1, Observe the Roundness of the Insulating medium of RF Coaxial Cable

Standard RF Coaxial Cable cross-section is rounded, the cable outer shield, aluminum foil affixed to the outer surface of the insulating medium, the outer surface of the medium, the more rounded, the smaller the gap between the aluminum foil and its appearance, the more rounded the gap becomes. Practice has proved that the smaller the gap, the better the performance of cable, in addition, a large air gap easily penetrated the shield and affect the service life of the cable.

2, Check RF Coaxial Cable Insulation Medium Consistency

RF Coaxial Cable insulation diameter fluctuations mainly affect media echo coefficients cable, this check can cross a section of cable insulation medium, double-check with a micrometer outer diameter of the points, to see whether it is consistent.

3, Detecte the RF Coaxial Cable Braid

RF Coaxial Cable braid shielding performance of the coaxial cable plays an important role in the centralized power supply and cable television lines or power return line, so the coaxial cable quality testing must be flat braid is tight look, by coaxial outer sheath cut, cut short coaxial cable braid, braid on the identification number, if consistent with the given values of the indicators for qualified, less than the target value given for the failure. In addition to single braided cable measured with a micrometer screw, at the same price, the thicker the diameter, the better the quality.

4, Check the Quality of Aluminum Foil of RF Coaxial Cable

Shielded RF Coaxial Cable plays an important role in the aluminum foil, which has an important role in preventing open external signal interference with the cable signal leakage connection, coaxial cable and therefore new entrants should check the quality of the aluminum foil. First, cut open the sheathing layer, and observe whether the wire braid layer of aluminum foil to maintain a good surface gloss; second is to take a length of cable, tightly wound in small metal shaft straightened to turn back around, repeated several times, then cut Watch cable sheathing layer of aluminum foil or without fracture phenomenon can also be a short cross-sectional drawing of aluminum foil and rub repeatedly in the hands, yet after repeated rubbing and stretching breakage, has a certain toughness qualified otherwise defective.

5. Check the Outer Sheath of Extruded Tightness of RF Coaxial Cable

High-quality RF Coaxial Cable outer sheath are very tight package, which can narrow the gap between the inner shield to prevent air into the cause oxidation, preventing relative sliding shield layer causes the electrical properties of drift, but crowded pack too tight will cause inconvenience stripping head increase the difficulty of construction. Check method is to take 1m long cable at the stripped end of the sheath, in order to force can not pull the thread core is suitable.

6, Observe the Cable into a Circle Shape