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Corrugated 7 8 Feeder Cable 50 Ohms PE Coaxial 7/8'' Hard Line Cable for RF Transmission
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What is FMUSER 7 8 Feeder Cable?
In the broadcasting equipment industry, 7 8 Feeder Cable has many aliases, such as:
- 7 8 coaxial cable
- 7 8 coax
- 7/8'' feeder pipe
- 7 8 feeder
- 7/8 feed tube
- 7 8 coax feeder
- etc.
Because the appearance of the coaxial feedback tube is similar to that of the coaxial feed line and even the cable, there are often two methods that can be distinguished from each other:
The shielding layer
The shielding layer of the feeder consists of the shielding line. The shielding line is a transmission line wrapped in the signal line using a metal mesh woven layer. The shielding layer is composed of a copper tube.
Sizes
The feeder and the feeder are also very different in size. For the feed line, they are often very fine, and the common feeding line size is:
- RG-6 (6.15mm)
- RG-11 (10.30mm)
- RG-58 (4.95mm)
- RG-59 (6.15mm)
- RG-62 (6.15mm)
- RG-12 (14.10mm)
- RG-213 (10.33)
The feedback tube is thicker, and the common feedback tube size is:
- 1/2''
- 7/8''
- 1-5/8''
- 3-7/8''
- etc.
Designs
It is worth mentioning that for the first two types of sizes (1/2 and 7/8), there are two designs: hollow and solid conductor, and the latter two feeders are often empty designs, although hollow The cost of coaxial feedback tube is more expensive, its performance will be stronger than the solid feedback management, and it is more difficult to overhaul.
In addition to the difference in size, the performance is better than ordinary feeders, which is due to the unique design of the feeder, including Solid Shields, a foam dielectric, and a copper conductor.
To meet the needs of different customers, we also provide the hollow 7 8 feeder cables, which are more flexible and bendable than the solid feeder cables. Please contact our sales team if you need more details!
Watch our 10kW AM transmitter on-site construction video series in Cabanatuan, Philippines:
7 8 Feeder Cable Alternatives
Click the links below to explore more about the 7/8'' feeder cable alternatives, best price & quality!
1/2'' Coax | 1-5/8'' Coax |
Visit more about passive accessories, coaxial cables, and connectors. More>> |
Where to Buy the Best 7 8 Feeder Cable?
FMUSER is the premium manufacturer of 7 8 feeder cable. In most FM/AM/TV broadcasting stations, our 7 8 coaxial cable can be easily deployed in the connection of the transmitter antenna systems
Most importantly, every end-user of FMUSER 7 8 coax will be promised with:
- Outstanding performance
- Ultra flexibility
- Low loss or low attenuation
- Low PIM (passive intermodulation)
- UV resistance
- Easy-management, easy-installation
- Fire resistance
FMUSER 7-8 feeder cable has reliable thermal conductivity, which is due to its excellent low attenuation characteristics, which provides a considerable product life, this will reduce the long-term operating costs of the radio stations.
Thanks to our manufacturing factory, this 7 8 hardline coaxial cable can be applied in a wide range of applications, such as:
- Indoor
- Wireless Communication
- TV & Radio
- HF Defense
- Microwave
- Mobile Radio
- Cable Solutions
Terms | Specs | Notes |
---|---|---|
Physical | ||
Inner conductor | 9.4mm | Spiral wrinkle copper tube |
Insulator | 21.5mm | Foamed polyethylene |
Outer conductor | 25.0mm | Ring wrinkle copper tube |
jacket | 27.5mm | Polyethylene / flame retardant polyolefin |
Static minimum bending radius | 80mm | Single bending |
Dynamic minimum bending radius | 125mm | Repeated bending 15 times |
Tensile force | 2000N | N/A |
Cable weight | 500 (550) kg/km | N/A |
RF | ||
Characteristic impedance | 50±1Ω | N/A |
Transmission ratio | 0.88 | Nominal value |
Minimum insulation resistance | 500MΩ km | DC500V 1 minute |
capacitance | 76pF/m | Nominal value |
Withstand voltage | DC6000V | 1 minute |
Rated peak power | 90KW | |
Peak voltage | 3100V | |
Typical voltage standing wave ratio | 1.08 | 800M~1000MHz |
1.08 | 1700M~2000MHz | |
1.08 | 2100M~2400MHz | |
Average Power | ||
Frequency | Attenuation | Average power |
10 | 0.39 | 21.5 |
100 | 1.29 | 5.6 |
150 | 1.59 | 5.4 |
200 | 1.85 | 4.6 |
300 | 2.29 | 3.7 |
450 | 2.85 | 3 |
500 | 3.02 | 2.82 |
700 | 3.62 | 2.39 |
800 | 3.89 | 2.2 |
900 | 4.15 | 2.07 |
1000 | 4.4 | 1.95 |
1500 | 5.52 | 1.55 |
1700 | 5.92 | 1.45 |
1800 | 6.12 | 1.4 |
1900 | 6.31 | 1.35 |
2000 | 6.49 | 1.31 |
2100 | 6.68 | 1.28 |
2200 | 6.86 | 1.25 |
2400 | 7.22 | 1.2 |
2500 | 7.38 | 1.17 |
2700 | 7.72 | 1.1 |
3000 | 8.2 | 1.04 |
3400 | 8.84 | 0.98 |
4000 | 9.74 | 0.89 |
5000 | 11.13 | 0.78 |
- Please contact our sales team for more details!
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