The BCA Tracker DTS was released in 1997 and discontinued in 2018.
Summary: The Tracker DTS from Backcountry Access (BCA) was a very popular beacon. It set the standardas the first two-antenna transceiver in 1997. However, it has onethe shortest ranges of the digital beacons and many of the newer digitalbeacons have easier to use controls. The DTS was finally retired (well, except forsales to the military) in 2018. The Tracker2 and Tracker3 have many improvements over the Tracker DTS.
(Note that BCA increased the recommended search strip width of theTracker DTS, from 20 meters to 40 meters, during 2010. The 2010/11 TrackerDTS user manual mentions both 20 and 40 meters, but the manufacturer has informed me that they now considerthe recommended width to be 40 meters. I'd stay closer to 20 meters.)
Searching: Intuitive blinking lights indicate the direction and the DTS senses changes in direction quickly. If you get off-course by a few degrees, thelights promptly indicate the new direction.
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BCA Tracker S
The fine search can be a little confusing, becausethe direction indicators (lights) continue to point (oftenaway from the victim) no matter how close you are to the victim. To compensate for this, ignore the directionallights and use the distance numbers when you are within2 or 3 meters of the victim.
Because the Tracker DTS has only two-antennas (unlike the Tracker2 and Tracker3 which have three antennas), it is unable to resolve spikes. In an extensive spike testing session, the often reported that it was directly over the transmitting beacon when it was actually 1.1 meters to the side.
Multiple Burials: The Tracker DTS and the Tracker2 have a"special mode" button that narrows the reception "arc" to 70° in front and behind you. The concept isthat after locating the first transceiver you can press the special mode button to narrow the arc and only searchfor signals in front and behind the transceiver.
This assumes that you know there are multiple victims, because the Tracker DTS does not display an indicationof multiple signals (the Tracker2 and Tracker3 do).
The special mode definitely requires practice. Your time will be better spent mastering thegeneric multiple burialsearch techniques (i.e., expanding circle and micro search strips) rather than learning how to use the conceptually-complex special mode. The DTS does nothave the ability to "suppress" (aka, "mark") a transceiver.
(Read about multiple burials and transceiver marking on AvyRescue.com.)
Controls: Turning the DTS on is obvious. Changing to search mode is easy, but not intuitive (youpress the large red button until the letters "SE" are displayed at which point you release the button).The yellow " special mode" button narrows the range to help find multiple victims (many users tell me theythought it was used to mark a victim during a multiple burial).If you turn the unit on while pressing the yellow button, the Tracker DTS will automatically switch from receive to transmit mode if it doesn't receive a signal ina few minutes.
