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At BIG SIGNAL we present the latest generation in design and development of Cubical Quad antennas for the VHF / 144 MHz band.
Why choose a Quad antenna versus a traditional Yagi?
· Full wavelength antenna in 2 meters, reaching maximum performance and efficiency.
· More gain in less boom length than a Yagi of the same size.
· Very low noise. Being a closed antenna it will allow you to reduce the QRN and urban noise, improving the quality of reception of very weak signals in the band.
· Less influence to cross polarization than a Yagi. This translates into less QSB / Fading or signal loss when receiving signals in different polarization, ideal for communications via SAT or EME.
· Very high selectivity. Excellent suppression of side and rear lobes, further reducing unwanted noise in reject directions.
· Quick and easy installation: pre-assembled elements, assembly without tools.
BIG SIGNAL - The ultimate performance
Specifications:
· Band: 144 MHz.
· Active elements: 2.
· Gain: 7,80 dBi (Free space).
· F/B: 10,08 dB.
-3 dB Beamwidth: 74º
· SWR: 1,1:1 ~ 1,5:1.
· Impedance: 50 Ohm.
· Power rating: 5.000 W. PEP
· Boom length: 0,40 m / 1,31 ft
· Turning radius: 0,40 m / 1,31 ft
· Total height: 0,60 m / 1,96 ft
· Weight: 600 g / 1,322 lb
· Wind survival: > 200 Km/h. / 125 mph
· Wind load: 0,042 m2 | 32,97 N | @ 120 km/h.
Construction details:
· Boom to Mast: 100 x 100 x 6 mm.
· Boom size: 25 x 2 mm / 0,984 in
· Hardware: Stainless Steel, W4 grade.
· Spreaders Arms: 8 x 4 mm reinforced fiberglass tube with UV protection layer.
· Cable: BIG SIGNAL - Wire. Special copper cable with polyethylene (PE) sheath for excellent weather protection and mechanical resistance.
· Feeding: Direct to 50 Ohm.
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