22XB
FIGURE C
BOOM
11
41
26
28
ELEMENT
120 & 232
FIGURE D
Key Element #
Inches
CM
EA ......... 1 .......................... 40 ........... 101.6
EB ......... 2 .................... 39-1/2 ........... 100.3
EC ......... 3 .................... 37-1/4 ............. 94.6
ED ......... 4 .................... 36-3/4 ............. 93.3
EE ......... 5 .................... 36-3/8 ............. 92.4
EF ......... 6 .................... 35-7/8 ............. 91.1
EG ....... 7, 8 .................. 35-1/4 ............. 89.5
EH ......... 9 .......................... 35 ............. 88.9
EI ...... 10, 11 ................ 34-3/4 ............. 88.3
TABLE A
Element Lengths
11
010011
SS HEX
8-32
20
NUT
26
190026
ALUMINUM
7/8"
20
BRACKET
(2.2 cm)
28
190028
ALUM HALF
20
WASHER
41
010941
SS SPLIT
#8
20
WASHER
120
010120
SS MACHINE
8-32 x 2"
8
SCREW
(5.1 cm)
232
010232
SS MACHINE
8-32 x 2-1/2"
12
SCREW
(6.4)
#3 - MOUNT ELEMENTS
Sort solid rod elements by length using Table A. Group into two separate
sets, one for each plane of the antenna. Refer to figures D and E as guides
in mounting elements. Install the element (EA) using the hole closest to
the rear. The next hole along the boom is for a the driven element with the
polarity switcher (figure B). Install the progressively shorter elements
working towards the front of the boom. Remove temporary pins as you
proceed and replace with elements. Use screw 120 on sections BA and
BE. Use screw 232 on tubes BB and BD. Note: the pins joining the rear
boom BA to the boom BB and front boom BE to BD should not be removed.
After completion of one plane of elements, repeat the installation of
elements for the other plane.
KEY
P/N
DESC.
SIZE
QTY
41
26
125
125
DC
251
251
BN
124
7-3/4"
(19.7 cm)
41
11
79
11
232
BOOM
41
11
79
ET
ET
LOOP ONCE
AND TAPE.
53
53
7-3/4"
(19.7 cm)
11 41
124
DC
ET
ET
11
41
FRONT
4
