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Innovative tracking solutions since 2003

System Components

Basic System Components

The single antenna reader will drive one antenna. The multiple antenna reader works with up to four antennas, scanning one at a time. Each antenna needs a tuning capacitor. The single antenna reader includes one and the multiple antenna reader includes two. Additional tuner boxes will be needed to use 3 or 4 antennas. The multiple antenna reader cannot drive large antennas. See limits on the product page.
Tuner boxes (up to 2 more)

Two tools are needed to construct antennas. An inductance meter measures the loop's L value so that tuning capacitors can be adjusted to match. A tuning indicator is used to precisely tune an antenna to the resonant frequency. A ceramic tuning tool is useful since using metal tools can affect the tuning.


PIT tag prices depend on the number purchased. Injectors are chosen to match the diameter of the tag.

$2 - $3
$4 - $195
$4 - $7.50

The reader is operated using a waterproof PDA or any Windows/Mac/Linux computer with a serial port or USB to serial adapter.


A proximity reader is used to record the numeric identifiers when tagging fish.

$880 - $980

Antenna wire costs will depend on which size is used and the size of the loop. Antennas can be hung from a rope that is stretched tight, built into PVC pipe or other type of non-metallic mount that is approprate for the project.

Antenna wire
Hardware, materials

Power for the system can be provided by deep cycle marine batteries and swapping them every few days. Batteries can be connected in parallel to increase capacity and run for a longer time.

Usually the reader and batteries are placed in a larger enclosure to protect against weather and vandalism. Customers have used insulated plastic picnic coolers, secure jobsite metal boxes and pits lined with concrete.

Power source (AC supply, batteries)
Outdoor enclosure