The Belden 8237 is an RG-8/U type coaxial cable designed for various wireless transmission applications, including point-to-point and point-to-multipoint communications, wireless microphones, two-way radios, amateur (Ham) radio, low-power FM, GPS, and RFID systems.

Key Specifications:

• Conductor:

  • Size: 13 AWG
  • Stranding: 7 strands of 21 AWG
  • Material: Bare Copper (BC)
  • Nominal Diameter: 0.085 inches (2.159 mm)

• Insulation:

  • Material: Polyethylene (PE)
  • Nominal Diameter: 0.285 inches (7.24 mm)
  • Color: White

• Shielding:

  • Type: Bare Copper Braid
  • Coverage: 95%

• Jacket:

  • Material: Polyvinyl Chloride (PVC)
  • Nominal Diameter: 0.403 inches (10.2 mm)
  • Color: Black

• Electrical Characteristics:

  • Characteristic Impedance: 50 Ohms
  • Nominal Capacitance (Conductor to Shield): 30.8 pF/ft (101 pF/m)
  • Nominal Velocity of Propagation: 66%
  • Nominal Conductor DC Resistance: 1.8 Ohms/1000 ft
  • Nominal Outer Shield DC Resistance: 1.2 Ohms/1000 ft

• Attenuation (Nominal):

  • 1 MHz: 0.2 dB/100 ft
  • 10 MHz: 0.6 dB/100 ft
  • 50 MHz: 1.3 dB/100 ft
  • 100 MHz: 1.9 dB/100 ft
  • 200 MHz: 2.8 dB/100 ft
  • 400 MHz: 4.2 dB/100 ft
  • 700 MHz: 5.9 dB/100 ft
  • 900 MHz: 6.9 dB/100 ft
  • 1000 MHz: 7.4 dB/100 ft
  • 4000 MHz: 23.2 dB/100 ft

• Power Rating (Maximum):

  • 50 MHz: 1,200 W
  • 100 MHz: 800 W
  • 400 MHz: 320 W
  • 1000 MHz: 180 W

• Mechanical Characteristics:

  • Operating Temperature Range: -40°C to +75°C
  • UL Temperature Rating: 75°C
  • Minimum Bend Radius (Installation): 4.5 inches (110 mm)
  • Maximum Pulling Tension: 190 lbs (86 kg)
  • Bulk Cable Weight: 102 lbs/1000 ft