AST Edition 59 | Page 22

In www contrast . AmericanSecurityToday to all other . com leaky coaxial cable sensors , TD100 does not require in-line termi- nations .

Each discrete TD100 system has its own unique RF iden- tifier which allows the system to reject RF signals coming from other sources , including other TD100 systems .

This feature allows multiple systems to be in proximity without compromising perfor- mance .

Some of the many advantag- es of the TD100 include :

Rejection of multipath inter- ference :

A problem with previous RF buried sensors is how they in- teract w i t h metal objects such as fences .

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T h e signal jumps

to a fence and then re-joins the static field further down the detection area .

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This phenomenon , which generates an alarm in com- petitive systems , is known as multi-path interference .

The Terrain Defender re- jects these false alarm oc- currences by looking at the sensor cable signal from both directions using E2EC .

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