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| DUO4 1217 | 12 m band | 17 m band |
|---|---|---|
| Gain dBi: (20 meters above the ground) | 11.5 | 11.3 |
| Gain dBd free space: | 3.95 | 3.73 |
| F/B: | 13 | 10 |
| Active elements: | 2 | 2 |
| Bandwidth kHz S.W.R. ≤ 1.5:1 | 100 | 100 |
| Boom Length: | 300 cm/9.85 ft | |
| Turning radius: | 460 cm/15 ft | |
| Feed lines required: | 1 X 50 Ohm | |
| Max tower lift side: | 180 cm/5.90 ft | |
Longest element:
840 cm/27.55
Power handling:
10 kW
Wind area:
0.38 m²/4 sq ft
Wind load 130Km/h:
307 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**:
3 KW included
Weight (excluding packaging):
15 Kg/33 lb
Materials used
Tubes and plates:
Aluminum alloy 6061T6
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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