5
50,144,430MHz
☆
Coil installa�on image and SWR characteris�cs
example when using in 3 bands or 4 bands
It is possible to operate up to 9 bands by adding each HF band coil
to the side bracket.
SWR characteris�cs are based on the following
4 to 9 bands
characteris�c
examples.
28,50,144,430MHz
21,50,144,430MHz
1.0
1.5
2.0
440
445
450
Freq.(MHz)
SW
R
1.0
1.5
2.0
145
146
147
Freq.(MHz)
SW
R
1.0
1.5
2.0
50
52
54
Freq.(MHz)
SW
R
51
53
1.0
1.5
2.0
440
445
450
Freq.(MHz)
SW
R
1.0
1.5
2.0
145
146
147
Freq.(MHz)
SW
R
1.0
1.5
2.0
50
52
54
Freq.(MHz)
SW
R
51
53
1.0
1.5
2.0
21
21.225
21.45
Freq.(MHz)
SW
R
1.0
1.5
2.0
440
445
450
Freq.(MHz)
SW
R
1.0
1.5
2.0
145
146
147
Freq.(MHz)
SW
R
1.0
1.5
2.0
50
52
54
Freq.(MHz)
SW
R
51
53
1.0
1.5
2.0
28
29
30
Freq.(MHz)
SW
R
28.5
29.5
28MHz Coil (L-28)
28MHz Tip element
Element length Approx. 75mm
Tip element fixing screw
Element bracket
Auxiliary element
Upper element
(φ4×L 45mm)
50MHz choke coil
70cm band Phase shi�er
Lower element (φ5×L 310mm)
Element fixing screw
Bending mechanism
Middle element
(φ4×L 405mm)
Feeding sec�on
21MHz Coil (L-21)
21MHz Tip element
Element length Approx. 80mm
Tip element fixing screw
See the
t
able on page 4
f
or the �p
eleme
n
t length L of each HF band c
oil.
Please no
t
e th
a
t depending on the
combin
a
�on of each band coil, there are
bands th
at a
re difficult
t
o impr
ov
e SWR
.
Same as the le
ft
figu
re
