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The next step in wireless sensing and radio telemetry

 Encounternet Products

Each Encounternet system that we build is unique and is tailored to the customer's particular needs. There are several existing options for tags and base stations, but if nothing fits your requirements then we can work with you to design a custom solution.

Due to the custom nature of each system build, we do not stock assembled hardware. Our current procedure is as follows:
  1. Consultation: we will work with you to determine first, whether Encounternet is a good fit to your needs, and second, what sort of system you will need (tag specs, number and type of base stations needed, etc). At the end of this process we will have a detailed specification of your system, and can send you a price quote and construction timeline.
  2. Construction: system construction has two phases: fabrication, where we contract with a circuit manufacturing company to fabricate the tag and base station circuit boards, and assembly, where we assemble and test the tags and base stations. We do not carry board inventory and so require that at least 50% of the system cost be paid up-front to cover initial construction costs.
  3. Shipping and support: we will ship the system to you and provide support for your deployment. In some cases, particularly for large and complex systems, one of us can travel to your location or field site (at your expense) and provide training and assistance.
For further inquiries, and to start the consultation process, please contact John Burt

System components


The core of every Encounternet tag is a circuit board containing a MSP430 microprocessor, a CC1101 433 MHz transceiver chip, and a nonvolatile memory chip. Tags have expansion port pins at their edges, allowing them to interface with sensors and digital devices. Depending on the battery used, tags may include an additional power conditioning circuit board. Most tags are embedded in epoxy and cast in a mold.

There are several tag styles that have been developed, from a 0.7g small bird tag to much larger tags for marine mammals. During the initial consultation, we will determine which type of tag design will be best for you.

Base Stations

Base stations currently come in two varieties, both of which are waterproof and ruggedized for harsh conditions. Since log data is downloaded wirelessly, base stations can be left unattended for long periods

The alkaline battery model is powered by two D-cell batteries and is housed in a Pelican case for easy battery access.

The solar powered model runs on a 2000 mAh lithium polymer battery charged by a solar panel on the top of the enclosure. This model is screwed shut, with a waterproof O-ring seal.

Master Node

The master node device is a modified base station mounted onto a yagi directional antenna, with a PVC tube handle. The master node connects to a PC computer with a serial-USB converter cable. The device is waterproof and rugged.

Software and Firmware

The system is shipped with a PC program called Pymaster, which interfaces with the master node. Using Pymaster, you can download logs from tags and base stations, set device parameters (such as tag clock, pulse rate, etc), track tagged animals, upload firmware to devices, and perform many other maintenance tasks.

All devices are shipped with the latest version of firmware and can run "out of the box". However, in some instances, you may need custom firmware. We can provide software development services to meet your customization needs.
Training, Consulting, and Support

We can provide training and system support, either remotely or on-site.