The STS4 Wireless Base Station (STS4-WBS) is the central communication hub between the user’s PC running STS-LIVE and all other STS4 components. All components of this system have been designed to meet the rough field conditions that exist for most projects. Mounting the system on the tripod allows the entire assembly to be quickly moved around in rough ground conditions so that the wireless signal is optimized.


Control Unit Ethernet Communication
AP 10/100 Base-T, +24 Vdc Proprietary (Passive) Power-Over-Ethernet (Connection to Access Point)
POE 10/100 Base-T, +24 Vdc Proprietary (Passive) Power-Over-Ethernet (Alternative Connection)
PC 10/100 Base-T (Connection to PC)
Control Unit Power
Li-Ion Battery +10.8 Vdc (Nominal), 8.7 Ah, 93 Wh
DC Supply +24 Vdc @ 2.0 Amp (max for charging)
Access Point
Type Dual Band Wireless Access Point
2.4 GHz Wireless IEEE 802.11b/g/n, 27 dBm
Access Point Mode (wirelessly connect STS4 hardware and PC)
5.0 GHz Wireless IEEE 802.11a/n/ac, 27 dBm
Bridge Mode (wirelessly connect between multiple STS4-WBS)
ALPT Transceiver
Radio Frequency n/a 900-928 MHz 2.400 – 2.483 GHz
Range1 n/a 4 miles (6.5 km) 2.5 miles (4 km)
Typical Power Consumption
Typical Power Consumption (AP + ALPT) 5.1 W 5.8 W 5.4 W
Estimated Operating Time2 18 Hours 16 Hours 17 Hours
Assembled Size (W x L x H) 24 x 24 x 42 in (610 x 610 x 1220 mm)
Assembled Weight 10.5 lbs (4.76 kg)
Operating Temperature -20 °C to +60 °C


  • Generates both wireless and wired Local Area Networks (LANs)
  • Battery powered for easy placement between PC and STS4 Nodes in field
  • Supports up to 128 STS4 Nodes
  • Optional support for STS4 Automatic Load Position Tracker (ALPT)
  • Multiple STS4-WBS units can be linked for larger projects.

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