Messi and Paoloni Ultraflex 7 Sahara – 50 Ω Coaxial Cable The Messi and Paoloni Ultraflex 7 Sahara is a high-quality 50 Ω coaxial cable designed for reliable amateur radio performance in hot and high-sun environments. With a 7.3 mm diameter, this cable offers an excellent balance of low signal loss, flexibility and durability, making it suitable for a wide range of installations. Ultraflex 7 Sahara features a durable PVC outer jacket finished in white, specifically developed to reflect sunlight and reduce heat absorption. This makes it particularly well suited to outdoor installations in hot climates or locations exposed to prolonged direct sunlight. Designed for dependable RF performance across HF, VHF and UHF bands, Ultraflex 7 Sahara is suitable for fixed, portable and mobile installations where both flexibility and thermal resistance are important. Available either cut to length per metre or supplied as a 100 metre drum, allowing you to select the option that best suits your installation requirements. Key Features 7.3 mm diameter 50 Ω coaxial cable Durable white PVC outer jacket designed for hot and sunny environments Reduced heat absorption compared to standard black jackets Suitable for HF, VHF and UHF amateur radio applications Good balance of flexibility and low signal loss Available per metre or as a 100 metre drum Ideal For Outdoor antenna installations in hot or high-sun locations HF, VHF and UHF amateur radio stations Installations where reduced cable heating is desirable When operating in hot climates or exposed outdoor locations, the Messi and Paoloni Ultraflex 7 Sahara provides a reliable, well-engineered coaxial solution you can trust. 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