Southwest Microwave has expanded its high-reliability digital microwave sensor array with the Intrepid model 336-33464, a standalone volumetric perimeter sensor for maximum-security sites such as nuclear power plants, government laboratories and military installations.
The new sensor mitigates risk of site compromise and prevents nuisance alarms by with advanced embedded digital signal processing (DSP) to discriminate between intrusion attempts and environmental disturbances, according to the company.
Designed for maximum protection against physical tampering and harsh environmental conditions, model 336-33464 features heavy-duty components and packaging, integrated radome tamper switches and optional steel enclosures for external connections. Advanced dual EMI/RFI shielding at radome and circuit board protect sensor electronics against electromagnetic or radio frequency interference. Standalone configuration and on-board relay alarm outputs for monitoring deter the risk of hacking or other digital compromise, the company states.
The Intrepid sensor operates at K-band frequency. Because K-band is 2.5x higher than X-band, the multipath signal generated by an intruder is more focused, enhancing detection of stealthy intruders, the company explains. K-band frequency also limits susceptibility to interference from air/seaport radar or other microwave systems. Model 336-33464 also features six crystal-controlled, field-selectable modulation channels with narrow-band filtering to prevent interference between sensors.
“This product enhances the flexibility our digital microwave sensors can offer to our highest-security customers,” says Maira Zanrosso, Southwest Microwave’s director of sales and marketing. “These units can be dual, triple or quad-stacked with model 334-33465 digital microwave links — coupling advanced detection performance with optimal protection against prone crawling or bridging attack.”
The device’s antenna beam width is approximately 3.5° in the horizontal and vertical planes. A true parabolic antenna assures long-range operation, superior beam control and predictable Fresnel zones, according to the company. Advanced receiver design increases detection probability by alarming on partial or complete beam interruption, increase / decrease in signal level or jamming by other transmitters.