For US market: 
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| TRI12 10/15/20 SF | 10 m band | 15 m band | 20 m band |
|---|---|---|---|
| Gain dBi: (20 meters above the ground) | 13.6 | 14.4 | 13.3 |
| Gain dBd free space: | 5.8 | 6.8 | 6.0 |
| F/B: | 20 | 15 | 20 |
| Active elements: | 4 | 4 | 4 |
| Bandwidth kHz S.W.R. ≤ 1.5:1 | 800 | 450 | 350 |
| Boom Length: | 1100 cm/36 ft | ||
| Turning radius: | 760 cm/25 ft | ||
| Feed lines required: | 3 X 50 Ohm | ||
| Max tower lift side: | 100 cm/3.28 ft | ||
Longest element:
1100 cm/36 ft
Power handling:
10 kW
Wind area:
1.24 m²/13.5 sq ft
Wind load 130Km/h:
1012 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**:
3X 3 KW included
Weight (excluding packaging):
57 Kg/125 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.
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