Visualization and
Signature Technology
Automated Assessment of
Handheld Detection Skill
VAST stands for Visualization and Signature Technology. At its core, VAST is a very accurate position tracking system for handheld detectors. Using positional data, VAST delivers rich visual feedback to support handheld skill assessment. With VAST, it is quick and easy for instructors to “see” how good or bad an operator is. Thus, enabling objective evaluation and the delivery of targeted instruction. VAST is a quick to assemble training kit that fits in a hand-carry case.
See VAST in action

How VAST Works
VAST provides visual feedback by tracking the 6D position of a detector search head (x, y, z, yaw, pitch, and roll). It consists of one VAST Transmitter, VAST Tracking Belts (x2), VAST Controllers (x 2), and an Android Tablet.

The VAST Transmitter module attaches to the shaft of a handheld detector. The device contains ultrasonic emitters and a miniature inertial measurement unit (IMU).

The VAST Tracking Belts line either side of the training area. They contain ultrasonic receivers located at regular intervals.

The VAST Controllers (attached to the Tracking Belts) handle computation and communications.

The Android Tablet processes positional data and visualizes detector sweep search information.
Easy Set Up & Operation
Attach Transmitter
Roll Out Belts
Train With Visual Feedback
Compatible with
a Wide Range of
Technical Specifications
VAST is a MIL-Spec and IP-55 rated system. It operates on commercial (2.4 GHz) wireless bands and works with AA batteries. The included Android Tablet is a consumer grade device with Li-Ion batteries. MIL-Spec and IP ratings are not applicable to the Tablet.
Tracking Length 1 - 14 m ( 3 ft - 46 ft )
Tracking Width 1 - 3 m ( 3 ft - 9 ft )
Positioning Accuracy 8 cm ( 3 in ) *Detector Head Positioning
Angular Accuracy 4 degrees
Carrying Weight 22.1 kg ( 48.8 lbs ) *Including case
Transmitter Weight 300 grams ( 10.6 ounces) *With Batteries
Case Dimensions L 62 cm ( 24.4 in ) x W 50 cm ( 19.7 in ) x D 32 cm ( 12.6 in )
Setup and Teardown time Under 10 minutes (2 users)
Water and Dust Rating IP 55 (N/A to Android tablet)
Operational Temperature -20C | +49C ( -8F | 120F ) *N/A to Android tablet
Storage Temperature -46C | +71C ( -51C | 160C ) *N/A to Android tablet
Radio - Low Power 3dBm EIRP
Radio - High Power 20dBm EIRP
Radio - Average Power 6dBm EIRP
Radio - Frequency Range 2.4–2.4835 GHz (ISM band)
Ultrasonics - Frequency Range 37-43 kHz (Forward facing), 200 kHz (Downward facing)
Ultrasonics - Sound Pressure Level 120dB at 30cm (Forward facing)
Continuous Operation Time Transmitter Approximately 12 hours
Continuous Operation Time Controllers Approximately 16 hours
Continuous Operation Time Tablet Approximately 7 hours
* Tracking accuracy depends on precision of belt alignment, ground slope, and other setup conditions.
Is the U.S. Department of Defense involved in the development of VAST Training?
Yes, VAST Training is a joint R&D effort between Red Lotus Technologies and the U.S. Army Research Laboratory.
Does VAST Training track the detector search head?
Yes, it tracks the position of the detector search head.
Can VAST Training be used indoors?
Yes, the system can be used both indoors and outdoors.
Can one Android tablet monitor feedback from multiple systems?
Currently, the VAST Training Android application can only display feedback from a single VAST Training system.
Can VAST Training track more than one detector on a training lane?
The current version only supports one detector per training lane.
Can I use VAST Training with a tablet that I already own?
VAST is optimized for the tablet device included with the system. However, for sufficiently large orders, we can port the Android application to an Android tablet model of the customer's choosing (e.g. "ruggedized" Android tablet). Please contact us for further details.
What is the Android tablet that is included with the system?
We include a commercial off-the-shelf tablet with each VAST Training system. Therefore, the exact model included in an order will depend on the product release cycles of the major Android tablet manufacturers.
How can I upgrade the VAST Training Android App?
Customers will be notified by email when an upgrade is available. In order to upgrade, make sure that the tablet is connected to a WIFI network and select the upgrade option found in the App. A Google account is not required for upgrade.