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BIG SIGNAL 10BS-2
10-Element Directional Cubical Quad for High Performance on 144 MHz
The BIG SIGNAL 10BS-2 is a 10-element directional Cubical Quad specifically designed for operators seeking a high level of performance on the 144 MHz / 2 meter band.
Its architecture based on full-wave loop elements combines gain, directivity and an excellent signal-to-noise ratio, making it an especially attractive choice for terrestrial DX, weak-signal work and long-distance VHF communications.
Band: 144 MHz / 2 m
Type: Directional Cubical Quad
Elements: 10
Design: Full-wave loop elements
Applications: DX / weak signals / terrestrial communications
Assembly: Pre-assembled elements
Focus: High gain, directivity and signal-to-noise ratio
Type: Directional Cubical Quad
Elements: 10
Design: Full-wave loop elements
Applications: DX / weak signals / terrestrial communications
Assembly: Pre-assembled elements
Focus: High gain, directivity and signal-to-noise ratio
Why Choose the BIG SIGNAL 10BS-2?
• 10 full-wave elements
The 10BS-2 uses full-wave loop elements, an architecture designed to make efficient use of radiated energy and deliver outstanding performance on the 2 meter band.
The 10BS-2 uses full-wave loop elements, an architecture designed to make efficient use of radiated energy and deliver outstanding performance on the 2 meter band.
• High gain and directivity
Its 10-element configuration concentrates energy toward the desired direction, making the antenna especially well suited for long-distance communications and weak-signal work.
Its 10-element configuration concentrates energy toward the desired direction, making the antenna especially well suited for long-distance communications and weak-signal work.
• Excellent performance-to-boom-length ratio
The Cubical Quad design provides a high level of performance while maintaining an optimized structure, an especially attractive advantage compared with conventional directional arrays offering similar performance.
The Cubical Quad design provides a high level of performance while maintaining an optimized structure, an especially attractive advantage compared with conventional directional arrays offering similar performance.
• Clean reception and excellent signal-to-noise ratio
The closed-loop geometry of its elements can provide a favorable signal-to-noise ratio in the presence of certain types of electrical interference, an important advantage when working with signals close to the receiver noise floor.
The closed-loop geometry of its elements can provide a favorable signal-to-noise ratio in the presence of certain types of electrical interference, an important advantage when working with signals close to the receiver noise floor.
• High selectivity
Its directional pattern helps reduce signals and interference arriving from unwanted directions, allowing the antenna to focus both reception and transmission toward the desired area.
Its directional pattern helps reduce signals and interference arriving from unwanted directions, allowing the antenna to focus both reception and transmission toward the desired area.
• Greater stability with polarization variations
The geometry of the Cubical Quad elements can provide favorable performance when received signals experience polarization variations, helping maintain more stable reception under certain propagation conditions.
The geometry of the Cubical Quad elements can provide favorable performance when received signals experience polarization variations, helping maintain more stable reception under certain propagation conditions.
• Quick and easy assembly
The elements are supplied pre-assembled to simplify installation and reduce the time required to get the antenna ready for operation.
The elements are supplied pre-assembled to simplify installation and reduce the time required to get the antenna ready for operation.
An Alternative to the Traditional Yagi on 144 MHz
The fundamental difference lies in the elements. While a conventional Yagi typically uses open elements approximately half a wavelength long, the BIG SIGNAL 10BS-2 uses full-wave closed loops.
This architecture provides an especially attractive combination of gain, directivity, selectivity and signal-to-noise ratio, important characteristics when the goal is to extract maximum performance from a 144 MHz station.
Designed for Demanding VHF Operators
• 144 MHz DX communications.
• Weak-signal operation.
• Long-distance terrestrial communications.
• SSB, CW and digital modes.
• Stations requiring high directivity and an excellent signal-to-noise ratio.
• Installations seeking high performance from an antenna specifically optimized for the 2 meter band.
• Weak-signal operation.
• Long-distance terrestrial communications.
• SSB, CW and digital modes.
• Stations requiring high directivity and an excellent signal-to-noise ratio.
• Installations seeking high performance from an antenna specifically optimized for the 2 meter band.
When Signals Are Weak, the Antenna Makes the Difference.
BIG SIGNAL 10BS-2 – a 10-element Cubical Quad designed for operators seeking gain, directivity and clean reception on 144 MHz.
Technical Specifications
Band: 144 - 146 MHz
Elements: 10
Gain: 14.42 dBi (free space)
F/B Ratio: 22.68 dB
Beamwidth: 32°
SWR: 1.1:1 ~ 1.5:1
Impedance: 50 Ohms
Maximum Power: 5,000 W PEP
Boom Length: 15.91 ft (4.85 m)
Turning Radius: 7.96 ft (2.425 m)
Overall Height: 2.40 ft (0.73 m)
Weight: 11.02 lb (5 kg)
Wind Survival: > 93 mph (> 150 km/h)
Wind Load: 3.29 ft² (0.306 m²) | 53.91 lbf (239.81 N) | @ 74.6 mph (120 km/h)
Elements: 10
Gain: 14.42 dBi (free space)
F/B Ratio: 22.68 dB
Beamwidth: 32°
SWR: 1.1:1 ~ 1.5:1
Impedance: 50 Ohms
Maximum Power: 5,000 W PEP
Boom Length: 15.91 ft (4.85 m)
Turning Radius: 7.96 ft (2.425 m)
Overall Height: 2.40 ft (0.73 m)
Weight: 11.02 lb (5 kg)
Wind Survival: > 93 mph (> 150 km/h)
Wind Load: 3.29 ft² (0.306 m²) | 53.91 lbf (239.81 N) | @ 74.6 mph (120 km/h)
14.42 dBi with 10 Long-Spaced Elements
The combination of 14.42 dBi gain, a 22.68 dB front-to-back ratio and a 32° beamwidth provides the directivity required for weak-signal work and long-distance communications on 144 MHz.
Construction & Materials
• Boom-to-Mast Plate: 5.91 x 3.94 x 0.24 in (150 x 100 x 6 mm).
• Boom: 1.38 x 0.079 in (35 x 2 mm) square profile.
• Hardware & Fasteners: W4 stainless steel.
• Fiberglass System: 0.31 x 0.16 in (8 x 4 mm) reinforced fiberglass tubing with UV-protective coating.
• Cable: BIG SIGNAL Wire by Messi & Paolini, special copper wire with a polyethylene (PE) jacket designed to provide excellent weather protection and high mechanical strength.
• Feed System: N-type connector or direct 50-ohm feed.
• Boom: 1.38 x 0.079 in (35 x 2 mm) square profile.
• Hardware & Fasteners: W4 stainless steel.
• Fiberglass System: 0.31 x 0.16 in (8 x 4 mm) reinforced fiberglass tubing with UV-protective coating.
• Cable: BIG SIGNAL Wire by Messi & Paolini, special copper wire with a polyethylene (PE) jacket designed to provide excellent weather protection and high mechanical strength.
• Feed System: N-type connector or direct 50-ohm feed.
High Gain and Directivity for the 2 Meter Band.
BIG SIGNAL 10BS-2 – 10 long-spaced elements, 14.42 dBi of gain and up to 5,000 W PEP for stations seeking a high level of performance on 144 MHz.
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