Coax Cable Assembly Manufacturer
Custom SMA-to-SMA and coaxial RF cable assemblies for antennas, wireless devices, test equipment and OEM production. Upload your drawing or BOM for connector, cable, impedance and test-plan review.
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Coaxial Cable Applications
RF and signal transmission solutions for demanding applications.
RF/Wireless
Antenna feeds, wireless infrastructure, base stations
Broadcast
TV/radio transmission, studio equipment cables
Satellite
Dish connections, LNB cables, ground stations
Wireless Networks
WiFi antenna extensions, access point cables
Video/CCTV
Security cameras, video distribution systems
Test Equipment
Precision RF test cables, laboratory connections
50Ω vs 75Ω: Select the System Impedance First
The cable and both connector interfaces should match the impedance defined by the equipment.
Choose 50Ω for RF systems
50Ω coax is the usual choice for RF and wireless equipment, antenna feeds, data radios, laboratory instruments, and test-and-measurement signal paths. Cable size and construction still depend on routing, loss, shielding, power, and environmental needs.
Choose 75Ω for video distribution
75Ω coax is common in broadcast video, CCTV, and CATV systems. It should remain a 75Ω signal path through the cable, connector, adapter, and equipment interface rather than changing impedance partway through the link.
Why an impedance mismatch matters
A change in characteristic impedance causes some signal energy to reflect toward the source. Those reflections can increase VSWR, reduce delivered signal, distort waveforms, and make measurements less repeatable. Matching every part of the RF path is therefore more important than selecting a cable by diameter or connector appearance alone.
Coaxial Cable Types
Common coaxial cable types for various applications.
Flexible coax
A flexible center conductor and braided shield make routing and repeated handling easier. Smaller, more flexible cables generally have more attenuation than larger low-loss constructions over the same run.
Semi-rigid coax
A solid outer conductor holds a formed route and provides consistent shielding. It suits stable internal microwave paths, but requires controlled forming and is not intended for frequent flexing.
Conformable coax
A hand-formable outer conductor offers easier routing than semi-rigid cable with better shape retention than ordinary flexible coax. Bend radius and re-forming limits remain cable-specific.
Selection balances diameter, flexibility, shielding, and attenuation. RG-178, RG-174, and RG-316 fit tight routing; RG-58 and RG-223 suit general RF interconnects; larger low-loss constructions are often considered for longer runs. If a product combines coax with power or control conductors, a multi-conductor cable assembly may simplify the overall interconnect.
RF Connectors
Precision RF connectors for your coaxial assemblies.
Frequency suitability is qualitative because performance depends on the exact connector variant, cable, launch, and termination. Threaded interfaces resist accidental disconnects; bayonet coupling supports quick mating; snap-on families save space. For miniature interfaces, compare our MMCX assembly options; for broader EMI-control strategies, see shielded cable assemblies.
RF Termination and Test Strategy
Coax performance depends on preserving the cable geometry through the connector and verifying the finished signal path.
Controlled termination workmanship
Crimp connectors depend on the specified strip dimensions, correct contact position, compatible dies, and a uniform ferrule crimp. Solder connectors require controlled heat and solder flow so the dielectric is not distorted and solder does not wick into the flexible cable.
Shield braid must be captured evenly without loose strands, excessive trimming, or gaps at the connector body. Maintaining the intended conductor spacing and avoiding dielectric damage limits impedance discontinuities at the termination. Strain relief should support the cable without forcing a sharp bend at the connector exit.
Choose the test for the failure mode
- Continuity: detects opens, shorts, and incorrect conductor-to-shield connections.
- VNA: measures insertion loss and return loss or VSWR across the required operating band, showing how much signal passes through and how much is reflected.
- TDR: views impedance versus distance to help locate a connector discontinuity, damaged section, or other fault along the cable.
- Visual and dimensional inspection: confirms connector seating, strip dimensions, crimp condition, labeling, and finished length against the build definition.
Acceptance limits must come from the application and the selected cable-and-connector combination. Learn how test scope is documented in our cable testing capabilities.
How the RF cable quote works
A fast review path for cable, connector, impedance and test requirements.
Upload drawing or BOM
Send cable type, connector callouts, length, bend limits and target quantity.
RF DFM review
We check impedance, connector termination, strain relief, sealing and test method.
Quote in 24 hours
You receive price, lead time, sample timing and any component substitution notes.
Sample to production
Prototype, pilot and recurring builds use controlled assembly and test records.
Quality Coaxial Solutions
Coaxial cables require precision assembly to maintain signal integrity. Our technicians are trained in proper RF connector installation techniques to ensure reliable, repeatable performance.
- Multiple cable type options
- Precision connector installation
- 50Ω and 75Ω impedances
- Custom lengths available
- Weatherproof options
- Continuity testing standard
- VSWR testing available
- Phase-matched assemblies
RF Testing
For critical RF applications, we offer additional testing beyond standard continuity checks to verify your assemblies meet performance requirements.
- Continuity verification
- VSWR/return loss testing
- Insertion loss measurement
- Phase matching (on request)
- Test reports provided
Precision Coaxial Cable Assembly Manufacturing
As a specialized coaxial cable assembly manufacturer, OurPCB delivers precision RF cables for wireless, broadcast, and test applications. Our cable assembly expertise covers RF through microwave applications, depending on the selected cable and connector, with 50Ω and 75Ω impedance options and precision connector termination for reliable signal transmission.
We manufacture coaxial assemblies using RG-58, RG-59, RG-6, RG-174, RG-316, LMR-400, and specialty cables selected for your frequency, power handling, and flexibility requirements. Connector options include SMA, BNC, N-Type, TNC, F-Type, SMB, MCX, and other RF connectors with crimp, solder, or compression termination.
If the product already specifies a compact 50 ohm snap-on connector and the buying risk is in the miniature cable definition rather than the broader RF family, our MCX cable assembly page is the better fit for quoting and release planning.
Applications include antenna feeds for wireless infrastructure, broadcast equipment connections, satellite dish installations, WiFi antenna extensions, CCTV video systems, and laboratory test cables. Weatherproof assemblies with appropriate connectors and sealing are available for outdoor installations.
Our RF expertise serves telecommunications providers, broadcast facilities, defense and aerospace contractors, and test equipment manufacturers. Combined with data cables and shielded harnesses, we offer complete signal connectivity solutions.
Every coaxial cable undergoes continuity testing with VSWR/return loss testing available for critical RF applications. Phase-matched assemblies are available for antenna arrays. With rapid prototyping and comprehensive testing, we ensure RF performance meets your specifications. Contact us for coaxial cable assembly quotes.
Coaxial Cable FAQ
We work with a wide range of coaxial cables including RG-58, RG-59, RG-6, RG-174, RG-316, LMR series, and specialty cables. We select cables based on your frequency requirements, power handling, flexibility needs, and environmental conditions.
We install most RF connector types including SMA, BNC, N-Type, TNC, F-Type, SMB, MCX, and many others. Connectors can be crimp, solder, or compression style depending on cable type and application requirements.
Yes. Continuity checks identify opens and shorts, while a vector network analyzer can characterize insertion loss and return loss or VSWR across the specified operating band. A time-domain reflectometer can help locate impedance discontinuities, connector faults, or cable damage along the assembly. The required method and acceptance limits depend on the cable, connector, length, and end-use specification.
Yes, we manufacture weatherproof coaxial assemblies using appropriate connectors and sealing methods. Options include weatherproof connector types, heat shrink sealing, and outdoor-rated cables for external installations.
Use the impedance specified by the equipment at both ends of the link. 50Ω is standard for most RF, wireless, data, and test-and-measurement systems; 75Ω is common in video, broadcast, CCTV, and CATV. Mixing impedances creates a discontinuity that reflects part of the signal and can worsen return loss or VSWR, so the cable and connectors should match the system impedance.
Start with system impedance and operating frequency, then consider cable length, allowable loss, routing space, bend and flex needs, shielding, environment, connector interface, and mating frequency. The complete cable-and-connector combination matters: a connector that is suitable by itself cannot compensate for a cable that is too lossy or mechanically unsuitable for the route.
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Real Project Experience
How we've handled similar wire harness and cable assembly projects
See de-identified project scenarios — supplier qualification, connector-shortage recovery, lead-time compression, and engineering spec lockdown — drawn from real production records.
Need Coaxial Cable Assemblies?
From antenna feeds to test equipment cables, we manufacture precision coaxial assemblies for reliable RF performance.