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  Each 310B-33456 transmitter and receiver is packaged in a weatherproof,
explosionproof enclosure with front access to controls and test
points.
The 310B-33456 operates at K-Band (24.125Ghz) frequency, achieving
performance not possible with X-Band microwave links (10.5Ghz). Because
antenna beam width is approximay 7.5 degrees in both the
horizontal and vertical planes, the sensor will operate within very narrow
corridors. 

Because K-Band frequency is 2.5 times higher than X-Band, the multipath
signal generated by an intruder is also 2.5 times higher and detection
of slow-moving intruders is correspondingly better. With its superb beam
control and higher multipath frequency, Model 310B-33456 provides unmatched
detection performance.

Phased Locked Loop (PLL) signal processing in the receiver increases
detection probability by alarming on partial or complete beam interruption, increase or decrease in signal level or jamming by
other transmitters. Its Automatic Gain Control (AGC) circuit permits the receiver to compensate for varying site conditions or
changes in the weather.

Operating at K Band frequency, Model 310B-33456 is inherently less susceptible to interference from airport landing systems,
aircraft radar or other microwave intrusion systems. Four field-selectable modulation channels with narrow band PLL filters allow
several Model 310B-33456 links to be used together without mutual interference.