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BIG SIGNAL is proud to introduce the latest generation in design and development of cubical antennas for the VHF band / 144 MHz. Our BIG SIGNAL 12BS-2 antenna is the largest and highest-gain model available in VHF, delivering exceptional performance for VHF DXing.
Advantages of choosing a cubical quad antenna in VHF over a traditional Yagi:
- Full-wavelength elements, ensuring maximum performance and efficiency.
- More gain in less boom length compared to a Yagi of the same size.
- Significant noise reduction. Being a closed antenna allows you to reduce QRN and urban noise, significantly improving the reception quality of extremely weak signals in the band.
- Less affected by polarization cross or change compared to a traditional Yagi. This translates to less QSB, fading, or signal loss when receiving signals with different polarizations, making it ideal for satellite or point-to-point communications.
- High selectivity with excellent sidelobe and backlobe suppression, further reducing unwanted noise in the rejection directions.
- Easy and fast installation with preassembled elements and tool-free assembly.
BIG SIGNAL - Where performance reaches its maximum potential in VHF.
Specifications:
· Band: 144 MHz.
· Active elements: 12 (long boom).
· Gain: 15,11 dBi (free space).
· F/B: 23,44 dB.
· Beamwidth: 30º
· SWR: 1,1:1 ~ 1,5:1.
· Impedance: 50 Ohm.
· Power rating: 5.000 W. PEP.
· Boom length: 7,1 m / 23,29 ft
· Turning radius: 3,567 m / 11,702 ft
· Total height: 0,73 m / 1,80 ft
· Weight: 7 Kg / 15,43 lb
· Wind survival: > 200 Km/h. / 125 mph
· Wind load: 0,443 m2 | 347,9 N | @ 120 km/h.
Construction details:
· Boom to Mast: 200 x 150 x 8 mm
· Boom size: 35 x 2 mm / 1,37 in
· Hardware: Stainless Steel, W4 grade.
· Spreaders Arms: 8 x 4 mm reinforced fiber cloth and protective layer for UV.
· Cable: BIG SIGNAL - Wire. Special copper cable with polyethylene (PE) sheath for excellent weather protection and mechanical resistance.
· Feeding: Direct to 50 Ohm coax.
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