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487,60 € (590,00 € TAX Inc.)
446,28 € (540,00€ TAX Inc.)
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Get ready to take your 11 meters (27 MHz) band communications to the highest level with the BIG SIGNAL 4BS-11 4-element cubical antenna!

Master the 11 meters band with BIG SIGNAL:

At BIG SIGNAL, we have perfected the latest generation of cubical antennas designed specifically for the 11 meters band.

Be at the top of the most powerful stations on the band:

If you aspire to be one of the most powerful operators in the 11 meters band, then the BIG SIGNAL 4BS-11 cubical antenna is your answer.

Reasons to choose the BIG SIGNAL 4BS-11 over a traditional Yagi:

· Full-Wavelength Elements: Our antenna makes the most of every centimeter of the wavelength, achieving unmatched performance and efficiency.
· Superior Gain in a Compact Space: Despite its compact size, our antenna outperforms traditional Yagis of similar dimensions in gain.
· Noise Elimination, Enhanced Reception: Thanks to its closed design, this antenna minimizes QRN and urban noise, allowing you to receive weak DX signals with stunning clarity.
· Low Radiation Angle: Even when installed at a low height, this antenna maintains a low radiation angle, resulting in stronger signals and extended DX communication reach.
· DX Signal Stability: Less influence from polarization changes translates to less QSB and increased stability when receiving DX stations.
· Suppression of Side and Rear Lobes: Minimize unwanted noise in unwanted directions, providing exceptional signal quality.
· Ultra-Robust Construction: This antenna is designed to withstand the toughest conditions and last a lifetime.

A New Dimension of 11 Meters DX:

Experience a completely new dimension when operating with a cubical antenna in the 11 meters band and take your DX communications to an unprecedented level.

BIG SIGNAL - Where Performance Reaches Its Maximum Expression.
Experience 11 meters DX like never before and stand out on the band with the BIG SIGNAL 4BS-11.


· Band: 27 MHz.
· 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.


  1. Berto (34DA101 )27 Feb, 2024 - 17:27

    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.

  2. Juan Susach Campalans (30LRCB690)14 Jul, 2023 - 12:42

    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.

  3. Guilherme ()11 Jun, 2023 - 10:01

    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

  4. Guilherme (France CB station )19 May, 2023 - 11:35

    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!

  5. gary veitch (3847)16 Oct, 2021 - 03:19

    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

  6. Gary (108AT101)07 Ago, 2021 - 10:43

    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

  7. 163lr101 ian (163lr101)14 Jun, 2020 - 22:06

    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

  8. JOSE ANTONIO (30VDX001)18 Nov, 2019 - 09:22

    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 .

  9. Ian (26IR244)22 Ago, 2019 - 01:55

    The Quad is working amazing and sometimes i am the only one hearing stations on the band.

  10. Toni (13EK111)10 May, 2018 - 12:06

    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.

  11. Nino (34AT040)10 May, 2018 - 11:50

    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.

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