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BIG SIGNAL 4BS-11
The ultimate cubical quad to dominate 11-meter DX (27 MHz)
Want to play in the big leagues on 11 meters?
The BIG SIGNAL 4BS-11 isn’t just another antenna—it's the go-to choice for the most powerful and competitive operators on the band.
If you're serious about real reach, low noise, and unbeatable DX performance, this is the antenna that makes the difference.
Why the BIG SIGNAL 4BS-11 outperforms traditional Yagis:
-
Full-wavelength elements = maximum efficiency
Unlike half-wave Yagis, the 4BS-11 uses full-wavelength elements to deliver higher gain, stronger signals, and lower loss. -
Compact design, big performance
With just 4 elements, it outperforms many larger Yagis—giving you more DX power without needing massive space. -
Cleaner reception with reduced urban noise
The closed-loop design drastically lowers QRN and local interference, letting you pull in weak DX signals others can’t hear. -
Low takeoff angle, even at modest heights
Perfect for DXing without a tower. The 4BS-11 sends your signal farther, even from standard home installations. -
Stable DX performance with less QSB
Thanks to reduced polarization sensitivity, it delivers more consistent signal reception, even when conditions fluctuate. -
High front-to-back and side rejection
Focus your signal and cut out unwanted noise—exactly what you need to work distant stations clearly. -
Built for a lifetime
Heavy-duty construction for extreme durability. Install it once—enjoy it for years.
Trusted by the top 11-meter operators worldwide
The BIG SIGNAL 4BS-11 isn’t theory—it’s the antenna used by hundreds of high-level stations across the globe.
- Operators who install it instantly notice the difference.
- Don’t just take our word for it—read their reviews and see why so many call it the best DX antenna on 11 meters.
BIG SIGNAL 4BS-11
Level up. Stand out. Work the DX others can’t.
BIG SIGNAL – Where performance reaches its peak.
Own the 4BS-11 and experience 27 MHz like never before.
Specifications:
· Band: 27 MHz. *(27.5 or 27.025) - Choose from add-ons.
· Active elements: 4.
· Gain: 10,40 dBi (Free space).
· F/B: 22,40 dB.
· Polarization: Horizontal.
· SWR: 1,1:1 ~ 1,5:1.
· Power rating: 5.000 W. PEP.
· Boom length: 5,55 m. / 18,20 ft.
· Turning radius: 3,36 m. / 11,02 ft.
· Total height: 2,75 m. / 9,02 ft.
· Weight: 12 Kg. / 26,45 lb.
· Wind survival: > 160 Km/h. / 100 mph.
· Wind load: 0,702 m2 / 7,55 ft sq | 550,91 N | @120 km/h. / 75 mph
Construction details:
· Boom to Mast: 150 x 150 x 8 mm.
· Boom size: 50 x 2 mm / 2,00 in.
· Spiders: Angled design of 25 x 3 mm and stabilizing element to the boom of 4 mm.
· Hardware: Stainless Steel, W4 grade.
· Spreaders Arms: 14 x 7 mm reinforced fiber cloth and protective layer for the sun.
· Cable: BIG SIGNAL - Wire. Special copper cable with polyethylene (PE) sheath for excellent weather protection and mechanical resistance.
· Feeding: Direct to 50 Ohm coax.
Reviews
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The purchase of the products is always made on request. We manufacture all products, so manufacturing times can be added. That is why the final price of the purchase, as the final price of the shipping costs will be confirmed in an email sent afterwards.
The form of payment will be made once the email is received, so at all times you can cancel the order informing us of the process.
A very serious company with high-quality equipment and impeccable commercial and technical support. Nowadays, it's rare to find such competent professionals, but here, you can trust them with your eyes closed! A big thank you for the valuable help in setting up my installation. I won?t hesitate to return to BIG SIGNAL for future antenna purchases. If you're looking for quality, efficiency, and reliability, there's only one place: BIG SIGNAL!
I've had that 4BS-11 for over a year now, and it never ceases to amaze me ? it's like a missile of an antenna.
Ya tengo la antena instalada y a pleno funcionamiento. Ha sido una instalación compleja, mastil, rotor, arriestrarla, el equipo de antenistas "Vesatel Servicios Integrales" y el operador de la Grua "Gruas Moreno", 10 puntos, sin ellos no hubiera sido posible, la antena es muy grande y su montaje es complejo.
Los resultados son ESPECTACULARES, DX con facilidad con poca propagación, cuando hago el cambio a la vertical, obtengo 4/5 puntos de diferencia de señal. Es un "Cañon", estoy feliz por la inversión , la instalación y el performance que esta demostrando la Big Signal 4DS-11. DX con dos estaciones chilenas 17 horas UCT mas de 35 minutos de QSO, con señal sostenida en las dos direcciones. Comentario final: Big Signal 4DS-11 es una antena de alto rendimiento. Gracias Big Signal por fabricar algo tan espectacular.
Hola,
Gracias pore mi comentario y un aplauso para Big Signal para su 4BG-11 hermosa antena y muy bueno funcionamiento merece bien sus 5 estrellas.
Merci pour mon commentaire et un applaudissement pour Big Signal pour sa 4BG-11 belle antenne et un tres bon fonctionnement merite bien un 5 etoiles
Thank you for my comment and an applause for Big Signal for its 4BG-11 beautiful antenna and very good operation well deserves a 5 star
I already have the antenna mounted on the tower and began to test it with almost no propagation. I have made QSO with New Caledonia, New Zealand, Australia, Thailand, Qatar, Brazil with signals from 4 to 9+ and radio 4-5 with only 50 Watts!!!
The antenna keeps all the stated promises, I keep hoping for better propagation.
Well done BIG SIGNAL!
this antenna kicks butt , i hear more low down stations than my gizmo (wast of money ) i have jumped 2 s points with this quad , Lloyed my mate said i have 2 s points over the gizmotchy at around 40ks , 20s over into OLD when not much skip . 1 down fall is the cross pieces should be welded but very sturdy LOVE IT , 43 da040 gary
After many months now of Purchasing the 4 Element Big Signal 4BS-11 Cubical Quad I have now finally managed to get the chance to install this great antenna.
At times I am the only one local in Glasgow, Scotland hearing and working stations on the 11m band. Thanks Big Signal, Gary 108AT101
Hi big signal I got the 4bs 11 up on the mast today working very well 4s points up on 2 element delta loop fantastic reports rx and tx good service and strong construction well done Jose and team at big signal 163lr101 ian
De tener una verdadera bomba para el DX que es la 2 elementos y pensar que mejor no podía ser, he pasado a alucinar pero esta vez con la 4 elementos. Nunca pensé que esto pudiera suceder. En Valencia soy el primero en escuchar la propagación . Señales de +20,+30 en toda Europa con 50W. No se que más decir, excepto que estoy contentísimo . Gracias BIG-SIGNAL .
The Quad is working amazing and sometimes i am the only one hearing stations on the band.
Hallo Big Signals,
I will give you now after near 9 month a short answer and back up about the 4 Element Cubical Quad 4BS-11. Before I changed my system I have a 4 ele Yagi special build for my opinion and dates....it works very nice....but now I must say the Quad works amazing super top.... Big difference in working wise to a yagi....and I must learn a little time to use the Quad perfect. A lot more Gain and more RX makes this antenna to a super gun.
Transmito para Europa con tan solo picos de 3 W. y pongo señales de 8 y cuando le digo a los corresponsales que estoy tan solo con 3 W. hay una exclamación ohhhh good. Al día siguiente de montar la antena trabajé la estación 271DA/0 en el Pacifico Central y mi colega que esta a 600 metros de mi casa no la escuchaba y yo la escuchaba 5/3 y eso que el tiene 11 metros de mástil y una Yagi de 4 elementos. Esta antena es una aspiradora de señales y un misil en transmisión.