Low Loss Flexible LMR-400 Outdoor Rated Coax Cable
Product Description
Key Specifications
| Parameter | Details |
|---|---|
| Model | LMR‑400 |
| Impedance | 50 Ω (standard for RF and communication systems) |
| Center Conductor | Solid copper-clad steel (CCS) or solid copper (low loss, high conductivity) |
| Dielectric | Foam polyethylene (low attenuation, high dielectric strength) |
| Shielding | Double shield: aluminum foil + tinned copper braid (95% coverage, excellent EMI/RFI shielding) |
| Outer Jacket | UV‑resistant black PE/PVC (waterproof, weatherproof, flame‑retardant) |
| Attenuation (Typical) | ~0.5 dB/m at 1 GHz; ~1.0 dB/m at 2.4 GHz; ~1.4 dB/m at 5.8 GHz |
| Operating Frequency | DC to 6 GHz (supports 4G, 5G, Wi‑Fi, GPS, and other RF systems) |
| Operating Temperature | -55℃ ~ +85℃ (outdoor wide temperature range) |
| Bend Radius | ~76 mm (flexible, easy routing) |
| Outer Diameter | ~10.3 mm |
| Application | Outdoor RF feeders, antenna cables, base station jumpers, amateur radio, and long‑distance RF links |
Key Features
-
Ultra‑Low Loss Performance
Foam dielectric and high‑quality shielding minimize signal attenuation, supporting long‑distance transmission with high power efficiency.
-
Flexible & Easy Routing
Balances low loss with good flexibility, enabling installation in tight spaces and complex routing paths.
-
Outdoor Rated & Weatherproof
UV‑resistant, waterproof, and flame‑retardant jacket ensures reliable performance in rain, snow, sunlight, and extreme temperatures.
-
Superior Shielding
Double‑shield construction provides 95%+ braid coverage, effectively blocking external interference and preventing signal leakage.
-
50 Ω Impedance Matching
Optimized for RF systems, ensuring maximum power transfer and minimal reflection in antenna and communication setups.
-
Wide Frequency Support
Operates reliably from DC to 6 GHz, compatible with 4G, 5G, Wi‑Fi, GPS, Bluetooth, and other modern RF standards.
Main Applications
- Outdoor Antenna Systems: RF feeders for cellular base stations, Wi‑Fi access points, GPS antennas, and amateur radio antennas.
- Telecommunication: 4G/5G base station jumpers, microwave links, and distributed antenna systems (DAS).
- Industrial & Commercial: RF links for security systems, broadcast equipment, and industrial wireless sensors.
- Marine & Automotive: Waterproof RF cables for marine communication and vehicle‑mounted antenna systems.
- Test & Measurement: Low‑loss test cables for RF laboratories and field testing.
Our Services
- Faster delivery
- Worldwide shipping
- Alternative supply
- Sample service
- Test and warranty
- In-Stock（Most products）
- Quality Assured
- Customization
- Competitive Pricing
- Cost-effective equipment
For this model, we have new original, cost-effective compatible, and economical second-hand . We provide you with a variety of choices, the same quality! Each products has been strictly tested to ensure stable performance, worry-free use, and enjoy an efficient experience. Full range of options: new original quality assurance, compatible models are super value and practical, and second-hand are economical and durable. Strict quality control: each products is tested before shipment. Worry-free after-sales: warranty commitment, normal use, and quality problems can be returned or exchanged.
About Us
Skyward Telecom also known as Skywardtel, it was established in 2009. From the beginning to the end, we have been based on the
motto of integrity，Our mission is to help engineers and businesses overcome the challenges of acquiring high-quality, low-cost
communication products.And has provided network security and computer asset management solutions for users in more than 80
countries around the world, and has been recognized by the market.
FAQ
1. who are we?
We are based in Guangdong, China, start from 2009,sell to Northern Europe(10.00%),Western Europe(10.00%),Mid East(10.00%),Eastern Europe(10.00%),South America(10.00%),North America(10.00%),Domestic Market(5.00%),South Asia(5.00%),Southern Europe(5.00%),Oceania(5.00%),Central America(5.00%),Africa(5.00%),Eastern Asia(5.00%),Southeast Asia(5.00%). There are total about 80-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
All products are sold only after passing professional technical testing;
Brand new, unopened switches, routers, servers, workstations, and other computer peripherals.
Brand new or refurbished equipment and circuit boards.BBU\RRU.
Brand new or custom-made communication cables (coaxial cables, fiber optic cables, network cables, power cords, AISG cables, etc).
Brand new or custom-made connectors.SMA connector, BNC connetor, RF connector, etc.
Brand new or custom-made cooling fans
Base station related accessories.
Weighing controller,Computer software,computer hardware,Weighing transmitter
4. why should you buy from us not from other suppliers?
Best quality！ Lowest price！ Quality assurance, honest transactions! Received high praise from numerous customers！ Leading through
exceptional service and creative solutions to help our partners succeed！
Skyward Telecom establish our foundation on integrity, win trust with professionalism, and warm hearts with service！
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,FCA,DDP；
Accepted Payment Currency:USD,EUR,HKD,GBP,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Cash;
Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Koren,Hindi,Italian
Welcome to contact us to get super surprising price
Our Services
- Faster delivery
- Worldwide shipping
- Alternative supply
- Sample service
- Test and warranty
- In-Stock（Most products）
- Quality Assured
- Customization
- Competitive Pricing
- Cost-effective equipment
For this model, we have new original, cost-effective compatible, and economical second-hand . We provide you with a variety of choices, the same quality! Each products has been strictly tested to ensure stable performance, worry-free use, and enjoy an efficient experience. Full range of options: new original quality assurance, compatible models are super value and practical, and second-hand are economical and durable. Strict quality control: each products is tested before shipment. Worry-free after-sales: warranty commitment, normal use, and quality problems can be returned or exchanged.
About Us
Skyward Telecom also known as Skywardtel, it was established in 2009. From the beginning to the end, we have been based on the
motto of integrity，Our mission is to help engineers and businesses overcome the challenges of acquiring high-quality, low-cost
communication products.And has provided network security and computer asset management solutions for users in more than 80
countries around the world, and has been recognized by the market.
FAQ
1. who are we?
We are based in Guangdong, China, start from 2009,sell to Northern Europe(10.00%),Western Europe(10.00%),Mid East(10.00%),Eastern Europe(10.00%),South America(10.00%),North America(10.00%),Domestic Market(5.00%),South Asia(5.00%),Southern Europe(5.00%),Oceania(5.00%),Central America(5.00%),Africa(5.00%),Eastern Asia(5.00%),Southeast Asia(5.00%). There are total about 80-100 people in our office.
2. how can we guarantee quality?
Always a pre-production sample before mass production;
Always final Inspection before shipment;
All products are sold only after passing professional technical testing;
Brand new, unopened switches, routers, servers, workstations, and other computer peripherals.
Brand new or refurbished equipment and circuit boards.BBU\RRU.
Brand new or custom-made communication cables (coaxial cables, fiber optic cables, network cables, power cords, AISG cables, etc).
Brand new or custom-made connectors.SMA connector, BNC connetor, RF connector, etc.
Brand new or custom-made cooling fans
Base station related accessories.
Weighing controller,Computer software,computer hardware,Weighing transmitter
4. why should you buy from us not from other suppliers?
Best quality！ Lowest price！ Quality assurance, honest transactions! Received high praise from numerous customers！ Leading through
exceptional service and creative solutions to help our partners succeed！
Skyward Telecom establish our foundation on integrity, win trust with professionalism, and warm hearts with service！
5. what services can we provide?
Accepted Delivery Terms: FOB,CFR,CIF,EXW,FAS,FCA,DDP；
Accepted Payment Currency:USD,EUR,HKD,GBP,CNY;
Accepted Payment Type: T/T,L/C,D/P D/A,MoneyGram,Credit Card,PayPal,Cash;
Language Spoken:English,Chinese,Spanish,Japanese,Portuguese,German,Arabic,French,Russian,Koren,Hindi,Italian
Welcome to contact us to get super surprising price
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