The LMR 400 Coax Cable features a bare copper tube for its inner conductor and aluminum tape for its outer conductor. This aluminum tape enables the tightest bend radius of any cable of similar size and performance. It also features a foam PE dielectric and a tinned copper braid. This coaxial cable also has a jacket, but materials vary per product. This cable has approval for outdoor, outdoor/watertight, and indoor/outdoor use. We also offer CMR cables that are indoor riser-rated. The LMR 400 coax offers a life expectancy of over 20 years and is UV resistant.

7 items

  • $0.00 / 50 FT
    • Application: Outdoor
    • Approx LBS/MFT: 68.00
    • Cond. Material: Bare Copper Clad Aluminum
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  • $0.00 / 50 FT
    • Application: Outdoor/Watertight
    • Approx LBS/MFT: 68.00
    • Cond. Material: Bare Copper Clad Aluminum
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  • $0.00 / 50 FT
    • Application: Indoor/Outdoor Riser CMR
    • Approx LBS/MFT: 68.00
    • Cond. Material: Bare Copper Clad Aluminum
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  • $0.00 /
    • Application: Indoor/Outdoor Riser CMR
    • Approx LBS/MFT: 68.00
    • Cond. Material: Bare Copper Clad Aluminum
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  • $0.00 / 50 FT
    • Application: Low Smoke Zero Halogen
    • Approx LBS/MFT: 68.00
    • Cond. Material: Bare Copper Clad Aluminum
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  • $0.00 / 50 FT
    • Application: General Purpose
    • Approx LBS/MFT: 68.00
    • Cond. Material: Bare Copper Clad Aluminum
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  • $0.00 / 100 FT
    • Application: General Purpose
    • Approx LBS/MFT: 68.00
    • Cond. Material: Bare Copper Clad Aluminum
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This Times Microwave LMR cable is ideal for use in jumper assemblies in wireless communications systems or as a drop-in replacement for RG8/9913 air-dielectric type cable. It is also suitable for use in short antenna feeder runs. This coax cable is applicable in applications that require an easily-routed, flexible low-loss RF cable (ex. WLL, GPS, LMR, WLAN, WISP, WiMax, SCADA, Mobile Antennas). 

LMR 400 Coax Cable Specifications

LMR 400 Construction:

  • Inner Conductor: Solid Bare Copper Coated Aluminum
  • Dielectric: Foam Polyethylene (FPE)
  • Outer Conductor: Aluminum Tape
  • Outer Braid: Tinned Copper
  • Jacket: Specified per part, see chart below

LMR 400 Ratings:

  • Temperature:
    • Installation: -40°C to 85°C
    • Storage: -70°C to 85°C
    • Operating: -40°C to 85°C
  • Voltage Rating: 2500 volts
  • UL/NEC Type CMR (LMR-400-FR and LMR-400-FR-PVC only)
  • CSA FT4 (LMR-400-FR and LMR-400-FR-PVC only)
  • RF Shielding: 50 dB greater than a typical single shielded coax (40 dB) - multi-ply bonded foil outer conductor rated conservatively at 90 dB
  • Carries MSHA-P rating for mining operations
  • Meets FAA FAR25 requirements

LMR connectors are manufactured by Times Microwave for the LMR-400 cable. These Times Microwave LMR 400 connectors are available in a wide selection of common interface types, including 7-16 DIN, Mini-UHF, UHF Male, BNC Male, N Female, N Male, SMA Male, and more. LMR 400 connectors that we carry include straight jack, straight plug, right angle, bulkhead jack, and reverse polarity connectors. These connectors feature either solder or non-solder center pins. Most LMR-400 connectors include a crimp outer attachment in standard hex crimp sizes.

Construction of LMR 400 Coax Connectors:

  • Description: Straight Jack, Right Angle, Straight Plug, Bulkhead Jack or Reverse Polarity (see part specs for full details)
  • Interface: 7-16 DIN Female, 7-16 DIN, 7-16 DIN Male, BNC Male, HN Male, QDS Male, UHF Male, Mini-UHF, N Female, N Male, SMA Male, TNC Female, TNC Male (see LMR 400 connector part specs below)
  • Inner Contact Attach: Solder or Spring Finger (see part specs for full details)
  • Outer Contact Attach: Crimp or Clamp (see part specs for full details)
  • Finish Body/Pin: Silver/Silver, Alballoy/Silver, Alballoy/Gold, Nickel/Silver, Silver/Gold, Nickel/Gold, Stainless Steel/Gold
  • Coupling Nut: Hex, Knurl, Hex/Knurl
  • See the datasheet below and individual LMR 400 coax connector part specs for more info.

LMR400 Standard Connectors:

See the datasheet below and individual LMR 400 coaxial cable specifications for full details.

Loss of Attenuation Specifications by Frequency

Frequency (MHz) Attenuation (db per 100 feet)
30 0.7
50 0.9
150 1.5
220 1.9
450 2.7
900 3.9
1500 5.1
1800 5.7
2000 6.0
2500 6.8
5800 10.8

Power Handling by Frequency

Frequency (MHz) Power (watts)
30 3.33
50 2.57
150 1.47
220 1.20
450 0.83
900 0.58
1500 0.44
1800 0.40
2000 0.37
2500 0.33
5800 0.21