Co-axial cable - RG174A/U (with or without connectors fitted)

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Co-axial cable - RG174A/U (with various fitted connector options)

Miniature 50 Ohm coaxial cable. Approximate lengths 3m (9ft 10"), 5m (16ft 5"), 10m (32ft 9"), 15m (49ft 2.5"), or 20m (65ft 7"). We can make cables to other lengths, just email us.

We also have pre-made 0.8m patch cables here: Patch Leads RG174. We have 20cm and 30cm pre-made 20cm & 30cm Patch Leads RG174 The pre-made cables are significantly cheaper than custom-made cables, but the choice of connectors is more restricted and we only stock them in short lengths.

Recommended maximum power: 125 Watts (HF bands).

Various connectors can be professionally fitted on one or both ends (great for antenna experimenters). Connector protected with adhesive lined heat-shrink sleeving for improved water resistance.

A top quality MIL-spec cable with a stranded inner. Perfect for feeding lightweight HF antennas!

Impedance:- 50Ω ±3
Inner conductor: 7/0.16
Dielectric: Solid Polyethylene
Screen: Tinned Copper Wire Braid
Sheath: PVC

Outer diameter: 2.8mm nominal
Velocity factor: 0.66
CPR Class:   F

 Attenuation nominal



db /m 
1 MHz 0.008 0.025
10 MHz 0.025  0.082
50 MHz 0.059  0.192
100 Mhz 0.086 0.281

38 Reviews Hide Reviews Show Reviews

  • 5
    RG174A/U preterminated coax

    Posted by David on 12th Jul 2019

    This is an excellent product that works well. I bought the 10 m version with a BNC plug at each end, it's really convenient and even works well on six metres.

  • 5
    Good quality coax

    Posted by Adrian Bayling on 20th Jun 2019

    Good braid density, nice flexible stranded inner conductor. I bought enough to feed a new linked dipole, and also to replace the RG58A/U on another. Happy customer.

  • 5

    Posted by Tim Scrimshaw on 23rd May 2019

    Very handy to have this professionally-assembled cable to hand in my portable kit. Thanks!

  • 5

    Posted by Donald ON7QR on 12th May 2019


  • 5
    Good flexible cable

    Posted by Carlo on 7th Apr 2019

    A good cable for my QRP activity, easy to bend and pass through obstacles, light weight, good for portable activity.

  • 5

    Posted by William on 24th Mar 2019

    Great light weight feeder for portable use and for home brew dipole ants.

  • 5
    Good light cable

    Posted by Carlo Morandi on 8th Mar 2019

    I like this cable, very good for QRP, flexible, light and easy to bend. Thin, it passes easily through tight passes. Not heavy losses in signal.

  • 5
    Good light cable

    Posted by Carlo Morandi on 7th Mar 2019

    Light weight, flexible, not a big loss. Useful in portable operations, I like it because it is easy to fit everywhere with a great bending radius and a very low weight

  • 5
    RG174 coaxial cable

    Posted by Alan Webb on 27th Jan 2019

    Purchased this coax cable because it’s lightweight of good quality and is good for around 100w. 10m length is ideal to put in your backpack it doesn’t take much room up on a winder (also purchased from Sotabeams) so keeps your back pack tidy and light . Ideal for Sota/portable operations. Highly Recommended.

  • 5

    Posted by Alan on 2nd Dec 2018

    Excellent cable