The frequency band is an ISM frequency band that is higher and open than the 2.4GHz frequency. In recent years, it has entered the field of product development. It complies with international standards such as 802.11a, FCC Part 15, ETSI EN 301 489, ETSI EN 301 893, EN 50385, EN 60950, and is currently one of the technologies that is expected to replace 2.4GHz wireless technology. Therefore, MORLAB has specially written this article for common Give a brief explanation. Taking common CE certification as an example, typical testing requirements that may be involved in 5.8G products are; Requirements, EMC requirements, safety requirements, etc. Among them, common RF testing items are as follows:
1 Carrier friends center frequency point test
Test 5.8GHz carrier frequency point
Test: As shown in Figure 1
Figure 1
Test limit: The actual test value is within ± 20ppm compared to the center frequency point value claimed by the manufacturer
2 Nominal Channel Bandwidth and Occupied Channel Bandwidth - Test of nominal bandwidth and occupied bandwidth
The occupied bandwidth refers to the width occupied by the energy (power) emitted from the entire channel of the communication product
Test block diagram: see Figure 1
Test limit: The occupied bandwidth is between 80% and 100% of the nominal bandwidth.
3 RF output power, Transmit Power Control (TPC) and power density - RF output power and power densityFunction of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China