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. 


  • 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.


MODEL STS4-WBS-AC000 STS4-WBS-AC900 STS4-WBS-AC024 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 Physical 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

1 The stated range is based on line-of-sight.  Range will be reduced with physical interference within the line-of-sight.
2 The estimated time is based on a new battery operating at room temperature, time will vary slightly depending on actual conditions.


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