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Detailed description

Return loss test

Detection standard

  • Detection specification

Where can I go to get a complete return loss test solution? BAIJIAN Materials Testing Agency provides return loss testing services. It is a national high-tech enterprise, a third-party materials laboratory, and a CMA qualification certification agency. It is a collectively owned scientific research institution with complete laboratory instruments. , a strong scientific research team, adhering to the concept of scientific research and dedication, engaged in performance testing, non-standard testing, unknown substance detection and identification, industrial problem diagnosis and testing, composition testing, failure testing, corrosion testing, etc. Test reports will be issued in 7-15 working days to support The QR code system checks authenticity, and multiple laboratory branches across the country support nationwide door-to-door sampling/sample delivery testing services.

Test period: 7-15 working days

Testing fee: Initial inspection of samples. After the initial inspection, a quotation will be made based on the customer's testing needs and the complexity of the experiment.

Return loss test range

Optical fiber, antenna unit, network cable, coupler, optical device, high-definition cable, communication cable, optical waveguide device, insulated core wire, etc.

Test items: Return loss test

Test method introduction

Back Return Loss is an assessment of the degree of signal reflection in the radio frequency band. It refers to the loss of the transmitted signal when the signal is reflected back from the surface of a conductor. Commonly used return loss test methods include:

Reflectometer method: Use a reflectometer to connect the test device to a standard impedance, and calculate the return loss by measuring the amplitude and time delay of the reflected signal.

Vector Network Analyzer method: Use a vector network analyzer to scan the test device, calculate the reflection coefficient, and then calculate the return loss.

Sliding Short Circuit method: By adding a movable short-circuit piece in front of the test device, the amplitude and time delay of the reflected signal are measured at different positions to calculate the return loss.

Time Domain Reflectometry method: By sending a pulse signal to a port of the test line, measuring the time delay and amplitude of the reflected signal, and then calculating the return loss.

Among them, the reflectometer method and the vector network analyzer method are commonly used methods.

What does the BAIJIAN test report do? What problems can it help you solve?

1. Sales report. (Sales need to provide third-party testing reports to make their products more unique, let the product data speak for themselves, and make customers more confident in the quality of their products.)

2. Research and development reports. (In the process of developing new products, we encountered some thorny issues about ingredients. We used third-party testing data to find the cause of the problem, solve the problem in a timely manner, shorten the R&D cycle, and reduce R&D costs)

3. Improve products quality. (Discover problems with your own products through comparison of third-party testing data, improve product problems, improve quality, and reduce production costs)

4. Use of scientific research paper data.

Return loss test standard

GJB 6459-2008 Return loss measurement of optical fiber devices in the 1000nm-1100nm band Method

GJB 8786-2015 Method for measuring return loss of optical fiber devices in the 1000nm~1100nm band

ITU-T SERIES G SUPP 14-2007 Method for measuring return loss rules

JJF 1325-2011 Calibration specifications for optical return loss meters for communications

ITU-T SERIE G SUPP 14 SPANISH-2007 Method for measuring regular return loss

IEC 61580 :1995 Measurement of return loss in waveguides and waveguide assemblies

KS C IEC 61580-2005 (2020 Measurement of return loss in waveguides and waveguide assemblies

KS C IEC 61580:2005 Waveguides and Measurement of return loss of waveguide assemblies

IEC 61580-1995 Measurement of return loss of waveguides and waveguide assemblies

ANSI/SCTE 101-2011 Return loss of power cord splice connectors

What are the advantages of BAIJIAN Material Testing Laboratory?

1. A collectively owned testing institution with complete qualifications and scientific, fair and accurate test reports.

2. Multiple laboratory branches are spread across the country, supporting door-to-door sampling/sample delivery for testing.

3. The testing cycle is short, the testing cost is low, and the experimental plan is more complete.

4. Initial inspection samples , no testing fees will be charged during the initial inspection.

5. Test report, support scanning QR code to check authenticity.

BAIJIAN testing process

1. Send samples .(Communicate with engineers, submit your own testing requirements and send samples to our research institute)

2. Initial inspection samples. (After receiving the samples, conduct initial inspection samples and formulate a detailed experimental plan)< /p>

3. Quotation. (After the initial inspection, based on the customer’s testing needs and actualQuote according to the complexity of the test)

4. Both parties confirm, sign a confidentiality agreement, and start the experiment.

5. It takes 7-15 working days to complete the experiment.

6. Mail the test report and provide post-service.

The above is the relevant introduction to return loss testing. If you have other needs, you can consult the laboratory engineer to help you solve it.

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