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Times Microwave LMR-400 Coaxial Cable – Low-Loss 50 Ohm Performance

Times Microwave LMR-400 Coaxial Cable is a high-performance 50 Ohm coax designed for RF communication systems where low signal loss and flexibility are essential. Ideal for ham radio, cellular, Wi-Fi, GPS, and broadcast applications, LMR-400 offers lower attenuation than standard RG-series coax and superior shielding performance.

LMR-400 Cable Construction and Materials

  • ✅ Inner Conductor: Solid bare copper (0.108 in / 2.74 mm diameter)
  • ✅ Dielectric: Foam polyethylene (0.285 in / 7.24 mm diameter)
  • ✅ Shielding: Bonded aluminum tape and 90% tinned copper braid for >90 dB isolation
  • ✅ Jacket: UV-resistant black polyethylene (0.405 in outer diameter)
  • ✅ Weight: 0.068 lb/ft (0.10 kg/m)

Electrical and RF Characteristics

  • ✅ Characteristic Impedance: 50 Ohms ±2 Ohms
  • ✅ Frequency Range: Up to 6 GHz
  • ✅ Attenuation @ 100 ft: 0.7 dB @ 30 MHz, 3.9 dB @ 900 MHz, 6.8 dB @ 2.5 GHz, 10.8 dB @ 5.8 GHz
  • ✅ Velocity of Propagation: 85%
  • ✅ Voltage Withstand: 2500 Volts RMS

Environmental and Mechanical Ratings

  • ✅ Operating Temperature: –40 °F to +185 °F (–40 °C to +85 °C)
  • ✅ Minimum Bend Radius: 1.0 inch (installation), 4.0 inches (repeated)
  • ✅ UV Resistance: Jacket rated for outdoor exposure
  • ✅ RoHS Compliant: Yes

Applications for LMR-400 Cable

  • ✅ HF/VHF/UHF ham radio antennas and feedlines
  • ✅ Repeaters and base station interconnects
  • ✅ GPS, Wi-Fi, cellular infrastructure, and DAS systems
  • ✅ Satellite communication and broadcast installations

📐 LMR-400 Data Sheet
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LMR-400 COAX 25 FT LMR-400 COAX 50 FT LMR-400 COAX 75 FT LMR-400 COAX 100 FT
LMR-400 Coax Cable - 50 FT
Our price: $109.40
Sale Price: $107.87
Savings: $1.53

(1)
LMR-400 COAX 75 FT
Our price: $164.09
Sale Price: $161.80
Savings: $2.29
LMR-400 COAX 100 FT
Our price: $218.79
Sale Price: $215.73
Savings: $3.06
The LMR-400 is a low loss braided coaxial cable. The 50 Ohm coax cable has a stranded outer conductor and a bare copper center conductor. It is 100 percent foil and 88 percent coverage braided shield prevents loss The LMR-400 is a low loss braided coaxial cable. The 50 Ohm coax cable has a stranded outer conductor and a bare copper center conductor. It is 100 percent foil and 88 percent coverage braided shield prevents loss The LMR-400 is a low loss braided coaxial cable. The 50 Ohm coax cable has a stranded outer conductor and a bare copper center conductor. It is 100 percent foil and 88 percent coverage braided shield prevents loss The LMR-400 is a low loss braided coaxial cable. The 50 Ohm coax cable has a stranded outer conductor and a bare copper center conductor. It is 100 percent foil and 88 percent coverage braided shield prevents loss
LMR-400 COAX 125 FT LMR-400 COAX 150 FT LMR-400 COAX 200 FT LMR-400 COAX 250 FT
LMR-400 COAX 125 FT
Our price: $273.49
LMR-400 COAX 150 FT
Our price: $328.19
Sale Price: $323.60
Savings: $4.59
LMR-400 Coax Cable - 200 FT
Our price: $437.58

(1)
LMR-400 COAX 250 FT
Our price: $546.98
Sale Price: $539.33
Savings: $7.65
The LMR-400 is a low loss braided coaxial cable. The 50 Ohm coax cable has a stranded outer conductor and a bare copper center conductor. It is 100 percent foil and 88 percent coverage braided  shield prevents loss The LMR-400 is a low loss braided coaxial cable. The 50 Ohm coax cable has a stranded outer conductor and a bare copper center conductor. It is 100 percent foil and 88 percent coverage braided shield prevents loss The LMR-400 is a low loss braided coaxial cable. The 50 Ohm coax cable has a stranded outer conductor and a bare copper center conductor. It is 100 percent foil and 88 percent coverage braided shield prevents loss The LMR-400 is a low loss braided coaxial cable. The 50 Ohm coax cable has a stranded outer conductor and a bare copper center conductor. It is 100 percent foil and 88 percent coverage braided  shield prevents loss
LMR-400 COAX 350 FT LMR-400 COAX 500 FT LMR-400 COAX 750 FT LMR-400 COAX "Sold By the Foot"
LMR-400 COAX 350 FT
Our price: $765.77
Sale Price: $755.06
Savings: $10.71
LMR-400 COAX 500 FT
Our price: $1,093.95
Sale Price: $1,078.65
Savings: $15.30
LMR-400 COAX 750 FT
Our price: $1,640.93
Sale Price: $1,617.98
Savings: $22.95
The LMR-400 is a low loss braided coaxial cable. The 50 Ohm coax cable has a stranded outer conductor and a bare copper center conductor. It is 100 percent foil and 88 percent coverage braided shield prevents loss The LMR-400 is a low loss braided coaxial cable. The 50 Ohm coax cable has a stranded outer conductor and a bare copper center conductor. It is 100 percent foil and 88 percent coverage braided shield prevents loss The LMR-400 is a low loss braided coaxial cable. The 50 Ohm coax cable has a stranded outer conductor and a bare copper center conductor. It is 100 percent foil and 88 percent coverage braided shield prevents loss LMR-400 COAX "Sold By The Foot" just enter the total number of feet needed in the Qty Box.
LMR-400 COAX 1000 FT LMR-400 COAX 292 FT LMR-400 COAX 325 FT
LMR-400 COAX 1000 FT
Our price: $2,187.90
Sale Price: $2,157.30
Savings: $30.60
LMR-400 COAX 292 FT
Our price: $638.87
LMR-400 COAX 325 FT
Our price: $711.07
Sale Price: $701.12
Savings: $9.95
The LMR-400 is a low loss braided coaxial cable. The 50 Ohm coax cable has a stranded outer conductor and a bare copper center conductor. It is 100 percent foil and 88 percent coverage braided shield prevents loss The LMR-400 is a low loss braided coaxial cable. The 50 Ohm coax cable has a stranded outer conductor and a bare copper center conductor. It is 100 percent foil and 88 percent coverage braided shield prevents loss The LMR-400 is a low loss braided coaxial cable. The 50 Ohm coax cable has a stranded outer conductor and a bare copper center conductor. It is 100 percent foil and 88 percent coverage braided shield prevents loss