ID
Part #
Description
Dimensions
Qty
11
010011
SS Nut
#8-32
8
53
050053
Black
1/2”
2
Plastic Cap
(1.3 cm)
77
050077
Black
3/8’
12
Plastic Cap
(0.9 cm)
120
010120
SS Machine
#8-32 x 2”
4
Screw
#8 x 5.1 cm)
123
010123
SS Machine
#8-32 x 1-1/2”
4
Screw
(#8 x 3.8 cm)
407
030407
Worm
5/8”
12
Clamp
(1.6 cm)
409
030409
Worm
11/16”
14
Clamp
(1.7 cm)
410
030410
Worm
1”
18
Clamp
(2.5 cm)
411
030411
Worm
1-1/8”
6
Clamp
(2.9 cm)
412
030412
Worm
1-1/2”
6
Clamp
(3.8 cm)
565
124565
Fiberglass
5/8” x8”
2
Insulator
(1.6 x 20.3 cm)
566
124566
Fiberglass
7/8” x 8”
1
Insulator
(2.2. x 20.3 cm)
567
124567
Fiberglass
1” x 8”
1
Insulator
(2.5 x 20.3)
941
011941
SS Lock
#8
8
Washer
EA
X79EA
Aluminum
1-1/4” x 72”
1
Tube
(3.2 x 183 cm)
EB
X79EB
Aluminum
1-5/8” x 52”
4
Tube
(2.8 x 132 cm)
EC
E79EC
Aluminum
1” x 36”
4
Tube
2.5 x 91 cm)
ED
X79ED
Aluminum
3/4” x 36”
8
Tube
(1.9 x 91 cm)
EE
X79EE
Aluminum
1/2” x 36”
6
Tube
(1.3 x 91 cm)
EF
E79EF
Aluminum
3/8” x 48”
4
Tube
(1.0 x 122 cm)
EG
E79EG
Aluminum
1” x 48”
1
Tube
(2.5 x 122 cm)
EH
E79EH
Aluminum
7/8” x 48”
2
Tube
(2.2 x 122 cm)
EJ
E79EJ
Aluminum
3/8” x 32”
4
Tube
(1.0 x 81 cm)
EK
X79EK
Aluminum
1” x 24”
2
Tube
(2.5 x 61 cm)
EL
X79EL
Aluminum
1-1/4” x 36”
2
Tube
(3.2 x 91 cm)
EM
X79EM
Aluminum
1/2” x 24”
6
Tube
(1.3 x 61 cm)
EN
X79EN
Aluminum
3/8” x 36”
4
Tube
(1.0 x 99 cm)
EP
X79EP
Aluminum
1-1/4” x 48”
1
Tube
(3.2 x 122 cm)
ER
X79ER
Aluminum
1-1/8” x 48”
2
Tube
(2.9 x 122 cm)
ES
X79ES
Aluminum
1/2” x 36”
2
Tube
(1.3 x 91 cm)
ET
X79ET
Aluminum
7/8” x 36”
2
Tube
(2.2 x 91 cm)
EU
X79EU
Aluminum
3/4” x 36”
4
Tube
(1.9 x 91 cm)
EV
X79EV
Aluminum
1” x 36”
2
Tube
(2.5 x 91 cm)
EY A34SEF
Aluminim
1” x 5-1/4”
2
Tube
(2.5 x 13.3 cm)
6
5
4”
(10.16 cm)
1/4”
(.63 cm)
565
941
11
123
941
11
123
Figure 5C
566
941
11
120
941
11
120
Figure 5B
See Fig. 5D
See Fig. 5D
See Fig. 5C
FIGURE 5
ER
ER
EP
EV
ES
TB
T9
EY
EJ
EM
EU
EF
EE
EU
ED
ET
EK
EC
EN
EM
EN
ED
EE
EB
EL
ED
EM
EJ
EH
EG
ED
EE
EF
EC
EB
EA
ED
EE
EF
EC
EB
ED
EM
EJ
EH
EC
EN
ED
EE
EB
EL
ED
ET
EK
EN
EM
EF
EE
EU
EJ
EM
EU
EV
ES
TB
T9
EY
See Fig. 5B
86”
(218.4 CM)
7”
(17.8 CM)
24”
(60 CM)
111”
(291.9 CM)
137”
(348 CM)
208”
(528.3 CM)
147-1/2”
(374.6 CM)
220”
(558.8 CM)
220”
(558.8 CM)
147-1/2”
(374.6 CM)
208”
(528.3 CM)
137”
(348 CM)
111”
(291.9 CM)
86”
(218.4 CM)
7”
(17.8 CM)
407
409
410
411
412
410
410
407
409
410
411
412
407
409
410
407
409
410
407
409
407
409
411
412
410
410
410
409
410
410
407
409
410
411
412
410
411
412
407
409
410
407
409
410
407
409
407
411
412
410
409
410
410
407
409
409
567
566
565
565
CL
Figures 5, 5A, 5B, and 5C show the steps for element assembly. Identify the tubing sections required for each element
using the Element Subassembly Parts List.
Each telescoping tubing section is inserted 4 inches into the larger section except where noted in Figure 5. Adjust the
length of the end tubing section to give each element the proper total half length. All dimensions should be within 1/4 inch
of the values given. Mark the center of tubing sections EA, EG, and EP with a marker as shown in Figure 6A. These
marks will be used in Step 4 when elements are mounted on the boom. The dimension for tube ES is measured from
the end of trap TB. The dimension between traps TB and T9 is measured between the ends of each trap. The 77 inch
dimension from element #7 center is measured to the end of trap T9. Insure all traps are installed with arrows pointing
toward the boom. Also position trap drain holes so they will be facing the ground when the antenna is in its final position.
Unless indicated otherwise, telescope
elements 4” (10.16 cm) and tighten
the worm clamp.
IMPORTANT
77
77
77
77
77
77
53
CL
ER
EP
ER
Butt ends of ER’s together
at the center of EP
24”(61cm)
53
77
77
77
77
77
77
3-Element Assembly
567
941
11
120
941
11
120
Figure 5A
Install all worm clamps as shown. Tighten all worm clamps until the telescoped tubing cannot rotate
inside the larger tube. Take care not to overtighten and strip the worm clamp. Extra worm clamps are provided.
Note that all element sections can be fastened using a self-taping screw at each tubing transition. Use
stainless screws for best performance. Properly installed worm clamps will provide years of trouble free
service.
The X7 is constructed entirely with .058-inch wall tubing. This creates a tight transition with the closest
possible fit and better ice-loading characteristics than antennas constructed with thinner wall tubing.
Elements 3, 4, 5 and 6 have fiberglass center sections. Reference figures 5A, 5B and 5C for proper assembly.
After mounting element end caps (53, 77) punch a small hole (1/4”) in the bottom edge (ground facing side)
of the cap for water drainage.
Element #1
Element #2
Element #3
Element #4
Element #5
Element #6
Element #7
77”
(195.6 CM)
35”
(88.0 CM)
77”
(195.6 CM)
35”
(88.0 CM)
Final Length
Adjustment
Final Length
Adjustment
Final Length
Adjustment
Final Length
Adjustment
Final Length
Adjustment
Final Length
Adjustment
Final Length
Adjustment
Final Length
Adjustment
Final Length
Adjustment
Final Length
Adjustment
Final Length
Adjustment
Final Length
Adjustment
8” (20.3 CM)
Insert
8” (20.3 CM)
Insert
