As a leading manufacturer of RF passive components, Hefei BRI Electronic & Technology Co., Ltd. presents our premium 7/8 coaxial cable, explicitly engineered to deliver outstanding performance for in-building distributed antenna systems (DAS) and modern mobile telecommunication networks. This robust 7/8″ coaxial feeder cable features a high-quality copper tube inner conductor and an annular corrugated copper tube outer conductor. This specialized construction ensures exceptional shielding attenuation ($\ge120dB$) and guarantees minimal 7/8 coaxial cable loss across long transmission runs.
Supporting a maximum operating frequency of 5.2 GHz and a massive peak power rating of 90 kW, this versatile 7/8″ inch coaxial cable handles high-capacity data loads effortlessly. Furthermore, it maintains pristine signal clarity within high-density environments by achieving an ultra-low PIM rating of <-160dBc. Supplied with a durable PE or LSZH jacket, it adapts seamlessly to diverse environmental conditions and installation temperatures. Whether you are deploying a dense indoor network or upgrading a base transceiver station, our transmission lines deliver the absolute reliability you demand. Explore our comprehensive 7/8 coaxial cable specifications below to plan your next infrastructure upgrade.
Product Specifications
Material and Dimensions
| Feature | Specification |
| Inner Conductor | Copper tube, Ø9.00±0.10mm
|
| Insulation | Foam PE, 22.40±0.30mm
|
| Outer Conductor | Annular corrugated copper tube, 24.90±0.25mm
|
| Jacket | PE Black, 27.50±0.25mm
|
Electrical Specifications
| Feature | Specification |
| Impedance | 50±1 Ω
|
| Maximum Operating Frequency | 5.2 GHz
|
| Relative Velocity of Propagation | 87%
|
| PIM (3rd Order, 2*20W) | <-160dBc
|
| Peak Power Rating | 90 kW
|
| Capacitance | 76 pF/m
|
| Shielding Attenuation | ≤120dB
|
Mechanical Specifications
| Feature | Specification | |
| Min. Bending Radius (Single) | 120 mm
| |
| Min. Bending Radius (Repeated) | 250 mm
| |
| Tensile Strength | 1400 N
| |
| Bending Moment | 18 Nm
| |
| Flat Plate Crush Strength |
|
Frequently Asked Questions (FAQ)
1. How does 7/8 coaxial cable loss compare to thinner cable types?
Because of its larger diameter and precision-engineered annular corrugated copper outer conductor, a 7/8 coaxial cable exhibits significantly lower signal attenuation than thinner alternatives like a 1/2″ cable. For example, at 800MHz, the 7/8 coaxial cable loss is strictly maintained at an impressively low 3.64 dB/100m, making it the ideal choice for main feeder lines that must cover long distances without sacrificing signal strength.
2. What are the most critical 7/8 coaxial cable specifications to consider for a DAS project?
When integrating this cable into a distributed antenna system, the key 7/8 coaxial cable specifications to evaluate include the maximum operating frequency (5.2 GHz), the PIM rating (<-160dBc), and the peak power rating (90 kW). These metrics ensure the transmission line can handle high-capacity data from modern BTS equipment without introducing passive intermodulation noise.
3. Can this 7/8″ inch coaxial cable connect directly to Hefei BRI’s POIs and combiners?
Yes. Our 7/8″ coaxial feeder cable serves as the perfect low-loss backbone for your passive network. It can be easily fitted with standard DIN or 4.3-10 connectors to interface perfectly with our dual band combiners, triplexers, and multi-port POI systems, ensuring seamless 50 $\Omega$ impedance matching throughout your entire in-building distributed antenna system.




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