Document Overview
Document Overview This article covers the official FCC electromagnetic compatibility (EMC) test report for the ETENWOLF S5C inflator pump. The document is a formal test report — not a certificate — issued by Waltek Testing Group HCT (Shenzhen) Co., Ltd., an accredited third-party testing laboratory…
- Document type
- Certification Report
- Prepared by
- Michelle Torres
- Published
- Last reviewed
- Topics
- North America: FCC / UL
Document Overview
This article covers the official FCC electromagnetic compatibility (EMC) test report for the ETENWOLF S5C inflator pump. The document is a formal test report — not a certificate — issued by Waltek Testing Group HCT (Shenzhen) Co., Ltd., an accredited third-party testing laboratory located in Longgang District, Shenzhen, Guangdong, China.
| Field | Detail |
|---|---|
| Reference Number | WTH25H07183674E |
| Document Type | FCC EMC Test Report |
| Test Standard | FCC CFR 47 Part 15 Subpart B |
| Test Report Form | TRF FCC CFR 47 Part 15 Subpart B-EMC-001-V01 |
| Internal Lab Reference | HCT/RF-23-21 |
| Date Sample Received | 2025-07-11 |
| Date of Testing | 2025-07-15 to 2025-07-16 |
| Date of Issue | 2025-07-22 |
| Overall Test Result | Pass |
The report covers conducted emission and radiated emission measurements, confirming that the S5C operates within the limits defined by the FCC CFR 47 Part 15 Subpart B standard for unintentional radiators.
Product Information
The equipment under test (EUT) is the S5C inflator pump, a portable cordless air compressor designed for inflating tires, sports equipment, and other inflatables. The product is manufactured by Guangdong Bestek Technology Co., Ltd. and marketed globally under the ETENWOLF brand.
| Attribute | Detail |
|---|---|
| EUT Name | Inflator Pump |
| Model Number | S5C |
| Trade Mark | N/A |
| Applicant | Guangdong Bestek Technology Co., LTD |
| Applicant Address | No.1, North Gaopu 8th Road, Yuancheng Industrial Park, Heyuan City, Guangdong, P.R. China |
| Manufacturer | Guangdong Bestek Technology Co., LTD |
| Manufacturer Address | No.1, North Gaopu 8th Road, Yuancheng Industrial Park, Heyuan City, Guangdong, P.R. China |
| Operating Mode 1 | Charging |
The S5C is classified as an unintentional radiator under FCC rules, meaning it is not designed to emit radio frequency energy intentionally but must nonetheless comply with emission limits to avoid interference with other devices and radio services.
Key Details
The test report is structured across two primary emission test categories: conducted emission and radiated emission. Both measurement campaigns were completed between 2025-07-15 and 2025-07-16 at the Waltek HCT facility in Shenzhen.
Conducted Emission
Conducted emission testing measures unwanted electrical noise that the EUT injects back into the mains supply line. The test was performed in accordance with the limits specified in FCC CFR 47 Part 15 Subpart B. The S5C passed all conducted emission limits across the applicable frequency range.
| Test Item | Standard Reference | Result |
|---|---|---|
| Conducted Emission – AC Mains Port | FCC CFR 47 Part 15 Subpart B | Pass |
Radiated Emission
Radiated emission testing measures electromagnetic energy radiated from the EUT and its connected cables. The measurement uncertainty, corrected amplitude, and margin calculations are documented in Sections 4.1 through 4.8 of the full report. The S5C passed all radiated emission limits.
| Test Item | Standard Reference | Result |
|---|---|---|
| Radiated Emission – Open Area / Semi-Anechoic Chamber | FCC CFR 47 Part 15 Subpart B | Pass |
Report Structure Summary
| Section | Description |
|---|---|
| Section 1 | General Information – EUT description, test standards, methodology, facility, and version |
| Section 2 | System Test Configuration – EUT setup justification, exercise software, equipment modifications, decision rule |
| Section 3 | Conducted Emission – Measurement uncertainty, limits, EUT setup, instrument setup, test procedure, data |
| Section 4 | Radiated Emission – Measurement uncertainty, limits, EUT setup, receiver setup, test procedure, amplitude and margin data |
| Appendix A | EUT Photographs |
| Appendix B | Test Setup Photographs |
Standards & Compliance
The S5C inflator pump was evaluated against the following regulatory standard for the United States market:
| Standard | Full Title | Scope |
|---|---|---|
| FCC CFR 47 Part 15 Subpart B | Code of Federal Regulations, Title 47, Part 15, Subpart B – Unintentional Radiators | Conducted and radiated electromagnetic emission limits for digital and electronic devices sold in the United States |
FCC Part 15 Subpart B applies to any electronic device that, as a byproduct of its intended function, generates and can radiate radio frequency energy. Compliance with this subpart is mandatory for products placed on the US market and is enforced by the Federal Communications Commission (FCC).
The test report form used is TRF FCC CFR 47 Part 15 Subpart B-EMC-001-V01, a standardized reporting template aligned with FCC laboratory accreditation requirements. The decision rule applied during testing is documented in Section 2.6 of the full report, ensuring measurement uncertainty is properly accounted for in the pass/fail determination.
The laboratory applied its internal procedure reference HCT/RF-23-21 throughout all test phases, covering both conducted and radiated emission measurements.
Validity & Certification Body
The test report was prepared and approved by qualified personnel at Waltek Testing Group HCT (Shenzhen) Co., Ltd., a recognized FCC-accredited testing laboratory.
| Field | Detail |
|---|---|
| Issuing Laboratory | Waltek Testing Group HCT (Shenzhen) Co., Ltd. |
| Laboratory Address | Building B, Tianji Industrial Park, 1/F. & 2/F. & 3/F., No.30-9, Laiyin Road, Xinsheng Community, Longgang Subdistrict, Longgang District, Shenzhen, Guangdong, China |
| Telephone | 0755-84616666 |
| Service Hotline | 400-0066-989 |
| [email protected] | |
| Prepared By | Snow Zeng |
| Approved By | Tony Wu |
| Date of Issue | 2025-07-22 |
| Report Reference Number | WTH25H07183674E |
| Total Pages | 26 |
This test report serves as the technical basis for FCC Supplier’s Declaration of Conformity (SDoC) or FCC certification filing for the S5C inflator pump. The validity of the report is tied to the product configuration tested; any hardware or firmware modification that could affect emissions may require re-testing. The report was issued on 2025-07-22 and covers the specific sample received on 2025-07-11.
Frequently Asked Questions
- What does it mean that the S5C passed FCC Part 15 Subpart B testing?
-
It means the S5C inflator pump has been independently verified to emit electromagnetic interference below the legal limits set by the Federal Communications Commission for unintentional radiators. Both conducted emissions (noise on the power line) and radiated emissions (energy transmitted through the air) were measured and confirmed to comply with FCC CFR 47 Part 15 Subpart B.
- Who conducted the FCC EMC testing for the S5C?
-
Testing was conducted by Waltek Testing Group HCT (Shenzhen) Co., Ltd., an accredited third-party EMC laboratory based in Longgang District, Shenzhen, China. The report was prepared by Snow Zeng and approved by Tony Wu, and carries reference number WTH25H07183674E, issued on 2025-07-22.
- What operating modes were tested for the S5C inflator pump?
-
The test report documents the S5C operating in Mode 1: Charging. All emission measurements were performed under the operating conditions defined in Section 2 (System Test Configuration) of the full 26-page report, ensuring the EUT was exercised in its worst-case emission state as required by FCC test methodology.
- Does this FCC test report cover the S5C for sale in countries other than the United States?
-
No. This specific report addresses compliance with FCC CFR 47 Part 15 Subpart B, which is a US market requirement. For other markets, separate certifications may apply — for example, CE marking with the relevant EMC directive for Europe, or KC certification for South Korea. Related documents for the S5C are listed in the section below.
Related Documents
The FCC EMC test report (Reference No. WTH25H07183674E) is one component of the full compliance documentation package for the S5C inflator pump. Depending on target markets and product features, the following related certification types may also be applicable:
- CE EMC Declaration of Conformity – Required for sale in the European Economic Area; covers electromagnetic compatibility under the EU EMC Directive 2014/30/EU and relevant IEC CISPR standards.
- CE Low Voltage Directive (LVD) Report – Applicable if the S5C operates on or charges from AC mains voltage; references IEC 60335 or IEC 62368 safety standards.
- UN 38.3 Battery Transport Test Report – If the S5C contains a lithium-ion or lithium-polymer battery, a UN 38.3 transport test report is required for air freight and international shipping compliance.
- KC Certification – Required for the South Korean market; covers both EMC and safety for electronic devices sold in Korea.
- RoHS Compliance Report – Confirms restriction of hazardous substances in the product materials in accordance with EU RoHS Directive 2011/65/EU.
- REACH SVHC Declaration – Documents that the product does not contain substances of very high concern above threshold levels under the EU REACH regulation.
- FCC ID Grant of Equipment Authorization – If the S5C contains an intentional radiator (e.g., Bluetooth), a separate FCC ID authorization would be required in addition to this Part 15 Subpart B SDoC report.
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