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Four gold-plated brass SMA-UHF coaxial adapters, straight style, 50 Ohm

usbroway

usbroway 4pc SMA-UHF Coaxial Connector Kit 50 Ohm

SKU CH-51TG-3CETT

Four-piece brass SMA-to-UHF adapter kit with gold-plated contacts covers male and female SO239 and PL259 connections at 50 Ohm impedance

  • TypeTwo-way Radio
  • Four adapters cover SMA and UHF combinations
  • Gold-plated brass for low-loss 50 Ohm connection
  • Straight-style connectors mate firmly with counterparts
  • Works with CB radio, handheld ham gear, walkie-talkies and SDR dongles
  • Includes SO239 to SMA male, SO239 to SMA female, PL259 to SMA male and PL259 to SMA female

SMA-UHF adapter kit for radio operators

This four-piece set bridges SMA and UHF connectors so handheld, mobile and base-station radios can share one antenna system. It suits amateur radio operators, CB users and SDR enthusiasts who need quick gender changes between SMA male, SMA female, PL259 and SO239 interfaces.

Gold-plated brass bodies rated at 50 Ohm

Straight-style adapters use brass construction with gold plating to maintain a consistent 50 Ohm impedance across the junction. The firm mating action keeps contact resistance low, so inserted loss stays minimal during transmit and receive cycles.

Four gender combinations cover common field needs

The kit supplies SO239 female to SMA male, SO239 female to SMA female, PL259 male to SMA male and PL259 male to SMA female adapters. Brass threads resist cross-threading during frequent swaps, while the compact straight profile fits tight equipment bays without adding leverage stress on radio ports.

Highlights

  • Four adapters cover SMA and UHF combinations
  • Gold-plated brass for low-loss 50 Ohm connection
  • Straight-style connectors mate firmly with counterparts
  • Works with CB radio, handheld ham gear, walkie-talkies and SDR dongles
  • Includes SO239 to SMA male, SO239 to SMA female, PL259 to SMA male and PL259 to SMA female

Specifications

TypeTwo-way Radio

Questions about this item

How do I install the SMA-UHF adapters and which step is often done incorrectly?

Match each adapter gender — SO239 female to SMA male, SO239 female to SMA female, PL259 male to SMA male, PL259 male to SMA female — then hand-tighten only; over-tightening with pliers damages the gold-plated brass threads.

What maintenance or replacement will the connector kit need later?

Inspect the gold-plated brass contacts periodically for corrosion or loosening; replace any adapter that shows oxidised threads or intermittent 50 ohm continuity.

What limit appears first during sustained high-power transmission?

The 50 ohm brass adapters heat up before the gold plating degrades, so duty cycle is limited by connector temperature rise rather than plating wear.

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