Perimeter Security Solutions - Microwave Sensors
Model 300B Multiple Range Microwave Link
Model 300B Multiple Range Microwave Intrusion Link, represents a major
technological advance in outdoor perimeter protection. State-of-the-art
circuitry, coupled with interchangeable antenna elements allow the link
to be used in nearly any situation. The 30 meter (100 ft) short range,
wide angle pattern is ideal for gate protection, while the 107 meter
(350 ft) mid range or 183 meter (600 ft) extended range patterns can be
used for full perimeter protection.
Through the use of the GaAs
FET microwave technology, Model 300B is able to operate with very low
current drain (40mA at 12 VDC per link). Phase Locked Loop (PLL) signal
processing in the receiver increases detection probability by alarming
on beam break, increase or decrease signal level due to multipath
effects or jamming by other transmitters. The wide dynamic range
Automatic Gain Control (AGC) circuit permits the link to adapt to
various site conditions or changes in weather patterns. Four field
selectable modulation frequencies in the transmitter and PLL filter in
the receiver permit multiple links to be used in a single area.
300B solid state electronics and antenna are mounted on a rugged metal
baseplate and covered by a molded ABS radome. The link includes a
universal mounting bracket which allows mounting to flat surfaces or 102
mm (4 in) outside diameter posts. A distinctive earth tone color scheme
allows the link to blend in with the surrounding area.