Applicant Information
Applicant: Edifier International Limited
Address: P.O. Box 6264 General Post Office, Hong Kong
Manufacturer Information
Manufacturer: Beijing Edifier Technology Co., Ltd.
Address: 815, Floor 8, Shuangqiao Building, No.68, North Fourth Ring West Road, Haidian District, 100080 Beijing, P.R. China
Equipment Under Test (EUT)
EUT Name: Multimedia Speaker
Model No.: EDF100074
FCC ID: Z9G-EDF252
IC Test Standard(s): 10004A-EDF252
Test Standards
Standards Applied: FCC Rules and Regulations Part 15 Subpart C, RSS-247 Issue 3 August 2023, ANSI C63.10:2020, RSS-Gen Issue 5, Apr. 2018, Amendment 2 (February 2021)
Issue Date: 2024/07/31
Testing Laboratory
Laboratory: Guangdong Dongdian Testing Service Co., Ltd.
Address: Unit 2, Building 1, No. 17, Zongbu 2nd Road, Songshan Lake Park, Dongguan, Guangdong, China, 523808
Website: http://www.dgddt.com
Summary of Test Results
| Test Parameter | Clause No. | Result |
|---|---|---|
| Maximum Peak Output Power | FCC Part 15: 15.247(b)(1), RSS-247 Issue 3 clause 5.4(b) | Pass |
| 20 dB Bandwidth | FCC Part 15: 15.247(a)(1), RSS-247 Issue 3 clause 5.1(a) | Pass |
| 99% Bandwidth | RSS-Gen Issue 5 clause 6.7 | Pass |
| Carrier Frequency Separation | FCC Part 15: 15.247(a)(1), RSS-247 Issue 3 clause 5.1(b) | Pass |
| Number of Hopping Channel | FCC Part 15: 15.247(a)(1)(iii), RSS-247 Issue 3 clause 5.1(d) | Pass |
| Dwell Time | FCC Part 15: 15.247(a)(1)(iii), RSS-247 Issue 3 clause 5.1(d) | Pass |
| RF Conducted Spurious Emissions | FCC Part 15: 15.247(d), RSS-247 Issue 3 clause 5.5 | Pass |
| Radiated Emission | FCC Part 15: 15.205, 15.209, 15.247(d), RSS-247 Issue 3 clause 5.5, RSS-Gen Issue 5 clause 8.9, 8.10 | Pass |
| Band Edge Compliance | FCC Part 15: 15.205, 15.209, 15.247(d), RSS-247 Issue 3 clause 5.5, RSS-Gen Issue 5 clause 8.9, 8.10 | Pass |
| Antenna Requirement | FCC Part 15: 15.203, RSS-Gen Issue 5 clause 6.8 | Pass |
| Power Line Conducted Emissions | FCC Part 15: 15.207(a), RSS-Gen Issue 5 clause 8.8 | Pass |
General Test Information
Description of EUT
The EUT is a Multimedia Speaker, Model Number: EDF100074. It supports Bluetooth BR/EDR/LE, with this report focusing on Bluetooth BR/EDR functionality. The device operates on a power supply of 100-240V~, 50/60Hz.
Radio Specification
Operation Frequency: Bluetooth BR/EDR, 2402 MHz - 2480 MHz
Modulation: GFSK, π/4-DQPSK, 8DPSK
Antenna Information
Antenna Type: PIFA antenna
Max Antenna Gain: -0.29 dBi
Test Environment Conditions
Tests were conducted under the following environmental conditions:
- Temperature range: +15 to +35 °C
- Humidity range: 20% to 75%
- Pressure range: 86 kPa to 106 kPa
Key Test Results Overview
The Edifier EDF100074 Multimedia Speaker was tested for compliance with FCC Part 15 Subpart C and relevant ISED Canada standards (RSS-247, RSS-Gen). All tested parameters met the specified requirements.
20 dB Bandwidth & 99% Bandwidth
The 20 dB and 99% bandwidths were measured for GFSK, π/4-DQPSK, and 8DPSK modes. The results confirmed the emissions were contained within the operational frequency band.
Maximum Peak Output Power
Conducted peak output power was measured for all three Bluetooth modes. The maximum conducted power observed was 10.65 dBm, and the maximum EIRP was 10.36 dBm, which are well within the regulatory limits (1W or 30 dBm EIRP for this band).
Carrier Frequency Separation
The separation between adjacent hopping channel carrier frequencies was measured and found to be adequate, complying with the minimum requirements based on the 20 dB bandwidth.
Number of Hopping Channels
The device utilizes 79 hopping channels across the 2402 MHz to 2480 MHz band, exceeding the minimum requirement of 15 channels for frequency hopping systems in this band.
Dwell Time
The average time of occupancy (dwell time) on any channel was measured for various packet types (DH1, DH3, DH5, etc.). All measured dwell times were within the specified limit of 0.4 seconds within a 31.6-second observation period.
Band Edge Compliance
Both conducted and radiated band edge emissions were tested at the lower (2402 MHz) and upper (2480 MHz) band edges. The results showed that emissions outside the authorized band were compliant with the limits.
RF Conducted Spurious Emissions
Conducted spurious emissions were measured. The results indicated that all emissions outside the 2400-2483.5 MHz band were at least 20 dB below the highest in-band emission level.
Radiated Emission
Radiated emissions were measured across a wide frequency range (9 kHz to 18 GHz). The EUT demonstrated compliance with the field strength limits specified in FCC Part 15.209 and RSS-Gen sections 8.9 and 8.10 for restricted bands and general limits.
Power Line Conducted Emissions
Conducted emissions on the AC power lines were measured. The results confirmed that the EUT meets the conducted emission limits as per FCC Part 15.207(a) and RSS-Gen section 8.8.
Antenna Requirements
The EUT uses a PIFA antenna, and no other antenna type is furnished by the responsible party. The antenna gain is -0.29 dBi, which is within acceptable limits.
Visual Elements Description
Block Diagram of EUT Configuration
A block diagram illustrating the test setup configuration for the EUT was provided to show how the equipment was connected and arranged for testing.
Test Setup Photographs
Photographs depicting the physical setup of the EUT and test equipment during various testing procedures were included to visually document the test environment.
Photos of the EUT
Photographs of the Edifier EDF100074 Multimedia Speaker itself were provided to show its external appearance.
