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Precautions for the use of microwave radio frequency test cables

Date:2021-11-20 16:18

Microwave & RF Coax Test cable (English name Microwave&RF Coax Test cable) is a kind of high-precision system test consumables commonly used in the field of wireless communication. It is used in conjunction with test instruments. The most common ones are Agilent, Rohde & Schwarz, Anrisu, etc. Network analyzer, sweeper.

Level classification:

1. Military aerospace grade, the main feature is that the phase amplitude is very stable, resistant to high and low temperature and other environmental factors, VSWR is small, and the frequency reaches 26.5Ghz, 40Ghz, 50Ghz, 60Ghz, 75Ghz, 110Ghz.

Two, experimental level

Stable performance parameters, precision

Three, mass production test level

Durable and economical.

Precautions and methods for use:

Environmental requirements:  The product should be stored in an environment where the temperature is -20/60℃, the relative humidity is ≤75%, and is dust-proof and non-corrosive gas. 

Before using the test cable assembly, check whether the cable connector used matches the device end interface, especially the precision millimeter wave connector.

When using the test cable assembly, it must be tightened with a torque wrench and cannot exceed the maximum torque specified by the connector. The correct connector connection method is: after aligning the male and female connectors of the same type of connector, hold the female with one hand, and rotate the locking nut of the male with the other hand, while ensuring that the inner and outer conductors do not rotate relative to each other. , It is strictly forbidden to rotate the female connector. If it is a nut with a non-slip knurled structure, tighten it with your fingers. When using the test cable, the number of bending times should be minimized, otherwise the service life of the cable will be shortened. Due to the complicated test environment, when bending is required, the bending radius cannot be less than the minimum bending radius of the cable itself. When using the test cable assembly, ensure that the test table is clean and tidy. Any impact or extrusion may damage the electrical performance of the cable. It is strictly forbidden to install a cable protective cover without authorization, so as not to damage the mechanical structure of the cable and shorten its service life. At the end of the test, the test cable should be removed in time to check whether the connector interface is clean, damaged, and whether the interface depth is within the acceptable range. After confirming that it is correct, use clean compressed air to blow off the debris attached to the surface of the medium, and cover the protective cap. Store in a suitable environment. It is strictly forbidden to use test cables with problems, so as not to damage the interface between the DUT and the test system and affect the test accuracy of the DUT. 

Test cable assembly, incorrect operation, frequent use will shorten the service life of the test cable. The number of bending times of the cable is about 7000-10000 times, the Eastample supertest @ series can reach 100,000-500,000 times, the design life of the connector is about 500-1000 times, and Eastample >5,000-20,000.

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