Messi and Paoloni HyperFlex 10 Coax Cable

Messi and Paoloni HyperFlex 10 Coax Cable

The Messi and Paoloni HyperFlex 10 Coax Cable series offers unparalleled flexibility and superior performance for amateur radio operators and anyone requiring high-quality 10.3mm (.405") coaxial cable. Designed to excel in demanding environments, these cables provide excellent performance with limited signal loss, even at higher frequencies and over long distances. They are the ideal choice for applications involving tight bends, rotor antennas, Wi-Fi signal extension, routers (2G-5G), hotspots, LoRaWAN protocol, and IoT Gateways.

Key Features

• Extreme Flexibility: The most flexible 10.3mm cable, perfect for tight bending radii and rotor antennas.
• Optimal Attenuation: Delivers the best attenuation figures for a stranded core 10.3mm coaxial cable.
• High Velocity Ratio: A remarkable 87% velocity ratio minimizes signal propagation delay and loss.
• Robust Shielding: A dual-layer shielding system ensures exceptional noise reduction.
  • 100% Screening Copper Foil: The first screen, made of copper with an applied PE-layer, prevents cracking from short radius bends.
  • Reactive Braid: A super-thick braid, made with advanced 24-spool machines (instead of traditional 16-spool), provides 50% more crossovers. This design enhances Screening Attenuation (SA) and allows the braid to react like a spring to twisting and bending. (Sahara FT8 features 216 pure copper wires, standard HyperFlex 10 uses 192 copper clad aluminum wires).
  • Screening Efficiency (SA): Both achieve >105 dB from 100-2000 MHz, earning them a Screening Class A++.
• High Pressure Physical Injection Foamed Polyethylene Dielectric: This triple-layer dielectric (overall Ø 7.3mm ± 0.05) ensures low capacitance and consistent electrical properties.
• Stranded Copper Inner Conductor: 19x0.59mm stranded copper wires (overall Ø 2.9mm ± 0.15) contribute significantly to the cable's flexibility.
• 50 Ohm Impedance: Standard for amateur radio and communication systems.
• Minimum Bending Radius: Up to 15 bends at 80mm (3.15 in); single bend (choke) at 40mm (1.57 in).
• Jacket: UV-resistant black PVC (overall Ø 10.3mm ± 0.15). (Sahara FT8 features a UV-resistant white PVC jacket for heat reduction and discretion).
• Maximum Peak Power:
  • HyperFlex 10: 10,000 Watts
  • Sahara FT8: 13,000 Watts
• Outer Conductor Resistance:
  • HyperFlex 10: 12 Ohm/Km
  • Sahara FT8: 6 Ohm/Km
• Net Weight (100m):
  • HyperFlex 10: 11.6 Kg (7.8 lb)
  • Sahara FT8: 13.5 Kg (9.1 lb)
• Temperature Range: -40°C to +60°C (-40°F to +140°F).
• Structural Return Loss: >30 dB (0.3-600 MHz), >25 dB (600-1200 MHz), >20 dB (1200-2000 MHz).

HyperFlex 10: Standard Black Jacket

The standard HyperFlex 10 features a UV-resistant black PVC jacket (overall Ø 10.3mm ± 0.15). While extremely flexible, it's important to note that PVC sheaths are NOT suitable for direct burial. This version utilizes a reactive braid of 192 wires of copper clad aluminum. With a maximum peak power of 10,000 Watts, it is a highly capable cable for a wide array of general-purpose and high-power amateur radio applications. Its operating temperature range is -40°C to +60°C (-40°F to +140°F).

HyperFlex 10 Sahara FT8: Optimized for High Power & Hot Climates

The HyperFlex 10 Sahara FT8 model is specifically engineered for hot environments and high amplification, making it ideal for continuous carrier modes like FT8 and extended SSB contests. Its distinctive feature is a UV-resistant white PVC jacket (overall Ø 10.3mm ± 0.15). The white color is a concrete benefit, as it significantly reduces overheating caused by direct sun exposure compared to black cables. This helps to optimize overall system performance, as cable attenuation can degrade considerably with rising ambient temperatures. Additionally, the white jacket can offer a more discreet appearance, often blending better with surroundings and reducing concerns from neighbors.

Crucially, the Sahara FT8 version features an enhanced reactive braid with 216 pure copper wires (instead of 192 copper clad aluminum wires found in the standard HyperFlex 10). This modification increases the cable's weight slightly but halves the outer conductor electrical resistance to 6 Ohm/Km. Laboratory tests demonstrate a considerable drop and stabilization of operating temperature during hours of 1 kW continuous carrier FT8 transmission, a waveform that particularly stresses radio devices. This makes the Sahara FT8 cable an exceptional choice for very high amplifications extended over time in SSB (contests) and power-intensive digital modes. It boasts an even higher maximum peak power of 13,000 Watts.

Click here for a comparison between LMR, ABR, and M&P coax.

Click here for HyperFlex 10 datasheet.

Click here for HyperFlex 10 Sahara FT8 datasheet.

HyperFlex 10 vs HyperFlex 10 Sahara FT8 Comparison Chart