FCC Test Report
Report No.: AGC03615210301FE02
FCC ID: 2AFKR-S32
Application Purpose: Original Equipment
Product Designation: Bluetooth Speaker
Brand Name: Zealot
Model Name: S32 (and series models including S1, S2, S5-S9, S11-S13, S15-S19, S20-S21, S23-S31, S33-S43, S44-S55, S56-S67, S68-S74, Z1-Z20, A1-A20, P1-P17, M68, M88, M71)
Applicant: Shenzhen fanatics digital technology co., LTD
Date of Issue: Apr. 08, 2021
Standard(s): FCC Part 15.247
Report Version: V1.0
1. VERIFICATION OF COMPLIANCE
Applicant: Shenzhen fanatics digital technology co., LTD
Address: 401, 501, building 3, NO.8, Yong Tai Road, east District, BaiShi xia Community, Fu Yong street, BaoAn District, ShenZhen
Manufacturer: Shenzhen fanatics digital technology co., LTD
Factory: Shenzhen fanatics digital technology co., LTD
Test Model: S32
Series Model: All series models are the same as the test model except for the model names.
Date of Test: Mar. 23, 2021 to Apr. 08, 2021
Test Result: Pass
The equipment was tested by Attestation of Global Compliance (Shenzhen) Co., Ltd. and found to be in compliance with FCC Part 15.247 requirements.
2. GENERAL INFORMATION
2.1. PRODUCT DESCRIPTION
The EUT is designed as a “Bluetooth Speaker” utilizing GFSK technology.
| Parameter | Value |
|---|---|
| Operation Frequency | 2.402 GHz to 2.480GHz |
| RF Output Power | 1.036dBm (Max) |
| Bluetooth Version | V5.0 |
| Modulation | BR GFSK, EDR π/4-DQPSK, 8DPSK; BLE GFSK 1Mbps, GFSK 2Mbps |
| Number of channels | 40 Channels |
| Antenna Designation | PCB Antenna (Comply with requirements of the FCC part 15.203) |
| Antenna Gain | -0.58dBi |
| Hardware Version | v1.1 |
| Software Version | v1.1 |
| Power Supply | DC 3.7V by battery or DC 5V by adapter |
2.2. TABLE OF CARRIER FREQUENCYS
| Frequency Band | Channel Number | Frequency |
|---|---|---|
| 2400~2483.5MHz | 0 | 2402 MHz |
| 1 | 2404 MHz | |
| 38 | 2478 MHz | |
| 39 | 2480 MHz |
3. MEASUREMENT UNCERTAINTY
The reported uncertainty of measurement is ±U, where expended uncertainty U is based on a standard uncertainty multiplied by a coverage factor of k=2, providing a level of confidence of approximately 95%:
- Uncertainty of Conducted Emission: Uc = ±3.1 dB
- Uncertainty of Radiated Emission below 1GHz: Uc = ±4.0 dB
- Uncertainty of Radiated Emission above 1GHz: Uc = ±4.8 dB
- Uncertainty of total RF power, conducted: Uc = ±0.8 dB
- Uncertainty of RF power density, conducted: Uc = ±2.6 dB
- Uncertainty of spurious emissions, conducted: Uc = ±2.7 dB
- Uncertainty of Occupied Channel Bandwidth: Uc = ±2 %
4. DESCRIPTION OF TEST MODES
| NO. | TEST MODE DESCRIPTION |
|---|---|
| 1 | Low channel TX(2402MHz) |
| 2 | Middle channel TX(2440MHz) |
| 3 | High channel TX(2480MHz) |
Note: 1. Only the result of the worst case was recorded. 2. For Radiated Emission, 3-axis were chosen for testing. 3. For Conducted Test method, a temporary antenna connector was provided.
5. SYSTEM TEST CONFIGURATION
5.1. CONFIGURATION OF TESTED SYSTEM
Radiated Emission Configure: EUT connected to AE (Auxiliary Equipment).
Conducted Emission Configure: EUT connected to AE.
5.2. EQUIPMENT USED IN TESTED SYSTEM
| Item | Equipment | Model No. | ID or Specification | Remark |
|---|---|---|---|---|
| 1 | Bluetooth Speaker | S32 | 2AFKR-S32 | EUT |
| 2 | Adapter | TPA-46050100VU | DC 5V | AE |
| 3 | Charger line | N/A | 1m unshielded | AE |
5.3. SUMMARY OF TEST RESULTS
| FCC RULES | DESCRIPTION OF TEST | RESULT |
|---|---|---|
| 15.247 (b)(3) | Peak Output Power | Compliant |
| 15.247 (a)(2) | 6 dB Bandwidth | Compliant |
| 15.247 (d) | Conducted Spurious Emission | Compliant |
| 15.247 (e) | Maximum Conducted Output Power Density | Compliant |
| 15.209 | Radiated Emission | Compliant |
| 15.207 | Conducted Emission | Compliant |
6. TEST FACILITY
Test Site: Attestation of Global Compliance (Shenzhen) Co., Ltd
Location: 1-2/F, Building 19, Junfeng Industrial Park, Chongqing Road, Heping Community, Fuhai Street, Bao'an District, Shenzhen, Guangdong, China
Designation Number: CN1259
FCC Test Firm Registration Number: 975832
A2LA Cert. No.: 5054.02
Description: Attestation of Global Compliance (Shenzhen) Co., Ltd is accredited by A2LA.
TEST EQUIPMENT OF CONDUCTED EMISSION TEST
| Equipment | Manufacturer | Model | S/N | Cal. Date | Cal. Due |
|---|---|---|---|---|---|
| TEST RECEIVER | R&S | ESPI | 101206 | May 15, 2020 | May 14, 2021 |
| LISN | R&S | ESH2-Z5 | 100086 | Jul. 03, 2020 | Jul. 02, 2021 |
| Test software | R&S | ES-K1(Ver.V1.71) | N/A | N/A | N/A |
TEST EQUIPMENT OF RADIATED EMISSION TEST
| Equipment | Manufacturer | Model | S/N | Cal. Date | Cal. Due |
|---|---|---|---|---|---|
| TEST RECEIVER | R&S | ESCI | 10096 | May 15, 2020 | May 14, 2021 |
| EXA Signal Analyzer | Agilent | N9010A | MY53470504 | Dec. 07, 2020 | Dec. 06, 2021 |
| 2.4GHz Filter | EM Electronics | 2400-2500MHz | N/A | Mar. 23, 2020 | Mar. 22, 2022 |
| Attenuator | ZHINAN | E-002 | N/A | Sep. 03, 2020 | Sep. 02, 2022 |
| Horn antenna | SCHWARZBECK | BBHA 9170 | #768 | Sep. 21, 2019 | Sep. 20, 2021 |
| Active loop antenna (9K-30MHz) | ZHINAN | ZN30900C | 18051 | May 22, 2020 | May 21, 2022 |
| Double-Ridged Waveguide Horn | ETS LINDGREN | 3117 | 00034609 | May 17, 2019 | May 16, 2021 |
| Broadband Preamplifier | ETS LINDGREN | 3117PA | 00225134 | Sep. 03, 2020 | Sep. 02, 2022 |
| ANTENNA | SCHWARZBECK | VULB9168 | 494 | Jan. 09, 2019 | Jan. 08, 2021 |
| Test software | Tonscend | JS32-RE (Ver.2.5) | N/A | N/A | N/A |
7. PEAK OUTPUT POWER
7.1. MEASUREMENT PROCEDURE
For peak power test:
- Connect EUT RF output port to the Spectrum Analyzer through an RF attenuator.
- Set RBW = DTS bandwidth.
- Set VBW ≥ 3*RBW.
- Set SPAN = VBW.
- Sweep: Auto.
- Detector function: Peak.
- Trace: Max hold.
Allow trace to stabilize. Use the marker-to-peak function to set the marker to the peak of the emission. The indicated level is the peak output power, after any corrections for external attenuators and cables.
7.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION)
PEAK POWER TEST SETUP: A block diagram showing the EUT connected via an RF Attenuator and RF Cable to a Spectrum Analyzer.
7.3. LIMITS AND MEASUREMENT RESULT
PEAK OUTPUT POWER MEASUREMENT RESULT FOR GFSK MODULATION
| Frequency (GHz) | Peak Power (dBm) | Applicable Limits (dBm) | Pass or Fail |
|---|---|---|---|
| 2.402 | -0.925 | 30 | Pass |
| 2.440 | 0.102 | 30 | Pass |
| 2.480 | 1.036 | 30 | Pass |
(Plots for CH0, CH19, CH39 are available in the original document)
8. 6 DB BANDWIDTH
8.1. MEASUREMENT PROCEDURE
- Connect EUT RF output port to the Spectrum Analyzer through an RF attenuator.
- Set the EUT to operate at the low, middle, and high channels individually.
- Set SPA Centre Frequency = Operation Frequency, RBW= 100 kHz, VBW≥3×RBW.
- Set SPA Trace 1 Max hold, then View.
Note: The EUT was tested according to ANSI C63.10 for compliance to FCC PART 15.247 requirements.
8.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION)
The test set-up is the same as described in section 7.2.
8.3. LIMITS AND MEASUREMENT RESULTS
| Applicable Limits | Test Data (kHz) | Criteria | |
|---|---|---|---|
| >500KHZ | Low Channel | 505.6 | PASS |
| Middle Channel | 504.7 | PASS | |
| High Channel | 503.9 | PASS |
(Test plots for bandwidth are available in the original document)
9. CONDUCTED SPURIOUS EMISSION
9.1. MEASUREMENT PROCEDURE
- Connect EUT RF output port to the Spectrum Analyzer through an RF attenuator.
- Set the EUT to operate at the top, middle, and bottom frequencies individually.
- Set SPA Trace 1 Max hold, then View.
Note: The EUT was tested according to ANSI C63.10 for compliance to FCC PART 15.247 requirements.
9.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION)
The test set-up is the same as described in section 7.2.
9.3. MEASUREMENT EQUIPMENT USED
The equipment used is described in section 6.
9.4. LIMITS AND MEASUREMENT RESULT
| Applicable Limits | Measurement Result | Criteria |
|---|---|---|
| In any 100 kHz Bandwidth Outside the frequency band in which the spread spectrum intentional radiator is operating, the radio frequency power that is produced by the intentional radiator shall be at least 20 dB below that in 100KHz bandwidth within the band that contains the highest level of the desired power. | At least -20dBc than the reference level | PASS |
(Test plots for conducted spurious emission are available in the original document)
10. MAXIMUM CONDUCTED OUTPUT POWER SPECTRAL DENSITY
10.1. MEASUREMENT PROCEDURE
- Connect EUT RF output port to the Spectrum Analyzer through an RF attenuator.
- Set the EUT to operate at the top, middle, and bottom frequencies individually.
- Set the SPA Trace 1 Max hold, then View.
Note: The method of PKPSD in the KDB 558074 item 10.2 was used.
10.2. TEST SET-UP (BLOCK DIAGRAM OF CONFIGURATION)
Refer to Section 7.2.
10.3. MEASUREMENT EQUIPMENT USED
Refer to Section 6.
10.4. LIMITS AND MEASUREMENT RESULT
| Channel No. | PSD (dBm/3kHz) | Limit (dBm/3kHz) | Result |
|---|---|---|---|
| Low Channel | -19.189 | 8 | Pass |
| Middle Channel | -18.254 | 8 | Pass |
| High Channel | -17.425 | 8 | Pass |
(Test plots for spectral density are available in the original document)
11. RADIATED EMISSION
11.1. MEASUREMENT PROCEDURE
The EUT was placed on a turntable 0.8 or 1.5 meter above ground. The receiving antenna was placed 3 meters away. The turntable was rotated 360 degrees, and antenna height was varied from 1m to 4m to find maximum emissions. For emissions above 1GHz, 1MHz RBW and 3MHz VBW were used. Limits are expressed in terms of average value, and pulsed operation is considered. If peak mode emissions are 3 dB lower than the average limit, peak values are reported; otherwise, quasi-peak or average measurements are repeated.
11.2. TEST SETUP
Radiated Emission Test-Setup Frequency Below 30MHz: EUT on a table, 80cm high, on a metal ground plane, 3m distance to RX Antenna.
RADIATED EMISSION TEST SETUP 30MHz-1000MHz: EUT on a table, 80cm high, on a metal ground plane, 3m distance to RX Antenna (1-4m height).
RADIATED EMISSION TEST SETUP ABOVE 1000MHz: EUT on a table, 1.5m high, on a metal ground plane, 3m distance to RX Antenna (1-4m height).
11.3. LIMITS AND MEASUREMENT RESULT
15.209 Limit:
| Frequencies (MHz) | Field Strength (microvolts/meter) | Measurement Distance (meters) |
|---|---|---|
| 0.009~0.490 | 2400/F(kHz) | 300 |
| 0.490~1.705 | 24000/F(kHz) | 30 |
| 1.705~30.0 | 30 | 30 |
| 30~88 | 100 | 3 |
| 88~216 | 150 | 3 |
| 216~960 | 200 | 3 |
| Above 960 | 500 | 3 |
Note: All modes were tested; worst-case results are reported.
11.4. TEST RESULT
RADIATED EMISSION BELOW 30MHz: Spurious emissions from 9kHz to 30MHz attenuated more than 20 dB below the permissible value need not be reported.
RADIATED EMISSION BELOW 1GHZ (Mode 1):
| EUT | Bluetooth Speaker | Model Name | S32 |
|---|---|---|---|
| Temperature | 25° C | Relative Humidity | 55.4% |
| Pressure | 960hPa | Test Voltage | Normal Voltage |
| Test Mode | Mode 1 | Antenna | Horizontal |
| No. | Freq. (MHz) | Reading Level (dBuV) Peak | Correct Factor dB | Measurement (dBuV/m) Peak | Limit (dBuV/m) | Margin (dB) | Value Type |
|---|---|---|---|---|---|---|---|
| 1 | 90.1400 | 11.73 | 14.99 | 26.72 | 43.50 | -16.78 | peak |
| 2 | 175.5000 | 24.04 | 17.59 | 41.63 | 43.50 | -1.87 | peak |
| 3 | 209.4500 | 25.11 | 15.04 | 40.15 | 43.50 | -3.35 | QP |
| 4 | 303.5400 | 10.34 | 21.59 | 31.93 | 46.00 | -14.07 | peak |
| 5 | 642.0700 | 7.35 | 27.45 | 34.80 | 46.00 | -11.20 | peak |
| 6 | 832.1900 | 6.88 | 30.83 | 37.71 | 46.00 | -8.29 | peak |
RESULT: PASS
RADIATED EMISSION BELOW 1GHZ (Mode 1, Vertical Antenna):
| EUT | Bluetooth Speaker | Model Name | S32 |
|---|---|---|---|
| Temperature | 25° C | Relative Humidity | 55.4% |
| Pressure | 960hPa | Test Voltage | Normal Voltage |
| Test Mode | Mode 1 | Antenna | Vertical |
| No. | Freq. (MHz) | Reading Level (dBuV) Peak | Correct Factor dB | Measurement (dBuV/m) Peak | Limit (dBuV/m) | Margin (dB) | Value Type |
|---|---|---|---|---|---|---|---|
| 1 | 30.9699 | 19.26 | 12.20 | 31.46 | 40.00 | -8.54 | peak |
| 2 | 43.5800 | 19.64 | 14.60 | 34.24 | 40.00 | -5.76 | peak |
| 3 | 134.7600 | 15.70 | 20.38 | 36.08 | 43.50 | -7.42 | peak |
| 4 | 156.1000 | 20.88 | 19.59 | 40.47 | 43.50 | -3.03 | peak |
| 5 | 173.5600 | 21.72 | 17.79 | 39.51 | 43.50 | -3.99 | QP |
| 6 | 209.4500 | 24.74 | 15.04 | 39.78 | 43.50 | -3.72 | peak |
RESULT: PASS
RADIATED EMISSION ABOVE 1GHZ (Horizontal Antenna):
| Frequency (MHz) | Meter Reading (dBμV) | Factor (dB) | Emission Level (dBμV/m) | Limits (dBμV/m) | Margin (dB) | Value Type |
|---|---|---|---|---|---|---|
| 4804.000 | 44.29 | 0.08 | 44.37 | 74 | -29.63 | peak |
| 4804.000 | 35.48 | 0.08 | 35.56 | 54 | -18.44 | AVG |
| 7206.000 | 39.87 | 2.21 | 42.08 | 74 | -31.92 | peak |
| 7206.000 | 30.54 | 2.21 | 32.75 | 54 | -21.25 | AVG |
RADIATED EMISSION ABOVE 1GHZ (Vertical Antenna):
| Frequency (MHz) | Meter Reading (dBμV) | Factor (dB) | Emission Level (dBμV/m) | Limits (dBμV/m) | Margin (dB) | Value Type |
|---|---|---|---|---|---|---|
| 4804.000 | 45.16 | 0.08 | 45.24 | 74 | -28.76 | peak |
| 4804.000 | 36.34 | 0.08 | 36.42 | 54 | -17.58 | AVG |
| 7206.000 | 40.23 | 2.21 | 42.44 | 74 | -31.56 | peak |
| 7206.000 | 31.19 | 2.21 | 33.4 | 54 | -20.6 | AVG |
(Additional test results for Modes 2 and 3 are available in the original document)
12. FCC LINE CONDUCTED EMISSION TEST
12.1. LIMITS OF LINE CONDUCTED EMISSION TEST
| Frequency | Maximum RF Line Voltage | |
|---|---|---|
| (MHz) | Q.P.( dBuV) | Average( dBuV) |
| 150kHz~500kHz | 66-56 | 56-46 |
| 500kHz~5MHz | 56 | 46 |
| 5MHz~30MHz | 60 | 50 |
Note: 1. The lower limit applies at the transition frequency. 2. The limit decreases linearly with the logarithm of the frequency in the range 0.15 MHz to 0.50 MHz.
12.2. BLOCK DIAGRAM OF LINE CONDUCTED EMISSION TEST
A diagram shows the EUT & Support Units on a table, connected to a LISN (Line Impedance Stabilization Network), which is connected to a Spectrum Analyzer/Receiver.
12.3. PRELIMINARY PROCEDURE OF LINE CONDUCTED EMISSION TEST
The equipment was set up as per typical usage. Support equipment and I/O cables were positioned as per ANSI C63.10. The EUT received DC 5V power from an adapter. Emissions were measured on each current carrying line using a spectrum analyzer connected to the LISN. Two scans were taken: Line 1 with a 50 ohm load on Line 2, and vice versa. Analyzer scanned from 150 kHz to 30MHz. Emissions were maximized by cable manipulation.
12.4. FINAL PROCEDURE OF LINE CONDUCTED EMISSION TEST
EUT and support equipment were set up as per the preliminary test. A scan was taken on both power lines (Line 1 and Line 2), recording the six highest emissions. Emission frequency and amplitude were recorded. If EUT emission level was less than 2dB to the Average limit in Peak mode, the signal was re-checked using Q.P and Average detectors. The worst-case data is reported.
12.5. TEST RESULT OF LINE CONDUCTED EMISSION TEST
Line Conducted Emission Test Line 1-L:
| No. | Freq. (MHz) | Reading Level (dBuV) Peak | Correct Factor dB | Measurement (dBuV) Peak | Limit (dBuV) | Margin (dB) | P/F |
|---|---|---|---|---|---|---|---|
| 1 | 0.1620 | 46.02 | 12.80 | 58.82 | 65.36 | -6.54 | P |
| 2 | 0.1860 | 44.51 | 12.84 | 57.35 | 64.21 | -6.86 | P |
| 3 | 0.5060 | 34.56 | 13.74 | 48.30 | 56.00 | -7.70 | P |
| 4 | 1.3700 | 31.84 | 13.77 | 45.61 | 56.00 | -10.39 | P |
| 5 | 2.0540 | 33.10 | 13.65 | 46.75 | 56.00 | -9.25 | P |
| 6 | 2.7380 | 32.49 | 13.42 | 45.91 | 56.00 | -10.09 | P |
Line Conducted Emission Test Line 2-N:
| No. | Freq. (MHz) | Reading Level (dBuV) Peak | Correct Factor dB | Measurement (dBuV) Peak | Limit (dBuV) | Margin (dB) | P/F |
|---|---|---|---|---|---|---|---|
| 1 | 0.1660 | 46.33 | 12.81 | 59.14 | 65.15 | -6.01 | P |
| 2 | 0.2380 | 41.72 | 12.93 | 54.65 | 62.16 | -7.51 | P |
| 3 | 0.3460 | 35.17 | 13.24 | 48.41 | 59.06 | -10.65 | P |
| 4 | 0.5060 | 34.32 | 13.74 | 48.06 | 56.00 | -7.94 | P |
| 5 | 0.5299 | 33.32 | 13.76 | 47.08 | 56.00 | -8.92 | P |
| 6 | 2.0460 | 28.56 | 13.65 | 42.21 | 56.00 | -13.79 | P |
RESULT: PASS
