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BIG SIGNAL CQ-2
Real 2-meter performance. Compact, efficient, and ready for anything.
Discover the CQ series by BIG SIGNAL—high-efficiency cubical antennas designed for maximum performance in discreet or space-limited installations.
The BIG SIGNAL CQ-2 is a single-element monoband antenna optimized for 145 MHz (2 meters). Its near-omnidirectional pattern allows for operation in either vertical or horizontal polarization, making it a highly versatile choice for any VHF application.
Perfect for terrestrial contacts, satellite reception, repeaters, beacons, portable operations, balconies, or indoor setups, thanks to its compact size and high-efficiency electrical design.
Why choose the CQ-2 over a traditional vertical antenna?
• Full-wave operation on 2 meters
No coils, traps, or tuning devices—just pure, uncompromised efficiency across the entire band.
• Low-noise reception
Its closed-loop design significantly reduces QRN and urban interference, helping you pick up weak signals other antennas miss.
• Ultra-compact and low-profile
At just 70 cm (27 inches) total length, it blends into any environment and is built to withstand high winds. Ideal for limited-space installations or HOA-restricted areas.
• Satellite-ready
Thanks to its high-angle radiation pattern and minimal polarization shift, it's excellent for satellite communications—even at low passes.
• Less fading, more stability
The quad structure offers superior resistance to polarization mismatch, resulting in less QSB and stronger, more consistent signals in SSB, FT8, FM DX, and more.
• Rugged, maintenance-free construction
Built with durable materials to handle harsh environments with zero upkeep required.
• Quick & easy setup
Fully assembled in under 5 minutes, with no tools or fine-tuning needed. Just mount and go.
BIG SIGNAL CQ-2
The ideal antenna for real performance in small spaces.
Compact. Efficient. Quiet.
BIG SIGNAL – Power where others can't reach.
Specifications:
· Band: 144 ~ 146 MHz.
· Gain: 7.11 dBi. @ 5 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: 1,000 W. PEP.
· Total height: 0,70 m. / 2,29 ft
· Total width: 0,50 m. / 1,64 ft
· Weight: < 1 Kg.
· Wind load: 0.093 m2 | 72.612 N | @ 120 km / h.
· Wind resistance: > 200 Km / h.
Manufacturing:
· Attachment to mast: 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: N connector.
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.
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BIG SIGNAL CQ-2 ? My First Ham Radio Antenna
As a newly licensed ham operator, I was eager to get on the air, and the BIG SIGNAL CQ-2 became my first antenna choice. I mounted it just 20 cm above my roofline in Dubai, and I must say, it has exceeded my expectations.
With current tropospheric ducting conditions in the Middle East, I was thrilled to hear mobile stations in Muscat, Oman, a staggering 350 km away with a signal report of 5-9! The 2-meter QSOs are impressively clear, and my signal reports confirm that I am being heard just as well.
One of the most surprising aspects of this antenna is the amazing noise floor. At first, I thought something was wrong because I was getting zero noise, a rare experience in urban environments. However, incoming signals were loud and crystal clear, proving that the antenna is doing its job efficiently.
For a compact and lightweight omnidirectional antenna, the CQ-2 is proving to be a fantastic choice for my setup. Whether you're a beginner like me or an experienced ham looking for a great portable or base station option, this antenna is definitely worth considering. You can also install it as a directional antenna.
Pros:
- Excellent RX/TX performance even at a low mounting height
- Extremely low noise floor
- Clear 2m QSOs over long distances
- Lightweight, very small and easy to install
The BIG SIGNAL 4BS-2 is still waiting to be built as I'm waiting for the rotor to be delivered. Looking forward to working that one as a directional antenna.
So far, I'm more than satisfied with the BIG SIGNAL CQ-2. I look forward to testing it in different conditions and seeing what else it can do!