Product Description
UHF Female SO-239 to SMA Female RF Coaxial Adapter
The American Radio Supply RFA-8181 is a compact RF coaxial adapter designed to connect equipment with an SMA female jack to coaxial cables or equipment using a UHF female (SO-239) connection. This adapter provides a convenient way to interface different connector standards commonly found in amateur radio, two-way radio, scanner, antenna, and RF test applications.
The UHF Female SO-239 to SMA Female Adapter provides a simple and reliable solution for connecting RF equipment and coaxial components that use different connector standards. Its durable metal construction, knurled grip, and gold-plated center contact make it well suited for amateur radio, two-way radio, scanners, antennas, SDR equipment, RF testing, and general coaxial applications.
Note: UHF connectors are commonly used in amateur and CB radio applications, while SMA connectors are widely used on compact RF equipment and handheld radios. This adapter is intended to provide a convenient mechanical and electrical interface between compatible 50-ohm RF components.
Key Features
- UHF Female (SO-239) to SMA Female
- 50-ohm RF coaxial configuration
- Precision-machined metal construction
- Nickel-plated finish for durability and corrosion resistance
- Gold-plated center contacts for reliable electrical conductivity
- Knurled body provides a secure grip for installation
- Compact design for convenient field or bench use
- Ideal for adapting different RF connector standards
Common Applications
Amateur & Two-Way Radio:
Connect compatible SMA-equipped radio equipment to antenna systems and coaxial components using UHF/PL-259 connections.
Handheld Radios:
Useful when interfacing radios and accessories that use SMA connections with antenna systems employing standard UHF connectors.
Radio Scanners & Receivers:
Allows compatible SMA-equipped scanners, receivers, and SDR equipment to interface with UHF-based antenna cables and accessories.
RF Testing & Service:
Useful on test benches for connecting equipment with different RF connector types, including service monitors, dummy loads, antennas, and coaxial assemblies.
Specifications
Impedance: 50 Ohms
Frequency: DC to ~ 500 MHz *
Body: Nickel plated brass alloy
Contacts: Gold plated beryllium copper alloy
Configuration: Straight
* Limited by UHF side of the adapter
Other Details
See warranty details aboveProduct Videos
Custom Field
Product Reviews
4 Reviews Hide Reviews Show Reviews
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Works!
Works! I had purchased the TD-H3 HT radio and the adapter screwed onto the connection. Now I can get a better vertical antenna or I made a dipole with aluminum tape on a blue tarp. Thanks
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Well Made
This is my first order from American Radio Supply and I am a "Happy Camper". Shipping was fast. The adapter is well crafted and works as it should. Thanks!
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Works Great!
Just got a bunch of adapters and cables for a new hand held and antenna I got. They work great.
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Work Flawlessly
They were well packaged and worked flawlessly. I ordered a pair of these connectors for an antenna project. They arrived well before the antenna even though I had ordered it two days earlier.
