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Availability: OK
Delivery time: 1-2 bussines weeks

· Availability: OK
· Estimated delivery time: 1-2 bussiness weeks

123,97 € (150,00 € TAX Inc.)
111,57 € (135,00€ TAX Inc.)
  • Description
  • Specifications
  • Reviews (1)
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Discover the revolutionary BIG SIGNAL CQ-270 antenna, the power of two single-band antennas in a single high-performance unit!

Highlighted features of the BIG SIGNAL CQ-270 antenna:

· Double Single-Band in One Antenna: This innovative design combines two real single-band antennas for 144 and 432 MHz into one, ensuring maximum performance on each frequency. You no longer have to compromise signal quality; you'll have the best of both bands!

· Polarization Versatility: Ideal for terrestrial communications in both vertical and horizontal polarization, this antenna is also a versatile choice for repeater installations, beacons, and more.

· Performance in Satellite Communications: Its unique radiation pattern with different high and low lobes in the elevation plane makes it an excellent choice for initiating satellite communications. Additionally, it offers full-duplex operation thanks to its independent feeding for each band.

Advantages of choosing the BIG SIGNAL CQ-270 antenna over a traditional vertical:

- Full-Wavelength Single Bands: With real single bands for 2 meters and 70 centimeters, you'll get maximum performance without compromises.
- Urban Noise Reduction: The closed-loop antenna minimizes QRN and urban noise, improving the reception quality of weak signals.
- Guaranteed Performance: Experience superior performance compared to renowned omnidirectional antennas.
- Full-Duplex Operation: Independent feeding for each band, making it ideal for satellite communications (optionally, you can add a duplexer for a single downlink).
- Signal Stability: Less polarization cross-over influence than a traditional vertical, resulting in less QSB, fading, or signal loss when receiving signals with different polarizations.
- Robust and Maintenance-Free: Its solid construction ensures extreme durability and zero maintenance needs.
- Quick and Easy Installation: Pre-assembled elements allow you to have it ready in less than 5 minutes, with no need for complex adjustments after installation.

BIG SIGNAL - Excellence in V-UHF Communications


· Band: 144 ~ 432 MHz. (+PMR 446 MHz) 
· Gain: 7.11 dBi ~ 9.32 dBi. @ 6 m.
· Polarization: Vertical or Horizontal. *To choose in the installation.
· Radiation pattern: Near Omnidirectional.
· SWR: 1.1: 1 ~ 1.5:1.
· Impedance: 50 Ohm.
· Maximum power: 1,500 W. PEP.
· Total height: 0.70 m. / 2,29 ft. 
· Total width of the boom: 0.95 m. / 3,11 ft.
· Weight: < 1 Kg.
· Wind load: 0.133 m2 | 104.01 N | @ 120 km / h.
· Wind resistance: > 200 Km / h.


· Attachment to mast: Abarcon up to 50 mm.
· Boom: 25 x 2 mm square.
· Screws and hardware: W4 Stainless Steel.
· Fiber system: 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.
· Feed: I
ndependent feed for each band (145 and 432 MHz) N type connector. (Optionally you can insert a duplexer for a single feed).


  1. Luis (EB1IMW)03 Mar, 2023 - 15:08

    Excelente antena para quien no pueda tener una direccional, excelente recepción para satélites nada que ver con mi vertical, fácil de instalar y de buena calidad. Dos monobandas en el mismo boom, un avierto

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