FCC Radio Test Report

General Information

This report details the testing conducted by Dongguan Nore Testing Center Co., Ltd. on the device described below to determine its maximum emission levels, endurance, and performance criteria. The tests were performed in accordance with ANSI C63.10(2013) and FCC Part 15.249.

1.1 Product Description for Equipment Under Test

Product Name: Label Printer

Brand Name: MakeID

Main Model Name: ML60R-WT

E.U.T. Type: Class B

Rating: Input: 24Vdc, 2.5A

Adapter: Model: EA10682P-240, Input: 100-240V~, 50/60Hz, 2.0A, Output: 24V 2.5A

Test Voltage: AC 120V/60Hz

Technical Specification (RFID Function):

• Frequency Range: 902.25-927.75MHz
• Modulation Type: ASK
• Number of Channels: 52
• Channel Space: 0.5MHz
• Antenna Type: FPC antenna
• Antenna Gain: 3.0dBi

This report is applicable to the RFID function.

Serial Model List Summary

The product line includes various models that share the same core functionality and FCC ID. The main tested model is ML60R-WT. Other models listed, such as ML60, DS60, DT60, DP60 series, and their variations (e.g., ML60A, ML60B, ML60C, ML60T, ML60S, DS60A, etc., with suffixes indicating features like color or configuration, e.g., -2N, -3N, -2NW, -3NW, -2F, -3F, -2FW, -3FW, -2NR, -3NR, -2NRW, -3NRW, -2FR, -3FR, -2FRW, -3FRW, and color codes like -WT, -GN, -PK, -BU), are considered equivalent for testing purposes, with differences primarily in exterior colors or minor feature variations as noted in the original documentation. All tests were performed on model ML60R-WT.

1.2 Related Submittal(s) / Grant (s)

This test report is intended for FCC ID: 2AVAP-ML60 filing to comply with Section 15.249 of the FCC Part 15, Subpart C Rule.

1.3 Test Methodology

Both AC mains line-conducted and radiated emission measurements were performed according to the procedures in ANSI C63.10 (2013). Radiated emission measurements were conducted in a semi-anechoic chamber, and conducted emission measurements were performed in a shielded room. Preliminary scans were conducted to determine the worst-case modes. All radiated tests were performed at an antenna-to-EUT distance of 3 meters. Other measurements followed 47 CFR Part 2.

1.4 Equipment Modifications

No equipment modifications were made to the EUT for this grant.

1.5 Support Device

A Notebook (Manufacturer: IBM, Model: 1834) with its adapter (Manufacturer: Huntkey, Model: HKA09019047-6D) was used as a support device during testing.

1.6 Test Facility and Location

The testing was performed at Dongguan Nore Testing Center Co., Ltd. (Dongguan NTC Co., Ltd.), located at Building D, Gaosheng Science and Technology Park, Hongtu Road, Nancheng District, Dongguan City, Guangdong Province, China. The facility is accredited by CNAS, A2LA, FCC, and Industry Canada.

1.7 Summary of Test Results

System Test Configuration

2.1 EUT Configuration

The EUT was configured for RF field strength measurements to maximize its emission characteristics in continuous normal application.

2.2 Special Accessories

No special accessories were required for this EUT.

2.3 Description of Test Modes

The EUT was tested in continuous operating mode (duty cycle >98%) using a test program to control its transmitting state. The lowest, middle, and highest channels were tested with ASK modulation. Only the worst-case data is presented in this report.

Test Item: Conducted RF Testing and Radiated Testing

Software: RFID_Reader_GUI_V2.1

Description: Used to set the EUT to different modulation and channel settings.

2.4 EUT Exercise

The EUT was operated in engineering mode to fix the transmit frequency for measurements.

AC Power Line Conducted Emissions Test

Test Requirement: FCC Part 15.207

Frequency Range: 150KHz ~ 30MHz

Detector: RBW 9KHz, VBW 30KHz

Operation Mode: RFID Communication

Test Set-Up Description: The test setup involves connecting the EUT to a Line Impedance Stabilization Network (LISN) to measure conducted emissions on the AC power line. Measurements were performed for both Line and Neutral phases.

Measurement Results: Plots of the conducted emissions for the worst-case scenario (RFID Printing mode) at AC 120V/60Hz are provided. The results indicate compliance with the FCC Part 15.207 limits for both Line and Neutral connections.

20dB Bandwidth

Measurement Procedure: The 20dB bandwidth was measured using a spectrum analyzer connected to the EUT's antenna port. The RBW was set to 1% to 5% of the OBW, and VBW was approximately three times the RBW. The 20dB bandwidth is defined as the spectrum width where power is higher than peak power minus 20dB.

Test Set-Up Description: A low loss RF cable connects the EUT's antenna port to a spectrum analyzer.

Measurement Results:

The measured 20dB bandwidths are within the designated frequency band, meeting the requirement of FCC Rule 15.215(c).

Band Edge

Measurement Procedure: Radiated band edge emissions were measured by placing the EUT at a distance of 3 meters from the receiving antenna. The antenna height was varied from 1m to 4m, and the EUT was rotated 360 degrees to find the maximum emission. The spectrum analyzer was set with RBW=120kHz, VBW=300kHz.

Limit: Emissions radiated outside of the specified frequency bands must be attenuated by at least 50 dB below the level of the fundamental or to the general radiated emission limits in 15.209, whichever is less.

Measurement Results: Plots and data for the lower and upper band edges (902.25MHz and 927.75MHz) are presented for both horizontal and vertical polarizations. The results show that the band edge emissions comply with the specified limits.

Radiated Spurious Emissions

Test Set-Up Description: The test setup involves placing the EUT on a rotating table at specified heights (0.8m or 1.5m) in a semi-anechoic or full anechoic chamber, at a distance of 3 meters from the measurement antenna. The antenna height is varied from 1m to 4m, and the table is rotated 360 degrees to find maximum emissions.

Measurement Procedure: For frequencies below 1GHz, a Quasi-peak measurement was used. For frequencies above 1GHz, Peak and Average measurements were performed. The spectrum analyzer was configured with appropriate bandwidths (e.g., 120 kHz RBW for below 1GHz, 1 MHz RBW for above 1GHz).

Limit: Limits are defined by FCC Part 15.209 and Part 15.205 (restricted bands). For frequencies above 1000MHz, average limits apply, with peak limits not exceeding average limits by more than 20dB.

Measurement Results:

• Emissions below 30MHz were found to be lower than 20dB below the allowable limit and were not recorded.
• Plots and tables for radiated emissions from 30MHz to 1GHz and above 1GHz are provided for the low, middle, and high channels. The results indicate compliance with the FCC limits for spurious emissions and restricted bands.
• For emissions above 1GHz, the peak and average readings were recorded, showing compliance with the limits.

Fundamental Wave Field Strength

Measurement Procedure: The field strength of the fundamental wave was measured at a distance of 3 meters. The EUT was placed on a rotating table, and the antenna height was varied from 1m to 4m. The spectrum analyzer was set with RBW=1MHz, VBW=3MHz.

Limit: For the frequency range 902-928 MHz, the limit is 114 dBuV/m at 3 meters.

Measurement Results: Tables and data for the fundamental wave field strength at the low, middle, and high channels (902.25MHz, 915.25MHz, 927.75MHz) are presented. The measurements for both horizontal and vertical polarizations show compliance with the 114 dBuV/m limit.

Antenna Application

Antenna Requirement: According to FCC Part 15C section 15.203, intentional radiators must be designed to ensure that no antenna other than that furnished by the responsible party is used. Permanently attached antennas or those with unique coupling are permitted, but standard antenna jacks are prohibited.

Measurement Results: The EUT uses an FPC antenna, which is permanently attached and unique. The antenna gain is 3.0 dBi. This design meets the FCC antenna requirement.

Test Equipment List

The following equipment was used for testing: