Test Setup Photos (inside report)

FCC ID: 2AR4G-HL7618RD

Test Setup Photos

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FCCID_4197310

EMC TEST REPORT
(FULL COMPLIANCE)

Report Number: 103714598LEX-006
Project Number: G103714598

Report Issue Date: 2/1/2019

Model(s) Tested: sTMS Mini Transcranial Magnetic
Stimulator

Standards: FCC Part 15B
ICES-003 Issue 6
FCC Part 27
(Radiated Spurious Emissions)

Tested by: Client:
Intertek Testing Services NA, Inc. eNeura, Inc.
731 Enterprise Dr. 715 N Pastoria Avenue
Lexington, KY 40510 Sunnyvale, CA 94085
USA USA

Report prepared by Report reviewed by

Bryan Taylor, Team Leader Brian Daffin, Engineer

This report is for the exclusive use of Intertek's Client and is provided pursuant to the agreement between Intertek and its Client. Intertek's
responsibility and liability are limited to the terms and conditions of the agreement. Intertek assumes no liability to any party, other than to the
Client in accordance with the agreement, for any loss, expense or damage occasioned by the use of this report. Only the Client is authorized to
copy or distribute this report and then only in its entirety. Any use of the Intertek name or one of its marks for the sale or advertisement of the
tested material, product or service must first be approved in writing by Intertek. The observations and test results in this report are relevant only
to the sample tested. This report by itself does not imply that the material, product, or service is or has ever been under an Intertek certification
program.

Intertek Testing Services NA, Inc.

Evaluation For: eNeura, Inc.
Product: sTMS Mini Transcranial Magnetic Stimulator
EMC Test Report Date: 2/1/2019

Table of Contents

1 Introduction and Conclusion ..................................................................................................................... 4
2 Test Summary .......................................................................................................................................... 4
3 Client Information .................................................................................................................................... 5
4 Description of Equipment under Test and Variant Models .......................................................................... 6
5 System Setup and Method ........................................................................................................................ 7
6 Radiated Emissions ................................................................................................................................ 11
7 Conducted Emissions .............................................................................................................................. 27
8 Revision History ..................................................................................................................................... 31

Non-Specific EMC Report Shell Rev. December 2017 Page 3 of 31
Report Number: 103714598LEX-006

Evaluation For: eNeura, Inc.
Product: sTMS Mini Transcranial Magnetic Stimulator
EMC Test Report Date: 2/1/2019

1 Introduction and Conclusion

The tests indicated in section 2.0 were performed on the product constructed as described in section 4.0. The
remaining test sections are the verbatim text from the actual data sheets used during the investigation. These test
sections include the test name, the specified test Method, a list of the actual Test Equipment Used, documentation
Photos, Results and raw Data. No additions, deviations, or exclusions have been made from the standard(s) unless
specifically noted.

Based on the results of our investigation, we have concluded the product tested complies with the requirements of
the standard(s) indicated. The results obtained in this test report pertain only to the item(s) tested. Intertek does
not make any claims of compliance for samples or variants which were not tested.

2 Test Summary

Section Test full name Result

Radiated Emissions (Transmitters Idle)
6 Pass
(ANSI C63.4:2014)
Radiated Spurious Emissions (Transmitters Active)
6 Pass
(ANSI C63.26:2015)
Conducted Emissions
7 Pass
(ANSI C63.4:2014)

Non-Specific EMC Report Shell Rev. December 2017 Page 4 of 31
Report Number: 103714598LEX-006

Evaluation For: eNeura, Inc.
Product: sTMS Mini Transcranial Magnetic Stimulator
EMC Test Report Date: 2/1/2019

3 Client Information

This product was tested at the request of the following:

Client Information
Client Name: eNeura, Inc.
Address: 715 N Pastoria Avenue
Sunnyvale, CA 94085
USA

Contact: Cynthia Merrell
Telephone: (408) 245-6400 x126
Email: cmerell@eneura.com
Manufacturer Information
Manufacturer Name: eNeura, Inc.
Manufacturer Address: 715 N Pastoria Avenue
Sunnyvale, CA 94085
USA

Non-Specific EMC Report Shell Rev. December 2017 Page 5 of 31
Report Number: 103714598LEX-006

Evaluation For: eNeura, Inc.
Product: sTMS Mini Transcranial Magnetic Stimulator
EMC Test Report Date: 2/1/2019

4 Description of Equipment under Test and Variant Models

Equipment Under Test
Product Name sTMS Mini Transcranial Magnetic Stimulator
Model Number sTMS Mini
Serial Number 20001152
Receive Date 11/20/2018
Test Start Date 11/21/2018
Test End Date 12/4/2018
Device Received Condition Good
Test Sample Type Production
Rated Voltage 12VDC
Rated Current 1.25A
Rated Frequency DC
Number of Phases DC
Description of Equipment Under Test (provided by client)
The sTMS Mini Transcranial Magnetic Stimulator is a therapeutic device used in the treatment of
migraine headaches. It applies magnetic stimulation therapy and then transmits data back to the
supervising clinician via an embedded cellular module (Sierra Wireless Model HL7618RD). The data
transmission occurs after the therapy has completed and the device could then be lying in the users lap
or in a purse or bag. The data transmission does not occur whilst the device is being held to the head.

4.1 Variant Models:

There were no variant models covered by this evaluation.

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Report Number: 103714598LEX-006

Evaluation For: eNeura, Inc.
Product: sTMS Mini Transcranial Magnetic Stimulator
EMC Test Report Date: 2/1/2019

5 System Setup and Method

5.1 Method:

Configuration as required by ANSI C63.4:2014 and ANSI C63.26

No. Descriptions of EUT Exercising
1 During the FCC Part 15B testing the transmitters were in idle mode.
2 During the radiated spurious emissions testing the cellular transmitter was outputting on low, mid, or high
channels at maximum output power in either band 4 or band 13.
3 During the conducted emission testing the device was actively charging and the test was performed at the
connection point to the AC mains.

Cables

Qty. Description Length (m) Shielding Ferrites Termination
AC/DC
1 12VDC Cable 2m None Yes Power
Adapter

5.2 EUT Block Diagram:

Radio Base Station Test Sample AC Power Source
DC
Cellular Power
Link

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Report Number: 103714598LEX-006

Evaluation For: eNeura, Inc.
Product: sTMS Mini Transcranial Magnetic Stimulator
EMC Test Report Date: 2/1/2019

6 Radiated Emissions

6.1 Method

Tests are performed in accordance with ANSI C63.4:2014 and ANSI C63.26

TEST SITE: 10m ALSE

Site Designation: 10m Chamber

Measurement Uncertainty

Expanded Uncertainty
Measurement Frequency Range (k=2) Ucispr
Radiated Emissions, 10m 30-1000 MHz 3.9dB 6.3 dB
Radiated Emissions, 3m 30-1000 MHz 4.0dB 6.3 dB
Radiated Emissions, 3m 1-6 GHz 4.7dB 5.2 dB
Radiated Emissions, 3m 6-15 GHz 4.7dB 5.5 dB
Radiated Emissions, 3m 15-18 GHz 4.7dB 5.5 dB
Radiated Emissions, 3m 18-40 GHz 4.7dB 5.5 dB

As shown in the table above our radiated emissions U lab is less than the corresponding U CISPR reference value in
CISPR 16-4-2 Table 1, hence the compliance of the product is only based on the measured value, and no
measurement uncertainty correction is required.

Non-Specific EMC Report Shell Rev. December 2017 Page 11 of 31
Report Number: 103714598LEX-006

Evaluation For: eNeura, Inc.
Product: sTMS Mini Transcranial Magnetic Stimulator
EMC Test Report Date: 2/1/2019

6.2 Sample Calculation

The field strength is calculated by adding the Antenna Factor and Cable Factor, and subtracting the Amplifier Gain
(if any) from the measured reading. The basic equation with a sample calculation is as follows:

FS = RA + AF + CF - AG
Where FS = Field Strength in dBV/m
RA = Receiver Amplitude (including preamplifier) in dBV
CF = Cable Attenuation Factor in dB
AF = Antenna Factor in dB
AG = Amplifier Gain in dB

In the following table(s), the reading shown on the data table reflects the preamplifier gain. An example for the
calculations in the following table is as follows.

Assume a receiver reading of 52.0 dBV is obtained. The antenna factor of 7.4 dB and cable factor of 1.6 dB is
added. The amplifier gain of 29 dB is subtracted, giving a field strength of 32 dBV/m. This value in dBV/m was
converted to its corresponding level in V/m.

RA = 52.0 dBV
AF = 7.4 dB/m
CF = 1.6 dB
AG = 29.0 dB
FS = 32 dBV/m

To convert from dBV to V or mV the following was used:

where UF = Net Reading in V
(NF / 20)
UF = 10
NF = Net Reading in dBV

Example:

FS = RA + AF + CF – AG = 52.0 + 7.4 + 1.6 – 29.0 = 32.0
= 39.8 V/m
(32 dBV / 20)
UF = 10

6.3 Field Strength to Power Calculation
As allowable by ANSI C63.26: 2015 section 5.2.7, the output power of unwanted emissions can be
calculated from a field strength measurement. The transmitter measurements that follow in this report
have applied the following calculation to the -13dBm limit to arrive an equivalent field strength limit at 3
meters as follows:

E (dBμV/m) = EIRP (dBm) − 20log(D) + 104.8; where D is the measurement distance (in the far
field region) in m.

Example:
Limit (dBuV/m) = -13 -20log(3) + 104.8 = 82.25dBuV/m

Non-Specific EMC Report Shell Rev. December 2017 Page 12 of 31
Report Number: 103714598LEX-006

Evaluation For: eNeura, Inc.
Product: sTMS Mini Transcranial Magnetic Stimulator
EMC Test Report Date: 2/1/2019

7 Conducted Emissions

7.1 Method

Tests are performed in accordance with ANSI C63.4:2014.

TEST SITE: Ground Plane

Site Designation: Ground Plane

Measurement Uncertainty

Expanded Uncertainty
Measurement Frequency Range (k=2) Ucispr
AC Line Conducted Emissions 150 kHz - 30 MHz 3.1dB 3.4dB

As shown in the table above our conducted emissions U lab is less than the corresponding U CISPR reference value
in CISPR 16-4-2 Table 1, hence the compliance of the product is only based on the measured value, and no
measurement uncertainty correction is required.

7.2 Sample Calculations

The following is how net line-conducted readings were determined:

NF = RF + LF + CF + AF
Where NF = Net Reading in dBV
RF = Reading from receiver in dBV
LF = LISN or ISN Correction Factor in dB
CF = Cable Correction Factor in dB
AF = Attenuator Loss Factor in dB

To convert from dBV to V or mV the following was used:

where UF = Net Reading in V
(NF / 20)
UF = 10
NF = Net Reading in dBV

Example:

NF = RF + LF + CF + AF = 28.5 + 0.2 + 0.4 + 20.0 = 49.1 dBV
= 285.1 V/m
(49.1 dBV / 20)
UF = 10

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Report Number: 103714598LEX-006

Document Created: 2019-02-01 15:56:12
Document Modified: 2019-02-01 15:56:12

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