Nemko Test Report

Product Information

Prepared by: G. Suhanthakumar

Approved by: Frode Sveinsen

This report shall not be reproduced except in full without the written approval of Nemko. Opinions and interpretations expressed within this report are not part of the current accreditation. This report was originally distributed electronically with digital signatures. For more information contact Nemko.

1 INFORMATION

1.1 Test Item

Description of Test Item: The RFID transceiver module is located on PCB 1102, and is controlled by the main microcontroller located on PCB 1101, both located inside the LCU 5350. It will communicate with a RFID card if the RFID card is held right in front of the RFID antenna (1103), that is also located inside the LCU 5350.

Theory of Operation: The RFID transceiver module supports several RFID standards, ISO 14443-A, ISO 14443-B and ISO 15693, working on 13.56MHz. On a higher level it supports MIFARE communication and encryption. The transceiver's oscillator is controlled by a 27.12MHz crystal.

1.2 Test Environment

1.2.1 Normal test condition

Temperature: 20 - 24 °C

Relative humidity: 20 - 50 %

Normal test voltage: 4.5Vdc (Primary batteries 3x 1.5Vdc)

The values are the limit registered during the test period.

1.3 Test Engineer(s)

G. Suhanthakumar

1.4 Test Equipment

See list of test equipment in clause 5.

2 TEST REPORT SUMMARY

2.1 General

All measurements are traceable to national standards. The tests were conducted for the purpose of demonstrating compliance with FCC CFR 47 Part 15, paragraph 15.225 and Industry Canada RSS-210 Issue 9. Tests were performed in accordance with ANSI C63.4-2014 and ANSI C63.10-2013. Radiated tests were made in a semi-anechoic chamber at measuring distances of 3m and 10m. A description of the test facility is on file with the FCC and Industry Canada.

Submission Types: New Submission, Production Unit, Class II Permissive Change, Pre-production Unit, Equipment Code, Family Listing.

Disclaimer: THIS TEST REPORT APPLIES ONLY TO THE ITEM(S) AND CONFIGURATIONS TESTED. Deviations from, additions to, or exclusions from the test specifications are described in "Summary of Test Data". Nemko Group authorizes the above named company to reproduce this report provided it is reproduced in its entirety and for use by the company's employees only. Any reproduction of parts of this report requires approval in writing from Nemko Group. Any use which a third party makes of this report, or any reliance on or decisions to be made based on it, are the responsibility of such third parties. Nemko Group accepts no responsibility for damages suffered by any third party as a result of decisions made or actions based on this report.

2.2 Test Summary

¹ EUT is battery powered.
² Integral loop antenna.
RSS Gen issue 4 covers section 7 & 6.
RSS 210 issue 9 covers section B.6.

2.3 Description of modification for Modification Filing

Not applicable.

2.4 Comments

The output level is set to maximum in the software. The radiated measurements are tested on three axis. Two fully charged primary batteries are used. All ports were populated during spurious emission measurements.

2.5 Family List Rational

Not Applicable.

3 TEST RESULTS

3.1 Occupied Bandwidth

Para. No.: RSS-Gen

Test Performed By: G. Suhanthakumar

Date of Test: 2016-06-30

Test Results: Complies

Measurement Data:

Requirements: For information only.

Spectrum Plot Description: A spectrum analyzer plot shows the occupied bandwidth measurement for the RFID module at 13.56MHz, indicating a 6dB bandwidth of 14.76kHz.

3.2 Fundamental Field Strength

Para. No.: 15.225 (a) / B.6 (a)

Test Performed By: G. Suhanthakumar

Date of Test: 2016-06-27

Test Results: Complies

Measurement data: Maximum field strength

Radiated measurements were performed at 10 m distance. The limit line given in the graph is corrected to 10m distance.

Detachable antenna? No

If detachable, is the antenna connector non-standard? No

Antenna Type: Integral loop antenna

New batteries were used.

Requirements: The maximum field strength within band 13.553 – 13.567MHz at 30 meters shall be ≤ 84.0 dBμV/m (at 10 meters ≤ 103.5 dBμV/m). Additional limits apply for adjacent bands.

Spectrum Plot Description: A spectrum analyzer plot displays the field strength at longitudinal polarization for 13.56MHz. The peak value measured was 41.10 dBμV/m at 10m distance.

3.3 Spurious emissions (radiated)

Para. No.: 15.209 / 15.225 (b,c,d) / B.6(b,c,d)

Test Performed By: G. Suhanthakumar

Date of Test: 2016-06-27

Test Results: Complies

Measurement Data: Radiated Emissions with loop antenna, 9kHz – 30MHz measured at a distance of 10m.

The limit line given in the graph is corrected to 10m distance. The detected frequencies are within the band 9 – 90 kHz, with the emission limit based on an average detector. The maximum was observed in longitudinal polarization. Antenna factor, amplifier gain and cable loss are included in spectrum analyzer “Transducer factor”.

Duty Cycle Correction Factor Calculation:

• RF duty cycle: Calculation according to RF burst Para 15.35 (c)
• Minimum DC Correction factor = -20 x log((124.1 ms) / 374.53ms ) = -10.6 dB
• Maximum Duty Cycle Correction Factor according to Para 15.35 (b): 20 dB

Requirement: The field strength of any emissions appearing outside of the 13.110 – 14.010 MHz band shall not exceed the general radiated emission limits in §15.209.

Spectrum Plot Description (9kHz-30MHz): A spectrum analyzer plot shows radiated emissions from 9kHz to 30MHz. The plot indicates compliance with the general radiated emission limits.

Spectrum Plot Description (30MHz-1000MHz): Spectrum analyzer plots show radiated emissions from 30MHz to 1000MHz for different modes (VP, HP) and frequency ranges (30-200MHz, 200-1000MHz). These plots demonstrate compliance with the relevant emission limits.

Pulse Train Information: Details on pulse train periods and duty cycles during card waiting are provided, with specific duty cycle percentages for different bursts.

3.4 Transmitter Frequency Stability

Para. No.: 15.225(e)/B.6

Test Performed By: G. Suhanthakumar

Date of Test: 2016-06-30

Measurement Data:

Supply voltage: 4.5Vdc (fully charged battery)

Requirement: The frequency tolerance of the carrier signal shall be maintained within ±0.01% (±100%) of the operating frequency over a temperature variation of -20 degrees to +50 degrees C at normal supply voltage.

4 Measurement Uncertainty

Measurement Uncertainty Values:

All uncertainty values are expanded standard uncertainty to give a confidence level of 95%, based on coverage factor k=2.

5 LIST OF TEST EQUIPMENT

To facilitate inclusion on each page of the test equipment used for related tests, each item of test equipment and ancillaries are identified (numbered) by the Test Laboratory.

6 BLOCK DIAGRAM

6.1 System set up for radiated measurements

A block diagram illustrates the system setup for radiated measurements. It shows the '4827610CC1 (EUT)' connected to a 'Battery Pack'. The associated test equipment used includes items numbered 1, 3, 4, 5, and 6 from the test equipment list.

6.2 Test Site Radiated Emission

The test site for radiated emissions is an Anechoic Chamber. The setup includes the EUT placed on a non-conducting support on a turntable, with a height of 0.8 meters. A ground plane is present. An antenna, with a height adjustable between 1 and 4 meters, is positioned relative to the EUT. A Test Receiver is located within a Shielded Room.

Revision History