RP-SMA Extension Cable: 2-inch 3-in, 4-in, 5-in, 6-in 8-inch. Male To Female


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  • 5
    Robust cables for RPSMA

    Posted by Steve Bienz on 3rd May 2017

    The cable used in these extenders seems much more robust as it is two or three times the diameter as similar cables from other vendors. Not sure of the gauge of wire, but insulation is resiliant even though the outer diameter is much greater.

RP-SMA Male to Female Cables: 3 inches to 8 inches

  • One end has an RP SMA male connector, and the other has an RP SMA female connector with a bulkhead nut and washer for mounting and weatherproofing. The connectors are straight RP-SMA male and straight RP-SMA female.
  • Other lengths of our RP-SMA extension cables from inches to meters.
  • The cable length stated in the length options is between the connectors. Data Alliance's RP-SMA connectors are not just standard but high-quality. Our cables feature soldered terminations, ensuring a low-loss connection with minimal discontinuities. This construction guarantees the durability and performance of our cables, making them a reliable and secure choice for your wireless setup.

The cable is double-shielded, low-loss, and very flexible/easily bendable. The cable type is equivalent to or better than LMR100: Coax with a black jacket has the same or better signal loss per meter and flexibility as LMR100 and less attenuation (signal loss) than RG174. The higher quality of this antenna cable coax translates into lower loss/better performance. The cable is equivalent to LMR-100 in thickness. This cable is rated for outdoor use and is also suitable for indoor use. The impedance is 50 Ohms.

Comparison of RG-174 vs LMR-100: diameter, coax, bend radius.

The temperature range for operational use of this 100-series coax and the cable assembly is -22 F ~ +185 F (-30 C ~ +85 C)

RP-SMA female connector includes a bulkhead nut and washer for mounting & waterproofing:

  • You can use this hardware to mount the connector (and thus the cable) on the wall of a network enclosure (to weatherproof the cable connection) or mount the connector on a case, panel, or Printed Circuit Board (PCB).
  • Weatherproofing: Seal the hole where the female connector is mounted by placing an O-ring between the enclosure's wall and the bulkhead nut and washer on the female connector.
  • The length of our standard RP-SMA-female connector (threaded part) is 3/8 inches. We have a longer option, 14.5mm, which is available. The longer 14.5mm option has an O-ring embedded in the flange to waterproof the port where the cable enters a network enclosure.
  • All our cables with SMA and RP-SMA female connectors have bulkhead mount hardware.


RP-SMA Male to Female 2, 3, 4, 5, 6, 8 inch


RP SMA Features and Key Information, including connector dimensions and materials composition

Compatibility with wireless standards & applications:

Our RP-SMA extension cables' range of frequency band compatibility (from 0 to 18GHz), consistently low broadband VSWR, and impedance matching to 50 Ohm antennas and cables make them suitable and compliant for all the above applications.

At Data Alliance, we prioritize your safety and the environment. That's why our antenna cables comply with ROHS 3 and REACH restrictions on lead content, other heavy metals, and toxic materials. This commitment to safety and environmental responsibility reassures you that our products are high quality and safe for you and the environment.

Setting up our RP-SMA male-to-female extension cable is a breeze. The RP-SMA male connector is designed to fit most Wi-Fi routers' jacks. In contrast, the RP-SMA female connector is perfectly compatible with the male connector on antennas with an RP-SMA male connector. This straightforward installation lets you position the antenna further from the router, optimizing your wireless signal.