Length B
2. Pass one set of radial unit through the bottom pipe and position and fix it according to the
frequency to be used. (See frequency adjustment chart)
3. Pass the other radial unit through the bottom pipe, and fix the lower radial unit at the
position where the height of the upper end of the radial clamp matches the lower end of the
pipe of the upper radial unit. (See Fig.5)
At this time, the radial pipe of the upper and lower radial unit should be shifted by 45 °.
Unit A
Unit B
Unit A
Unit A
Unit A
Unit A
Unit B
Unit B
Unit B
Unit B
View from the top side
Assembling the Top element part
1. Insert the Top element B into the Top element A, adjust the length
according to the frequency to be used, tighten the hose clamp and fix.
(See frequency adjustment chart)
2. Thread the coaxial cable from the bottom of the bottom pipe and take
out the connector at the top from the top. Insert the connector of the
power supply part into the connector pulled out, waterproof the
fitting part, and then insert the connector part into the bottom pipe.
3. Tighten the hose clamp to fix.
Length A
⑤ Hose clamp (Small)
Installation of Mount bracket
1. Pass through 2 sets of mounting brackets from the bottom of the bottom pipe, fix the
distance between the upper and lower brackets to about 150 to 180 mm and fix it in the
same direction. The position to fix the bracket should be within 250 mm from the lower end.
2. Fix the mounting bracket part to the mast. The mast diameter that can be installed is in the
range of Φ 30 to 62 mm.
Antenna Hold Area
① Top element A
w/ Feeding section
③ Top element B
⑥ Hose clamp (Large)
Coax.Cable
w/ PL-259(M-P) Connector
Frequency Adjustment Chart
A is the length of the upper side from the feeding part.
B is the length from the upper end of the bottom pipe to the upper tip of radial clamp.
⑪ U-Bolt
⑫ Mount Bracket
⑬ Hex Bolt
⑭ Spring Washer (M6)
⑮ Hex Nut (M6)
A
B
About the installation position of the antenna
It is desirable that there are no obstacle metal around the antenna , but when
installing it on the side of the tower, please keep it away by at least 60 cm.
Antenna Mast [Φ30 -62mm]
- Page2 -
- Page3 -
Fig.2
Radial element
Fig.3
Mount bracket
Fig.4
Top element
Fig.5
Element length tuning
A
B
Align the position of the lower radial clamp
Assembling of the antenna is completed if the length is adjusted
according to the operating frequency.
