Find two 6'-8" aluminum channels (BA). These form the boom and phasing line assembly. Align these back-to-
back, spaced approximately 3/4" apart as shown in
Figure-A Detail-1
. Assemble as follows:
Find two insulating spacer plates (92). Using 10-24 x 5/8" screws and #10 hardware, install one on each side of the
boom at mounting holes provided between EL13 and EL14 toward the rear of the boom (see
Figure-A, Detail-2
).
3
ASL670
Check and tighten all hardware.
KEY
P/N DISPLAY
DESC
SIZE
QTY
BA
ASL-
BOOM
1" x 1” x 80"
2
670BA
ASSEMBLY
(2.54 x 2.54 x 203.2 cm)
FL
ASL-
FEEDLINE
__
1
670FL
ASSEMBLY
4
010104
SS FLAT
1/4"
4
WASHER
(.64 cm)
11
010011
SS HEX
8-32
2
NUT
20
010220
SS HEX
10-24
16
NUT
33
010233
SPLIT
# 10
16
LOCK
WASHER
41
011941
SPLIT
# 8
2
LOCK
WASHER
60
015060
SS FLAT
# 10
16
WASHER
Feedline
Block
88
92
92
EL 14
EL 1
Front
Rear
FL
11
BA
BA
DETAIL 3
DETAIL 4
DETAIL 1
84
85
60
94
95
33
20
91
KEY
P/N DISPLAY
DESC
SIZE
QTY
84
010084
SPLIT
1/4”
4
LOCK
(.64 cm)
WASHER
85
010085
SS HEX
1/4” - 20
4
NUT
(.64 cm)
88
205188
LPA
___
1
MOUNTING
PLATE
91
015291
SS MACHINE
10-24 x 5/8”
16
SCREW
(1.59 cm)
LPA
92
205292
SPACER
___
4
PLATE
94
015294
SS HEX
1/4” - 20 x 1-3/4”
4
BOLT
(.64 - 20 x 4.45 cm)
95
325295
ALUMINIUM
3/8” x 3/4”
4
SPACER
(.95 x 1.9 cm)
41
41
11
BA
92
FIGURE A
3/4”
(1.9 cm)
BA
EL 1
Front
Locate the feedline block (FL). Carefully spread the boom
channels apart at the front for the antenna and slip the
block into its mounting holes (see
Figure-A, Detail-3
).
Please note that a green dot will be painted on the mounting
block threaded stud (FL) that is connected to the shielded
side of the coax.
Find the remaining two plastic insulating spacer
plates (92). Install both at the mounting holes
located between EL7 and EL8 (
Figure-A
).
Find the LPA mounting plate (88) and mount as shown in
Figure-A, Detail-4
using 1/4"-20 x 1-3/4" mounting bolts.
Before inserting each bolt, install a 3/8" x 3/4" O.D. crush
spacer (95) inside the channel.
1. Boom Assembly:
DETAIL 2
Note: Green Dot Side
