Replacement of elements – Lectrosonics ALP700A User Manual

Page 3

Advertising
background image

Attach hex nut after rod is cut to length

+/- .011" accuracy

Cut off this end
to length listed in table

Replacement of Elements

The rod elements of the antenna are secured to the booms with hex nuts.
To replace an element, unscrew the nut and remove the threaded end of
the rod.

The repair kit includes a full length rod, hex nut and plastic cap. Remove
the nut and plastic cap for measurement and cutting.

The length of each element is critical to ensure maximum performance of
the antenna. Measure the overall length accurately and cut off the non-
threaded end of the rod to the exact length shown in the table below.

Overall Length to Cut Rods

Rod #1 (shortest)

2.840”

Rod #2

3.066”

Rod #3

3.335”

Rod #4

3.915”

Rod #5

4.450”

Rod #6

4.990”

Rod #7

5.440”

Rod #8 (longest)

5.875”

The BNC jack on the end of the antenna connects
to a coaxial line inside one of the rails. The
coaxial line is formed by a brass rod that runs
through a tunnel in the center of the rail.

Adjust the hex nut close to the end of the threads
as shown. Screw the replacement rod into the
threaded hole in the rail.

Cross Section/End View

Coaxial line

Internal
brass rod

Threaded holes
for rods

Advertising