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A hilly terrain can create the illusion that the target is following the
tracker, although it is actually in front of it. Here the transmitted signals
are reflected from large hills. They appear to be originating from a location
behind the tracker. As long as forward motion is maintained, this effect will
be brief.
Multiple Signal Reception
The receiving units of the E-TRAK/R system will pick up all signals within
its range of sensitivity. It would be rare for it to pick up another unit
operating in your vicinity. It is more likely that it will pick up secondary
signals from your tracking operation. The E-beacon ID and E-TRAK/R
sensitivity allows you to minimize the potential of receiving and interpret-
ing beacons other that the one you’ve selected.
This phenomenon is called multipath. The beacon transmission is radiated
in all directions from the target. Multipath results when an object reflects
part of the beacon’s signal. The tracker receives both the reflected wave
and the primary signal. While multipath results in multiple indications of
target bearing, the primary signal will be the stronger one.
OPERATION
E-TRAK/R
Beacon
Summary of Contents for 5000
Page 1: ...RDF Pulse and GPS Enhanced Tracking System...
Page 29: ...35 NOTES...
