
SMA Male-to-Male Semi-Rigid RF Cable | 50Ω DC-18GHz for RG402/RG405/50-3/50-7 Cables – Designed for Drones, Test Equipment, and Base Stations
The SMA male-to-male semi-flexible RF cable by Bochuang Space-Time features a high-precision brass body and gold-plated center pin, ensuring low VSWR (≤ 1.3) and superior shielding performance across the DC-18 GHz frequency range. Designed to strictly adhere to the 50Ω impedance standard, it is compatible with mainstream coaxial cables including RG402, RG405, 50-3, and 50-7. The crimped connection enables fast, reliable installation without soldering, significantly improving on-site efficiency. Its threaded locking mechanism offers excellent vibration resistance and anti-loosening properties, making it ideal for automotive, outdoor, and industrial environments subject to constant vibration. The all-metal housing provides complete electromagnetic shielding to effectively suppress external interference and ensure signal purity. Widely used in 5G base stations, satellite communications, vector network analyzers, military equipment, and WLAN systems, this cable is the ideal choice for system integrators and engineers building high-reliability RF links.
In Stock (200units
BOCHUANG SPACETIME SMA Male-to-MaleSemi-rigid RF cable—— 50Ω DC–18GHz, low-loss high-frequency cable for drones, test equipment, and base stations









In high-frequency communications and precision testing, signal transmission stability and low loss are critical to system performance. Bochuang Shikong's newly launched...SMA Male-to-Male Semi-Rigid
FrequencyConnection lineDesigned specifically for DC-18 GHz ultra-wideband applications, featuring pure copper gold-plated connectors and 50Ω precision impedance matching to ensure high-fidelity performance in complex electromagnetic environments.
True, low-reflection signal transmission. Whether for drone video transmission, vector network analyzer calibration, or 5G base station debugging, it delivers superior performance.
Core Advantages & Technical Highlights:
50Ω precision impedance matching, low VSWR transmission:Designed to strictly adhere to the 50Ω RF standard with precision-machined internal structure, ensuring performance across the full DC-18 GHz frequency band.
Maintains an extremely low Voltage Standing Wave Ratio (VSWR ≤ 1.3). Ensures near-zero reflection and attenuation during signal transmission, guaranteeing optimal device performance—especially ideal for applications requiring high signal integrity.
Test and measurement scenarios requiring extremely high signal integrity.
Pure copper gold-plated connector: oxidation-resistant and corrosion-resistantThe center conductor and housing are both made of high-purity copper with a thick gold-plated surface. Compared to standard nickel-plated products
The gold-plated layer effectively prevents oxidation and blackening caused by long-term exposure to air, significantly reducing contact resistance. Even in harsh environments such as high humidity or salt spray, it remains
Maintains excellent conductivity and withstands thousands of insertion/removal cycles.
Thread-locking design for vibration resistance and anti-loosening:Featuring a classic threaded coupling mechanism, SMA connectors provide a highly secure mechanical connection compared to push-on interfaces.
Ensures reliable signal connectivity in high-vibration environments such as vehicle communications, drone flight, and industrial operations by preventing contact loss or accidental disconnection due to shaking.
Stop.
All-metal shielded enclosure with strong anti-interference performance:Crafted from premium brass via precision turning for durability. The all-metal housing provides effective electromagnetic shielding.
(EMI Shielding) effectively blocks external electromagnetic interference, ensuring signal purity and stability. Ideal for industrial sites with complex electromagnetic environments and
Outdoor base station.
Broadly compatible, plug and play:Fully compatible with the vast majority of standard SMA female connectors on the market, including 4G/5G CPE modules, GPS trackers, handheld radios, and more.
Walkie-talkies and various RF test instruments. No soldering required for seamless inter-device connectivity.
Technical Specifications:
Parameter Items | Specifications | Notes |
|---|---|---|
Product Model | SMA Male to SMA Male | Brand: Bochuang Shikong |
Connector Type | SMA Male Connector | Male-to-Male |
Impedance | 50Ω | Standard RF Impedance |
Frequency Range | DC - 18 GHz | Supports ultra-wideband transmission |
Cable Type | Semi-flexible coaxial cable | Optional RG402/RG405/50-3/50-7 and other specifications |
Cable Outer Diameter | 50-3: 4.18mm / 50-5: 6.90mm | Select based on actual needs |
center conductor | Solid copper with gold plating | High conductivity, oxidation-resistant |
Shield | Braided + Aluminum Foil Dual Shielding | Efficiently suppresses external interference |
Operating Temperature | -40℃ ~ +85℃ | Built for extreme environments |
Insertion/Extraction Cycles | ≥1000 times | Durable and reliable |
Use Cases:
Drone Communication System:For video transmission and remote control signal relay, ensuring stable, uninterrupted connectivity during high-altitude flight.
RF Test & Measurement:Enables high-precision signal calibration and analysis when paired with vector network analyzers, spectrum analyzers, and other equipment.
5G/4G Base Station Construction:Connect AntennaWorks with RRU to ensure high-speed data transmission.
Military and Aerospace Equipment:Provides reliable RF connections in high-vibration and extreme temperature environments.
Wireless LAN and the Internet of Things:High-frequency signal interconnection for routers, APs, sensors, and similar devices.
Why Choose BOCU Space-Time?
We specialize inRF ConnectorSpecializing in the research, development, and manufacturing of cable assemblies with 30 years of industry experience. All products undergo rigorous quality testing and comply with RoHS standards.
REACH and other international standards. We not only offer standardized products but also support customized services to meet your unique needs. Choosing Bochuang Space-Time means choosing stability,
Efficient and reliable RF solutions.
Need More Information?
Our technical team is ready to provide detailed specifications and customization options.
