MomoBeam TETRA 15 Directive antenna for 10/15/20/40 meter bands

MomoBeam TETRA 15 Directive antenna for 10/15/20/40 meter bands

Ref: TETRA15

Usually delivered in 2/4 weeks

€3,980.00

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RF CHOKE : 2 X 3kW RF choke SO239 PLUG INCLUSO

2 X 3kW RF choke SO239 PLUG INCLUSO
2 X 5 KW Connettore SO239
2 X 10 KW RF choke 7-16 DIN PLUG

U-BOLT OPZIONALI : 4 X U-bolt 50/60 mm (2-2.3 in) INCLUSO

4 X U-bolt 50/60 mm (2-2.3 in) INCLUSO
4 X U-bolt 60/80 mm
4 U-bolt 80/100 mm

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TETRA 15 10-15-20-40 DUALFEED is a multiband yagi with a super compact design.

In 40 meters it has a Reflector / Driver configuration, the size of the elements has been compacted thanks to loads placed at the ends of the elements. This solution, which was originally adopted by W6NL, allows you to maintain fullsize performance while limiting its size.
On 20 meters it uses the reflector, driver and director configuration, while on 15 and 10 meters there are 4 active elements in the reflector, driver and two directors configuration
The antenna requires 2 coaxial cables: the first feeds the 40 meter band and the second feeds the 10/15/20 meter bands.
The dual power supply allows contest stations to use this antenna as a multi/monoband: while one RTX transmits on 10/15/20 meters, a second RTX can operate simultaneously on 40 meters.

Suitable for trolley trusses with 70cm sides
Requires a medium/heavy load rotor

RF choke: 3kW included

Availability: Usually delivered within 2/3 weeks

TETRA15 10/15/20/40DF	10 m	15 m	20 m	40 m
Gain dBi: (20 meters above the ground)	15.6	13.8	12.5	11.0
Gain dBd free space:	7.9	6.0	5.2	4.2
F/B:	25	25	25	20
Active elements:	6	4	3	2
KHz bandwidth VSWR ≤ 1.5:1	800	450	350	200
Boom Length:	850 cm
Rotation radius:	860 cm
Required power lines:	2x 50 Ohms
Max trolley truss side:	70cm

Longest element: 1560 cm

Applicable power: 10 kW

Windward surface: 1.87 m²

Wind load 130Km/h: 1525 N

Wind survival*: 130 km/h

Mast connection: 40/60 mm (higher on request)

Balun: 3 KW included, 5/10 KW to be purchased separately)

Weight (excluding packaging): 90 kg

USED MATERIALS

Tubes and plates: aluminum alloy, 6060T6

Hardware: stainless steel

Insulator shells: UV resistant polypropylene

Manuals available: Italian – English

* Wind survival is the maximum wind speed to which the antenna can be subjected without incurring permanent deformations (value calculated in the absence of ice)

Reference TETRA15

Data sheet