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Communication cable 50ohms RG213 RG8 RG58 Stranded Coaxial Cable For Telecommunication Cable RG213 RG214
Working principle
The coaxial cable is divided into four layers from the inside to
the outside: the central copper wire (single-strand solid wire or
multi-strand wire), plastic insulator, mesh conductive layer and
wire sheath. The central copper wire and the mesh conductive layer
form a current loop. It is named because the central copper wire
and the mesh conductive layer are in a coaxial relationship.
Coaxial cables conduct alternating current rather than direct
current, which means the direction of the current reverses several
times per second.
If a general wire is used to transmit high-frequency current, this
wire will act as an antenna that transmits radio to the outside.
This effect loses the power of the signal and reduces the strength
of the received signal.
Coaxial cables were designed to solve exactly this problem. The
radio emitted by the central wire is isolated by the mesh
conductive layer, and the mesh conductive layer can control the
emitted radio by grounding.
There is also a problem with coaxial cables, that is, if a certain
section of the cable undergoes relatively large extrusion or
distortion, the distance between the central wire and the mesh
conductive layer will not be consistent, which will cause the
internal radio waves to be blocked. reflected back to the source
from which the signal was sent. This effect reduces the received
signal power. To overcome this problem, a plastic insulator is
inserted between the central wire and the mesh conductive layer to
ensure a consistent distance between them. This also causes the
characteristics of the cable to be relatively rigid and not easy to
bend.
The shielding material of the coaxial cable is mainly to improve
the outer conductor, from the initial tubular outer conductor to
single-layer braiding and double-layer metal. Although the tubular
outer conductor has very good shielding performance, it is not easy
to bend and is inconvenient to use. The shielding efficiency of
single-layer braiding is the worst, and the transfer impedance of
double-layer braiding is 3 times lower than that of one-layer
braiding. It can be seen that the shielding effect of double-layer
braiding has been greatly improved compared with single-layer
braiding. All major coaxial cable manufacturers are constantly
improving the outer conductor construction of the cable to maintain
its performance.
WHY CHOOSE US!
1. Any inquiries will be replied within 24 hours.
2. OEM/ODM available
1) Printing your logo on the cable.
2) Printing your logo on the pull our box, make according to your
design.
3) Any your idea on cable, packing box are available.
3. High quality, reasonable and competitive price, fast lead time.
4. Good after-Sale Service.
1) All products will have been strictly Quality Checked in house
before packing.
2) All products will be well packed before shipping.
5. Faster delivery
Sample order in stock, and 3-7 days for bulk production.
6. Shipping:
We have strong cooperation with DHL, TNT, UPS, FEDEX, EMS, China
Air Post.
You also can choose your own shipping forwarders.