The FZ400CU Ultra Flex Super Low Loss Coax from Moonraker is a best quality RF coax cable that cuts through the noise with military-grade precision.

This ultra-flexible workhorse matches the lowest loss performance of elite LMR400 and Web400 LMR cables, delivering ultra-clear transmissions over vast distances.

Beneath its rugged jacket lies moonrakers lowest loss coax cable optimised for professional applications, with specs that read like a laundry list of an RF broadcast engineer's dreams: ultra-low resistance, ultra-high capacitance, and ultra-fast signal velocity. So put down that bargain-bin cable and invest in true signal integrity—your radio deserves.

When it comes to ultra-low loss coaxial cables that deliver rock-solid signal integrity, Moonraker's FZ400CU is the real deal. Don't let the Webro LMR400 names fool you - this best quality RF coax cable was engineered from the ground up to achieve the lowest possible signal loss, making it an ideal choice for top-end RF broadcast applications that demand flawless performance.

Technical Specifications

• Diameter (mm) 10.29±0.20
• Min. Thickness: 1.0mm
• Copper Inner Conductor Diameter: 2.74±0.01mm
• Dielectric Foam PE Diameter: 7.24±0.15
• Impedance at 200MHz: 50±2 Ohms
• Capacitance: 54±3 Pf/m
• Dielectric Withstand: >500V
• Insulation Resistance at 20°: >5000 MOHMS. km
• Inner Conductor Resistance: <3.0 Ohms/km
• Outer Conductor Resistance: <9.8 Ohms/km
• Velocity: 85%
• Return Loss: 30-1000MHz: >20dB | 1000-3000MHz: >18dB
• Temperature Range: -10° - +80°C
• Min. Bending Radius: Fixed Laying: 30mm | Mobile Laying: 60mm

Insertion Losses

• Loss: 10MHz 1.61dB/100m
• Loss: 100MHz 4.50dB/100m
• Loss: 400MHz 8.40dB/100m
• Loss: 1000MHz 14.40dB/100m
• Loss: 2000MHz 19.68dB/100m
• Loss: 3000MHz 26.50dB/100m

Moonrakers Other RF Coax Cable Solutions:

• RG-174 Military Spec - 2.8mm coax cable that has enhanced materials and undergone rigorous testing for extreme conditions.
  • Ideal for very short runs
  • Can be used for making Baluns
  • Portable operations, can be used to go through windows
• RG-58 Military Spec / Standard - 5mm coaxial cable commonly used for general-purpose RF applications, while the military spec is designed to meet military standards.
  • Good for short runs
  • Can be used for mobile mounts
• Mini 8 Military Spec - 7mm high-performance, rugged version of the standard Mini 8 cable, built to withstand harsh environments providing reliable, low-loss signal transmission for demanding applications.
  • Good for mid-size VHF runs
  • Lower loss than RG-58
  • Good choice for HF applications
• RG-213 Military Spec - 9mm cable that has lower attenuation (signal loss) compared to RG-58, especially at higher frequencies. This makes it better for longer cable runs or high-frequency applications.
  • Can be used for larger runs
  • Good for HF/VHF to about 20m/30m
  • Stranded inside a conductor
• F-Zero Military Spec - Our professional 10mm diameter low-loss cable that has been specifically formulated and designed to get as close to 'Zero Loss' as possible.
  • Solid inner - harder to bend
  • Low loss on UHF
  • Higher power handling
• FZ-400CU - Our professional 10.30mm diameter flexible cable that has been specifically formulated and designed for industrial machinery, electrical installations, and automation systems.
  • Solid inner conductor
  • Low losses
  • Higher power handling
  • Foam in a Dielectric