Messi and Paoloni Ultraflex 10C Sahara (Competition) – 50 Ω Coaxial Cable The Messi and Paoloni Ultraflex 10C Sahara (Competition) is a premium 50 Ω coaxial cable designed for high-performance amateur radio operation in hot and high-sun environments. Combining competition- grade electrical performance with a heat-reflective outer jacket, this cable is ideal for demanding base station and contest installations. With a large-diameter construction, Ultraflex 10C Sahara offers very low signal loss while remaining more flexible than traditional 400-class coaxial cables. The copper wire inner conductor delivers stable, reliable RF performance across HF, VHF and UHF bands. The white PVC Sahara outer jacket is specifically developed to reflect sunlight and reduce heat absorption, making this cable particularly well suited to outdoor installations exposed to prolonged direct sunlight or high ambient temperatures. Ultraflex 10C Sahara is designed for contest stations, base stations and serious amateur radio installations where maximum performance, flexibility and thermal stability are essential. Available either cut to length per metre or supplied as a 100 metre drum, allowing you to choose the option that best suits your installation requirements. Key Features Competition-grade 50 Ω coaxial cable with very low signal loss White PVC Sahara jacket designed for hot and high-sun environments Reduced heat absorption compared to standard black jackets Copper wire inner core for dependable RF performance Excellent flexibility for a large-diameter cable Available per metre or as a 100 metre drum Ideal For HF, VHF and UHF contest and base station installations Outdoor installations exposed to direct sunlight High-performance amateur radio stations in hot climates When competition-level performance is required in challenging thermal conditions, the Messi and Paoloni Ultraflex 10C Sahara delivers a professional-grade coaxial solution you can rely on. Moonraker – the Ham Radio Superstore. Messi and Paoloni Other RF Coax Cable Solutions Explore more Messi and Paoloni coax options below. Each cable is designed for a specific type of installation, from lightweight portable setups to low-loss base station feedlines and direct-burial outdoor runs. Airborne 5 – A lightweight 5 mm coax designed for outdoor use where flexibility and durability are essential. Hyperflex 5 – A compact, highly flexible 5.4 mm PVC jacket coax, ideal for tight routing and portable or mobile use. Ultraflex 7 – A popular 7.3 mm general-purpose low-loss coax with a flexible PVC jacket for fixed, portable and mobile stations. POTA-FLEX 7 – A rugged outdoor and portable cable in high-visibility yellow, built for repeated deployment and harsh handling. Extraflex Bury 7 – A 7.3 mm waterproof coax designed specifically for direct burial and underground runs. Airborne 10 – A heavy-duty outdoor coax for permanent installations, offering excellent durability and weather resistance. Broad Pro 50C LSZH – A safety-focused coax with an LSZH jacket for indoor and public installations. Ultraflex 10C (Competition) – A competition-grade flexible low-loss coax for high-performance base and contest stations. Hyperflex 10 – A large-diameter flexible coax offering low-loss performance with easier routing. Extraflex Bury 10 – A heavy-duty direct-burial coax for permanent underground outdoor installations. Hyperflex 13 – A very low-loss feedline for demanding base stations and long cable runs. Comparison (tap on the dimensions to the right to view further details) Airborne 5 5.0 mm • 9.4 dB Diameter5.0 mm Loss9.4 dB per 100 m at 100 MHz Outer JacketShielded Polyethylene Outer BraidReactive Braid Inner CoreSolid Copper 1.13 mm Hyperflex 5 5.4 mm • 8.0 dB Diameter5.4 mm Loss8.0 dB per 100 m at 100 MHz Outer JacketPVC Outer BraidReactive Braid Inner CoreCopper Wires 1.4 mm Ultraflex 7 7.3 mm • 5.8 dB Diameter7.3 mm Loss5.8 dB per 100 m at 100 MHz Outer JacketPVC Outer BraidReactive Braid Inner CoreCopper Wires 1.9 mm POTA-FLEX 7 7.65 mm • 5.8 dB Diameter7.65 mm Loss5.8 dB per 100 m at 100 MHz Outer JacketShielded Polyethylene (Yellow) Outer BraidTwin Braid Inner CoreCopper Wires 1.9 mm Extraflex Bury 7 7.3 mm • 5.8 dB Diameter7.3 mm Loss5.8 dB per 100 m at 100 MHz Outer JacketShielded Polyethylene Outer BraidReactive Braid Inner CoreCopper Wires 1.9 mm Airborne 10 10.3 mm • 3.5 dB Diameter10.3 mm Loss3.5 dB per 100 m at 100 MHz Outer JacketShielded Polyethylene Outer BraidReactive Braid Inner CoreSolid Copper 2.78 mm Broad Pro 50C LSZH 10.3 mm • 3.6 dB Diameter10.3 mm Loss3.6 dB per 100 m at 100 MHz Outer JacketLSZH Outer BraidReactive Braid Inner CoreSolid Copper 2.76 mm Ultraflex 10C 10.3 mm • 3.9 dB Diameter10.3 mm Loss3.9 dB per 100 m at 100 MHz Outer JacketPVC Outer BraidReactive Braid Inner CoreCopper Wires 2.9 mm Hyperflex 10 10.3 mm • 3.9 dB Diameter10.3 mm Loss3.9 dB per 100 m at 100 MHz Outer JacketPVC Outer BraidReactive Braid Inner CoreCopper Wires 2.9 mm Extraflex Bury 10 10.3 mm • 3.9 dB Diameter10.3 mm Loss3.9 dB per 100 m at 100 MHz Outer JacketShielded Polyethylene Outer BraidReactive Braid Inner CoreCopper Wires 2.9 mm Hyperflex 13 12.7 mm • 2.8 dB Diameter12.7 mm Loss2.8 dB per 100 m at 100 MHz Outer JacketPVC Outer BraidReactive Braid Inner CoreCopper Wires 3.8 mm Cable Diameter (mm) Loss (dB per 100 m at 100 MHz) Outer Jacket Outer Braid Inner Core Airborne 5 5.0 9.4 Shielded Polyethylene Reactive Braid Solid Copper 1.13 mm Hyperflex 5 5.4 8.0 PVC Reactive Braid Copper Wires 1.4 mm Ultraflex 7 7.3 5.8 PVC Reactive Braid Copper Wires 1.9 mm POTA-FLEX 7 7.65 5.8 Shielded Polyethylene (Yellow) Twin Braid Copper Wires 1.9 mm Extraflex Bury 7 7.3 5.8 Shielded Polyethylene Reactive Braid Copper Wires 1.9 mm Airborne 10 10.3 3.5 Shielded Polyethylene Reactive Braid Solid Copper 2.78 mm Broad Pro 50C LSZH 10.3 3.6 LSZH Reactive Braid Solid Copper 2.76 mm Ultraflex 10C 10.3 3.9 PVC Reactive Braid Copper Wires 2.9 mm Hyperflex 10 10.3 3.9 PVC Reactive Braid Copper Wires 2.9 mm Extraflex Bury 10 10.3 3.9 Shielded Polyethylene Reactive Braid Copper Wires 2.9 mm Hyperflex 13 12.7 2.8 PVC Reactive Braid Copper Wires 3.8 mm