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Versatile, factory-direct RF jumper assemblies designed for mobile communications, automotive telematics, and test equipment interfacing. We offer two essential configurations in a single product family: TNC Male to FME Female on RG58 for robust vehicle/industrial antenna extensions, and FME Male to SMA Male on RG316 for compact module-to-connector transitions. Both assemblies maintain true 50Ω impedance with gold-plated contacts, ensuring low VSWR and reliable signal integrity from DC to 6 GHz. As a direct manufacturer, we provide custom lengths, batch testing, and volume pricing for OEMs integrating cellular, GPS, Wi-Fi, and public safety radio systems.
Parameter | Specification | ||
Connector A | TNC Male (Standard Polarity) | ||
Connector B | FME Female | ||
Cable Type | RG58/U (MIL-C-17/28) | ||
Cable OD | 4.95 mm | ||
Impedance | 50 Ohms | ||
Frequency Range | DC – 3 GHz | ||
VSWR | ≤ 1.25 (DC–3 GHz) | ||
Attenuation @ 1 GHz | 0.66 dB/m | ||
Attenuation @ 2.4 GHz | 1.20 dB/m | ||
Body Material | Brass, Nickel Plated | ||
Center Contact | Gold-Plated Brass / Beryllium Copper | ||
Insulator | PTFE | ||
Min Bend Radius | 25 mm | ||
Operating Temp | -40°C to +85°C | ||
Parameter | Specification | ||
Connector A | FME Male | ||
Connector B | SMA Male | ||
Cable Type | RG316/U (MIL-C-17/94) | ||
Cable OD | 2.49 mm | ||
Impedance | 50 Ohms | ||
Frequency Range | DC – 6 GHz | ||
VSWR | ≤ 1.20 (DC–6 GHz) | ||
Attenuation @ 1 GHz | 1.10 dB/m | ||
Attenuation @ 2.4 GHz | 2.00 dB/m | ||
Body Material | Brass, Gold Plated (SMA) / Nickel Plated (FME) | ||
Center Contact | Gold-Plated Beryllium Copper | ||
Insulator | PTFE | ||
Min Bend Radius | 12 mm | ||
Operating Temp | -55°C to +165°C | ||
● Dual-Configuration Versatility: One product family covers both heavy-duty mobile installations (TNC-FME/RG58) and precision module interconnects (FME-SMA/RG316). Simplifies BOM management for multi-platform deployments spanning vehicles, IoT gateways, and lab fixtures.
● True 50Ω Impedance Matching: Precision-machined connectors and MIL-spec coaxial cables ensure consistent characteristic impedance across the entire assembly. VSWR ≤1.25 minimizes return loss and maximizes power transfer for cellular LTE/5G, GPS/GNSS, Wi-Fi, and VHF/UHF public safety bands.
● Gold-Plated Contacts for Low Loss & Corrosion Resistance: ≥0.5μm hard gold over nickel barrier ensures
● RG58 Durability for Mobile/Industrial Use: The TNC-FME/RG58 assembly features a rugged 4.95mm OD jacket resistant to abrasion, UV exposure, and crushing forces in vehicle harnesses, conduit runs, and industrial enclosures. Strain relief boots standard on both ends prevent cable fatigue at connector interfaces.
● RG316 Flexibility for Tight Spaces: The FME-SMA/RG316 assembly’s slim 2.49mm profile and 12mm bend radius enable clean routing inside compact modules, behind dashboard panels, and through sealed enclosure grommets where thicker cables cannot fit. Solid PTFE dielectric maintains performance up to 165°C for under-hood or reflow-soldered applications.
● FME Connector Advantage: FME’s knurled coupling nut allows hand-tightening without tools — ideal for field installations, temporary test setups, and confined spaces where wrench access is limited. Compatible with all standard FME adapters and antennas.
● 100% Factory Tested: Every assembly undergoes continuity check, VSWR sweep (DC–max freq), insertion loss verification, mechanical retention test, and visual inspection. Batch test reports and COC available for QA/QC compliance.
● Vehicle Telematics & Fleet Management: TNC Male connects to external roof-mount antenna; FME Female mates to in-cabin modem/router. RG58 withstands automotive vibration and temperature extremes (-40°C to +85°C).
● Public Safety & Land Mobile Radio: Bridge TNC-base station ports to FME-equipped handheld/mobile radios for dispatch, EMS, and utility field operations requiring quick-connect/disconnect capability.
● GPS/GNSS Antenna Extensions: FME Male to SMA Male RG316 pigtails link active GPS antennas to u-blox ZED-F9P, Quectel LC29H, or Telit LE910 modules in asset trackers, drones, and survey equipment.
● IoT Gateway Internal Routing: Connect external FME antenna ports to internal SMA-equipped WiFi/cellular modules in industrial gateways, smart meters, and edge computing devices.
● Test & Measurement Fixtures: Use as calibrated adapter cables between VNAs, spectrum analyzers, and DUTs with mixed TNC/FME/SMA interfaces. Low VSWR ensures measurement accuracy.
● Marine & Outdoor Wireless: RG58’s UV-resistant jacket and gold-plated connectors resist saltwater corrosion for shipboard AIS, VHF, and satellite communication systems.
● Amateur Radio & SDR: Adapt TNC transceiver outputs to FME portable antennas or SMA-based software-defined radio frontends for HF/VHF/UHF experimentation.
● Temporary Field Deployments: FME’s tool-free mating enables rapid setup/breakdown of emergency comms, event WiFi, and disaster response networks.
● Custom Lengths: RG58: 0.3m to 10m in 0.1m increments. RG316: 0.1m to 3m in 0.05m increments. Non-standard lengths welcome.
● Alternative Cable Options: Upgrade RG58 to LMR-195/LMR-200 for lower loss; upgrade RG316 to RG178/RG405 for higher frequency or tighter bend radius.
● Connector Variants: RP-TNC, SMA Female, FME Female, or BNC options available. Specify polarity and gender at time of order.
● Strain Relief & Booting: Heat-shrink, molded rubber, or spring-guard boots for high-vibration or IP67-sealed environments.
● Jacket Colors: Black (standard), white, gray, blue, or custom colors for coding and aesthetics. UV-stabilized PE jacket for permanent outdoor use.
● Private Labeling & Packaging: Laser-engraved logos, custom labels, anti-static bags, and bulk/reel packaging for automated assembly lines.
● Mixed Orders: Combine both configurations, lengths, and cable types in a single PO with no separate MOQs.
● Fast Turnaround: Samples ship in 3–5 days; bulk production in 7–12 days. Global shipping via DHL/FedEx/UPS with full tracking.
Q1: What’s the difference between FME and SMA/TNC?
A: FME uses a knurled hand-tight coupling nut (no tools needed), making it ideal for field use and tight spaces. SMA and TNC require wrenches for proper torque. Electrically, all three are 50Ω; mechanically, FME is smaller than TNC but larger than SMA. Never force mismatched connectors — verify interface type before ordering.
Q2: Can I use RG58 for 5G or WiFi 6E above 3 GHz?
A: Not recommended. RG58 attenuation exceeds 2 dB/m above 3 GHz, causing significant signal degradation. For frequencies >3 GHz, use the FME-SMA/RG316 configuration (rated to 6 GHz) or upgrade to LMR-200/RG405. Specify your operating frequency band for optimal cable recommendation.
Q3: Is the FME connector weatherproof?
A: Standard FME connectors are not IP-rated. For outdoor/marine use, specify assemblies with heat-shrink boots and UV-resistant jackets. Always seal exposed connections with self-amalgamating tape or silicone grease in wet environments.
Q4: How do I ensure proper torque on TNC/SMA connectors?
A: Use a calibrated torque wrench: TNC = 5 in-lbs (0.56 N·m), SMA = 8 in-lbs (0.9 N·m). Over-torquing damages threads and dielectric; under-torquing causes intermittent contact and elevated VSWR. FME connectors are hand-tight only — do not use pliers.
Q5: Are these cables suitable for transmit applications?
A: Yes. Both RG58 and RG316 handle typical mobile/IoT transmit power levels (
Q6: Do you provide CAD models or datasheets?
A: Yes. 3D STEP files, 2D DXF drawings, and electrical datasheets (including VSWR/loss curves) are available free upon request. Custom footprint support for non-standard panel cutouts.
Q7: What certifications do these assemblies carry?
A: All components are RoHS 3.0, REACH, and CE compliant. RG58/RG316 meet MIL-C-17 specifications. Full material declarations, conflict mineral reports, and country of origin certificates available for supply chain compliance.
Q8: What is the MOQ and sample policy?
A: No MOQ for stock lengths (0.5m/1m/2m). Custom lengths: 50-piece MOQ. First-time customers may order 1–5 samples free (pay shipping only). Sample lead time: 2–3 business days.
Mobile-ready durability. Module-scale precision. Factory-direct value.
Stop sourcing generic adapters that fail in the field. Partner with a verified RF manufacturer delivering true MIL-spec coax, gold-plated reliability, dual-configuration versatility, and 100% tested quality — at direct-factory pricing with expert application support.
👉 Request Your Custom Quote & Free Sample Today!
● Email: minna_liao@bjdz.top
● WhatsApp / WeChat: +86 186 2128 3578
● Tell us: Configuration (TNC-FME/RG58 or FME-SMA/RG316), required length, quantity, and target application — our RF engineers respond within 12 hours with datasheet, CAD files, loss calculator, and competitive volume pricing!
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