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Our PL259 (UHF Male) to SO-239 (UHF Female) cable assemblies are purpose-built for high-power, long-distance antenna extension and feeder applications. Featuring the ultra-low-loss 1/2" Super Flexible (SF) coaxial cable, these jumpers deliver exceptional signal integrity for broadcast transmitters, amateur radio repeaters, cellular base stations, and industrial RF systems. The rugged PL259/SO-239 interface is the industry standard for high-power RF connectivity, while the 1/2" SF cable provides superior attenuation performance with excellent flexibility for tight bends and complex routing. Every assembly is 100% validated using industry-leading Rohde & Schwarz and Anritsu Vector Network Analyzers (VNA), ensuring optimal VSWR and insertion loss. As a trusted supplier for Fortune 500 companies with in-stock availability, we offer factory-direct pricing and rapid global fulfillment.
Parameter | Specification Details | ||
Connector A | PL259 (UHF Male Plug) - Solder/Crimp Type | ||
Connector B | SO-239 (UHF Female Jack) - Panel Mount | ||
Impedance | 50 Ohms | ||
Cable Type | 1/2" Super Flexible (SF) Coaxial Cable | ||
Cable OD | 12.7mm (0.5 inch) | ||
Frequency Range | DC – 300 MHz (UHF Connectors) | ||
VSWR | ≤ 1.20 (Tested via Rohde & Schwarz VNA) | ||
Attenuation @ 150MHz | 1.2 dB/100ft (approx.) | ||
Connector Material | Silver-Plated Brass Body / Gold-Plated Center Pin | ||
Dielectric Material | Foam PE (Cable Core) / PTFE (Connector) | ||
Shielding | Helical/Corrugated Copper + Tinned Copper Braid (>98% Coverage) | ||
Temperature Range | -40°C to +85°C (PE) | ||
Power Handling | Up to 1500W+ (depending on frequency) | ||
Bending Radius | 25mm (single bend) / 50mm (repeated) | ||
Certifications | CE, RoHS, FCC Compliant | ||
● Ultra-Low Loss 1/2" SF Cable: The 1/2" Super Flexible cable delivers exceptional signal performance with attenuation as low as 1.2 dB/100ft at 150MHz, making it ideal for long-distance feeder runs and high-power broadcast applications.
● High-Power Capability: With the robust PL259/SO-239 interface and 1/2" SF cable, these assemblies can handle 1500W+ at HF/VHF frequencies, perfect for broadcast transmitters, amateur radio amplifiers, and repeater systems.
● Superior Flexibility: The "SF" (Super Flexible) designation means this cable features a corrugated outer conductor and foam PE dielectric, allowing tight bending radii (25mm) for complex routing in equipment racks, towers, and enclosures.
● Precision CNC Machining: All connectors are machined on automated CNC lathes for perfect concentricity, consistent solder joints, and reliable threaded coupling.
● 100% VNA Lab Tested: Every batch is rigorously tested using top-tier Rohde & Schwarz and Anritsu VNAs to guarantee strict VSWR, insertion loss, and signal integrity compliance.
● Silver-Plated Brass Construction: PL259 and SO-239 bodies are silver-plated for excellent conductivity and corrosion resistance, while gold-plated center pins ensure low contact resistance and long-term reliability.
● Rugged & Field-Proven: The PL259/SO-239 interface is the industry standard for amateur radio, marine, and broadcast applications due to its robust mechanical design and high-power handling.
● In-Stock & Ready to Ship: Standard lengths (1m, 2m, 3m, 5m, 10m) are kept in inventory for immediate dispatch, with custom lengths up to 100m+ available upon request.
The Ultimate High-Power, Low-Loss Antenna Extension Solution
In demanding RF deployments—from broadcast transmitter sites to amateur radio contest stations—engineers require cable assemblies that deliver ultra-low signal loss, high power handling, and rugged durability. Our PL259 (UHF Male) to SO-239 (UHF Female) cable assembly, paired with 1/2" Super Flexible (SF) coaxial cable, is engineered to meet these exacting demands.
Bridging Equipment with Precision
The PL259 connector provides a rugged, threaded coupling interface that mates with SO-239 panels on transceivers, amplifiers, and antenna systems. The SO-239 Female Jack on the other end allows direct panel-mount integration into equipment cabinets, distribution panels, or antenna switch systems. This configuration is ideal for:
● Extending transceiver outputs to remote antenna panels
● Bridging high-power amplifiers to antenna tuning units (ATUs)
● Creating low-loss feeder runs in broadcast and repeater installations
● Connecting RF distribution systems in industrial and military applications
1/2" Super Flexible (SF) Cable: The Gold Standard for Low Loss
The 1/2" SF cable is the backbone of this assembly. Its key advantages include:
● Corrugated/Helical Outer Conductor: Provides superior shielding effectiveness (>98%) and maintains consistent impedance even when bent.
● Foam PE Dielectric: Delivers lower attenuation compared to solid PE, while maintaining excellent phase stability.
● Super Flexibility: Unlike traditional RG8 or LMR400, the SF cable can navigate tight bends and complex routing paths without compromising performance.
● High Power Handling: The large 1/2" diameter supports high peak and average power levels, making it suitable for broadcast and high-power amateur radio applications.
Uncompromising Quality Control & Engineering Expertise
As a trusted supplier to multiple Fortune 500 companies and global telecom operators, quality is non-negotiable. Our 1,500 sqm manufacturing facility in Zhenjiang (China's RF hub) is equipped with Rohde & Schwarz and Anritsu VNAs and PIM testers. Our team of 3 senior RF engineers, each with over 20 years of experience, oversees every production run, ensuring your cable assemblies meet the most demanding electrical and mechanical specifications before shipment.
● Broadcast & TV Transmitters: Low-loss feeder cables connecting FM/TV transmitters to antenna systems, combiners, and distribution panels in broadcast facilities.
● Amateur Radio (Ham Radio): High-power antenna extension cables for contest stations, repeater installations, and HF/VHF/UHF transceiver-to-antenna links.
● Cellular Base Stations & Repeaters: Antenna feeder extensions for NMT, LTE 450/700MHz, and other low-band cellular deployments.
● Marine Communications: Shipboard VHF/SSB radio installations requiring rugged, low-loss cable runs through tight compartments.
● RF Lab Testing & R&D: High-power patch cords for testing amplifiers, filters, and antenna systems in laboratory environments.
● Industrial & Military Communications: Reliable, field-proven connections for critical communications infrastructure, tactical radio systems, and radar installations.
We understand that off-the-shelf solutions don't fit every project. Backed by our senior RF engineering team with over 20 years of hands-on experience, we offer comprehensive OEM/ODM and customization services:
● Custom Lengths: From 0.5m bench-top jumpers to 100m+ feeder cables, cut to your exact specifications.
● Connector Variants: N-Type Male/Female, BNC, TNC, 7/16 DIN, or any combination with PL259/SO-239.
● Cable Upgrades: 1/2" SF with PE jacket for direct burial, LSZH (Low Smoke Zero Halogen) for indoor plenums, or UV-resistant jackets for outdoor exposure.
● Heat Shrink & Labeling: Custom heat shrink boots for strain relief and cable labeling for easy identification in complex installations.
● Weatherproofing: IP67-rated heat shrink and sealing kits for outdoor and rooftop deployments.
● Low MOQ & Fast Lead Time: Sample orders (1-5 pcs) ship within 3 days; bulk orders typically ship within 10-15 days. Free samples available for qualified projects (freight collect).
| Cable Type | OD (mm) | Attenuation @ 150MHz (dB/100ft) | Max Power (W) | Best For |
| RG58 | 4.95 | 6.2 | 300 | Short jumpers, lab use |
| LMR195 | 4.95 | 4.1 | 400 | Low-loss RG58 replacement |
| LMR400 | 10.3 | 1.3 | 1000+ | Long-distance, ultra-low-loss |
| RG8 | 10.3 | 1.8 | 800 | High-power, legacy systems |
| 1/2" SF | 12.7 | 1.2 | 1500+ | Ultimate low-loss, high-power |
The 1/2" SF cable delivers the lowest attenuation and highest power handling, making it the premium choice for critical, long-distance, and high-power applications.
Your Trusted RF Manufacturing Partner
Established in 2011 in Zhenjiang, Jiangsu (China's renowned hub for RF connectors), our 1,500 sqm state-of-the-art manufacturing facility specializes in high-performance RF coaxial connectors and cable assemblies.
● Engineering Excellence: Our technical backbone consists of 3 senior RF engineers, each bringing over 20 years of industry expertise, ensuring top-tier design and custom problem-solving.
● World-Class Testing: We utilize industry-leading Rohde & Schwarz and Anritsu VNAs and PIM testers to guarantee ultra-low PIM, stable VSWR, and optimal signal integrity.
● Global Reach & Trust: CE, RoHS, and FCC certified. We proudly export to North America (30%), Europe (30%), and the Middle East (20%). We are a fully audited, trusted supplier for multiple Fortune 500 companies, global telecom operators, and leading distributors.
Q1: What is the advantage of 1/2" SF cable over LMR400?
A: The 1/2" SF cable offers lower attenuation (1.2 dB/100ft vs. 1.3 dB/100ft at 150MHz), higher power handling (1500W+ vs. 1000W), and superior flexibility (25mm bending radius vs. 40mm for LMR400). It is the premium choice for critical, long-distance, and high-power applications where every dB counts.
Q2: Can I use this assembly for VHF/UHF frequencies above 300 MHz?
A: The PL259/SO-239 (UHF) connector interface is optimized for DC-300 MHz. For frequencies above 300 MHz, we recommend N-Type or 7/16 DIN connectors for better VSWR and performance. Please contact our engineering team for a recommendation based on your specific frequency.
Q3: What is the maximum length available for 1/2" SF cable assemblies?
A: We can manufacture assemblies up to 100 meters or longer. For very long runs, we recommend discussing your specific attenuation and power requirements with our engineers to ensure optimal performance.
Q4: Do you provide VSWR test reports with bulk orders?
A: Yes. Since we use top-tier Rohde & Schwarz and Anritsu VNAs in our lab, we can provide detailed VSWR and insertion loss test reports for every batch upon request.
Q5: What is your warranty policy?
A: We stand behind our quality. All our RF cable assemblies come with a standard 1-year replacement warranty against manufacturing defects.
Ready to secure your high-power RF links with factory-direct, in-stock quality?
Whether you need a single prototype jumper or a 10,000-piece bulk order for global deployment, our engineering team is ready to assist. With standard lengths in stock, we ship fast.
👉 Get a Free Quote & Sample Today!
● Email: minna_liao@bjdz.top
● WhatsApp / WeChat: +86 186 2128 3578
● Fill out the inquiry form below, and our RF specialists will reply within 12 hours with a customized solution and pricing.
● N-Type Male to N-Type Male 1/2" SF Low Loss Cable (For modern high-frequency feeder and tower-top links)
● PL259 to PL259 1/2" SF Cable Assembly (For direct transceiver-to-amplifier or switch connections)
● PL259 to N-Type Male 1/2" SF Cable (For bridging legacy UHF equipment with modern N-Type systems)
● 7/16 DIN Male to N-Type Male 1/2" SF Low PIM Cable (For cellular base station and DAS deployments)
● PL259 to SMA Male LMR195 / RG58 Jumper (For connecting UHF transceivers to compact RF modules)
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