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| DUO8 15/20 | 15 m band | 20 m band |
|---|---|---|
| Gain dBi: (20 meters above the ground) | 14.5 | 13.0 |
| Gain dBd free space: | 6.45 | 5.6 |
| F/B: | 20 | 20 |
| Active elements: | 4 | 4 |
| Bandwidth kHz S.W.R. ≤ 1.5:1 | 450 | 350 |
| Boom Length: | 1000 cm/32.80 ft | |
| Turning radius: | 740 cm/24.27 ft | |
| Feed lines required: | 2 X 50 Ohm | |
| Max tower lift side: | 130 cm/4.26 ft | |
Longest element:
1100 cm/36.08 ft
Power handling:
10 kW
Wind area:
0.99 m²/10.76 sq ft
Wind load 130Km/h:
807 N
Wind survival*:
160 Kmh – 100 Mph
Tower Leg/Mast diameter: 50/60 mm – 2/2.36 inch (larger on request – specify on order form)
RF Choke**:
2 x 3kW included
Weight (excluding packaging):
50 Kg/110 lb
Materials used
Tubes and plates:
Aluminum alloy 6060T6
Hardware:
stainless steel
insulating clamps:
polypropylene UV resistant
Manual:
English
*Wind survival is the maximum wind speed to which the antenna can be subjected without incurring permanent deformation (calculated in the absence of ice)
**The Momobeam RF Choke (standard product offering, rated at 3 KW) is made from high quality Teflon dielectric, double shielded, low loss coaxial cable with properly selected ferrite material that is sleeved over the cable that together, create a high impedance path for RF, providing high isolation between the antenna and coaxial feedline.
An SO-239 female connector is included for convenient attachment to the customer feedline and its PL-259 Male connector.
The 5 KW and 10 KW rated RF chokes (optional purchase) are made from the same materials except the coaxial cable is 10 mm diameter.
The 10KW version uses a 7/16 DIN style connector.
Get the manual
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