock MIL-STD-810G, Method 516.6, Procedure I/II
Vibration MIL-STD-810G, Method 514.6, Procedure I
Certification IP67, RoHS, CE, FCC Class B Part 15
Current Drain 1.0 to 1.5A, 2.75A peak
External Power Input 9 to 30 VDC
Weight 1.5 kg
Dimensions 164 mm x 157 mm x 54 mm
Operating Temperature -20 to +65 deg C
Storage Temperature -40 to +75 deg C

APS-U HDG Applications

With Altus’s open architecture philosophy, the user has the choice of data output to peripheral equipment utilizing standard NMEA v2.30 messages or designing a custom application.
Moreover, with the web interface on board, the user simplifies operation by storing and recalling configuration profiles for typical applications.



APS-U HDG Brochure