|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|
|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|
0.38 m²/4 sq ft
Wind load 130Km/h:
160 Kmh – 100 Mph
Tower Leg/Mast diameter: 50/60 mm – 2/2.36 inch (larger on request – specify on order form)
3 KW included
Weight (excluding packaging):
15 Kg/33 lb
Tubes and plates:
Aluminum alloy 6060T6
stainless and galvanized steel
polypropylene UV resistant
*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.