Notice: Until supplies are replenished in late February, db-FLEX cables will be substituted by LMR-400 cable. If you require the extra flexibility of db-FLEX for your cable, please contact us to place your custom cable on backorder.

30m LCU400 Super Low Loss Coaxial Cable


  • LCU400 50Ω series cabling

  • dB-FLEX Stranded Copper Conductor

  • UV Stable rubberised TPFE Jacket





Introducing dB-FLEX




dB-FLEX is Telco's flagship subtype of LCU400 cabling, designed for maximum weather resistance and usability. LCU400 dB-FLEX sports a 7-strand bare copper centre conductor which permits repeated bending and much greater flexibility, allowing an incredibly tight bend radius - similar to Times Microwave's LMR-400 UltraFlex. Both dB-FLEX and UltraFlex cables achieve this by trading off for a marginally higher per-metre loss, up from 0.128dB/m to 0.145dB/m @ 850MHz.



dB-FLEX has a UV-stable TPE (Thermoplastic Elastomer) jacket designed for harsh outdoor environments while maintaining maximum flexibility and minimising plastic memory (for improved wall-cavity feeding).




Please note emergency stock fulfilment may use standard LMR-400 cable. If you specifically require dB-FLEX cable please advise when placing order.





Importance of LCU400 Cable




When it comes to high frequency networks, such as 3G, 4G, WiFi and microwave band communications, cable loss becomes a big factor affecting both signal quality and strength. L400 series cable such as Telco LCU400 have one quarter the loss of standard grade cables like RG58, and one third the loss of LCU195 series cable.




When used in cellular-band communications (700-2700MHz), LCU400 coaxial cable is suitable for lengths up to 30 metres. For lengths exceeding 30m please see Heliax LDF4-50A. Full test reports are available upon request.









Electrical Specifications


Resistance: 50Ω

Capacitance: 78.4pF/m

Signal Loss (typical, terminated cable):

- 0.145dB/m @ 850MHz

- 0.151dB/m @ 940MHz

- 0.229dB/m @ 1810MHz

- 0.259dB/m @ 2170MHz

Frequency Range: DC-16GHz

Velocity of Propagation: 85%

Nominal Delay: 3.92ns/m

Voltage Withstand: 2500Volts DC

Peak Power: 16kW


Mechanical Specifications


Weight/100m: 12.8kg

Minimum Bend Radius: 25.4mm

Conductor Material: 7 Strand Bare Copper (2.74mm)

Insulating Material: Gas Injected Foamed Polyethylene (7.24mm)

Outer Shield Material:

- (1) Sealed APA Tape 100% Coverage (7.37mm)

- (2) Tinned Copper Braid 98% Coverage (8.17mm)

Outer Jacket Material: Thermoplastic Elastomer (TPE), Hone Finish (10.3mm)








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SKU 400-N-SMA-30
Shipping Weight 5.5800kg
Shipping Width 0.050m
Shipping Height 0.050m
Shipping Length 0.350m
Shipping Cubic 0.000875m3