BOOM ASSEMBLY
—MARKING THE BOOM
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12
•
The location of the element plates, mounting plate, and truss attachments is critically important. Take care when
measuring and double check your measurements.
•
Pick one end of the boom (it doesn’t matter which) to be the back of the antenna. Measuring from the back of the
antenna mark the boom with a permanent marker at the locations listed in the table below. Label the marks with the
indicated labels for future reference.
FRONT
BACK
Description
Label
Distance (in)
Distance (cm)
Reflector Element Mounting Plate
REF
3
7.62
Truss Attachment
T1
53.75
136.5
Driven Element Mounting Plate
DVR
80
203.2
Director 1 Element Mounting Plate
D1
168
426.7
Mast Plate
MAST
210
533.4
Director 2 Element Mounting Plate
D2
286
726.4
Truss Attachment
T2
397.75
1010.3
Director 3 Element Mounting Plate
D3
463
1176