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Liberty 18-CMR-SD Black Serial digital RG6 dual shield 4.5 GHz coaxial cable

Liberty 18-CMR-SD Black Serial digital RG6 dual shield 4.5 GHz coaxial cable
    Close Liberty 18-CMR-SD Black Serial digital RG6 dual shield 4.5 GHz coaxial cable

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    Shipping Method

    Ground Freight Contiguous USA


    Features and Benefits

    • 18 AWG solid annealed bare copper conductor
    • Gas-injected cellular polyethylene dielectric
    • 100% coverage aluminum/poly/aluminum foil inner shield
    • 95% coverage tinned copper braid shield
    • Flame rated PVC jacket
    • 4.5 GHz sweep, very low loss, excellent SRL
    • NEC CMR, CEC CMR FT4, RoHS compliant
    • 1000 foot spools


    • SMPTE Serial Digital Video, AES3id Digital Audio
    • S/PDIF digital audio, Subwoofer audio
    • All Base Band Video and Unbalanced Analog Audio
    • RF Modulated Signals, CATV, DBS, MATV


    Product Line:   18-CMR
    18 AWG solid core dual shielded RG6 serial digital coaxial cable NEC type CMR and CEC type CMR FT4. Product manufactured compliant to the requirements of UL444 for installations and applications in accordance with NEC articles 725, 800 and 820.
    Fiber Type Optical Characteristics
    18 AWG
    Solid annealed bare copper conductors
    Diameter: 0.040" | 1.02mm
    Conductor DCR: 6.40 Ω / 1000 | 20.99 Ω/KM
    Shield DCR: 2.90 Ω / 1000 | 9.51 Ω/KM
    Capacitance: 16.0 pF/FT | 52.48 pF/M
    Impedance: 75 3 Ω
    Velocity of Propagation: 82%
    Voltage rating: 300V
    SRL 1-450 MHz: 26dB
    SRL 451-850 MHz: 23dB
    SRL 851-3000 MHz: 18dB
    Buffer Regulatory
    Foam polyethylene
    Wall thickness: 0.070" | 1.78mm
    Diameter: 0.180" | 4.57mm
    NEC: CMR 75˚C
    CEC: CMG FT6 60˚C
    EU RoHS 2002/95/EC Compliant
    Color Code Packages
    Natural Reel: 1000 | 305M
    Weight: 42 Lbs/1000 | 63 Kg/KM
    Subassembly Installation
    N/A Pull Tension: 69 Lbs | 306 N
    Bend radius: 2.72" | 70mm unloaded
    Bend radius: 5.44" | 140mm loaded
    Final Assembly Applications
    N/A Riser Serial Digital Video (SMPTE)
    Riser CATV and DBS modulated video
    Riser baseband video signals
    Riser digital audio unbalanced formats
    Construct Performance
    100% aluminum/poly/aluminum tape bonded
    95% 16x9/36 AWG tinned copper braid shield
    3G HDSDI to 252 feet
    CATV to 236 feet
    CCTV to 560 feet
    S/PDIF digital audio 560 feet
    Jacket Final Outside Diameter (inches)
    Polyvinyl chloride 
    Colors: Black, Blue, Green, Red, White, Yellow
    Wall thickness: 0.032" | 0.81mm
    Diameter: 0.272" | 6.91mm