The STS4 Wireless Base Station Data Acquisition (STS4-WBS) is the central communication hub between the user’s PC running STS-LIVE and all other STS4 components. 

The STS4 WBS Data Acquisition is a battery-powered wireless Access Point with an integrated Ethernet switch for backup wired communication. The Base Station is necessary to generate the STS wireless network that all the STS4 wireless nodes communicate with. This network is also used for connecting the computer that is operating the STS-LIVE application.

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.

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Control Unit Ethernet Communication
AP10/100 Base-T, +24 Vdc Proprietary (Passive) Power-Over-Ethernet (Connection to Access Point)
POE10/100 Base-T, +24 Vdc Proprietary (Passive) Power-Over-Ethernet (Alternative Connection)
PC10/100 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
TypeDual Band Wireless Access Point
2.4 GHz WirelessIEEE 802.11b/g/n, 27 dBm
Access Point Mode (wirelessly connect STS4 hardware and PC)
5.0 GHz WirelessIEEE 802.11a/n/ac, 27 dBm
Bridge Mode (wirelessly connect between multiple STS4-WBS)
ALPT Transceiver
Radio Frequencyn/a900-928 MHz2.400 – 2.483 GHz
Range1n/a4 miles (6.5 km)2.5 miles (4 km)
Typical Power Consumption
Typical Power Consumption (AP + ALPT)5.1 W5.8 W5.4 W
Estimated Operating Time218 Hours16 Hours17 Hours
Assembled Size (W x L x H)24 x 24 x 42 in (610 x 610 x 1220 mm)
Assembled Weight10.5 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.


  • 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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