Soutwest Microwave MicroWave 330, Installation Manual

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17 Version 0
Do not mount units on a cyclone fence or any vibrating surface. A recommended mounting post is a 3 ½ inch
(9cm) galvanized pipe (outside diameter 4 inches, 10cm), sunk into the ground in a concrete base, and
protruding above ground level to a height of 4 feet (1.2m). Mount the Transmitter and Receiver 2 ½ to 3 feet
(0.76 to 0.91m) above ground level and allow for height adjustment of at least plus or minus 6 inches (15cm).
Height adjustment may be required during final alignment to achieve optimum protection pattern. An 18-inch
(46cm) ½ inch (1.3cm) flex conduit is recommended between conduit fitting of T/R and rigid conduit.
Stacking MicroWave 330
For high security applications where “prone crawl” detection is required, the MicroWave 330 can be stacked to
provide a high probability of detection with a very low nuisance/false alarm rate and a reduction in dead zone as
shown in Figure 17.
To eliminate mutual interference between links, one link can be rotated 90° to change the polarity from an E-
plane (vertical polarization) to an H-plane (horizontal polarization) which will cross polarize the waveguides to
eliminate potential interference. MicroWave 330 includes synchronization circuitry that can also be utilized to
eliminate potential interference.
1/2" (1.3cm)
Flexible
Conduit
4" (10.2cm) O.D.
Galvanized Pipe
Gnd. Lug & Wire
BX20 or BX35
Junction Box
(optional)
Grounding
Rod
per Local
Electrical
Code
Install Per
Local
Electrical
Code
330
330
#6 AWG
Ground
Bus
Cap
Concrete
24"
(61cm)
Tamper, Com, Sync and Power Lines
36"
(0.91m)
Nominal
48"
(1.22m)
Nominal
12" (30cm)
Nominal
17"
(43.2cm)
Nominal
Figure 17 – Stacked Mounting Detail
1. Remove the MicroWave 330 T/R Link(s) from the shipping containers. Separate the swivel assembly
from the mounting plate by turning the large nuts counter-clockwise. Large nuts require 1 ¼ inch
(32mm) open-end wrench.