About this Dataset

Radio Frequency Interference Measurements Of Industrial Machinery

The 2.4 GHz ISM band is shared by Wi-Fi, Bluetooth, Wireless HART, ISA100.11a, and several other industrial wireless systems. Our dataset contains comprehensive electromagnetic interference (EMI) measurements from machinery taken in various industrial environments. The measurements were taken at two frequencies: 900 MHz, 2.4 GHz. This dataset may be useful for understanding EMI emitters in factories and can be instrumental in developing interference mitigation strategies, aiding in RF band selection and enterprise frequency planning, improving wireless technology, and informing communications standardization activities such as the IEEE 3388 industrial wireless performance evaluation standard.The interference measurements were taken in the following types of industrial environments:1) Infrared Curing Machine: Curing process using infrared radiation producing EMI across the 2.4 GHz band, 2) Crane with an Unshielded VFD: Overhead gantry crane operating at 900 MHz with an unshielded variable frequency drive (VFD) causing broadband interference, 3) Microwave Dryer: Two independent sets of measurements of a microwave oven baking machines used for a ceramic drying process. Multiple magnetrons are used with a power output of 1100 Watts each, 4) Unidentified Interference: General recording of the 2400 MHz band capturing both wireless network traffic and an unidentified broadband RFI emitter possibly caused by an unshielded VFD.NIST Disclaimer: Certain commercial equipment, instruments, or materials are identified in this publication in order to describe the experimental procedures and data adequately. Such identification is not intended to imply recommendation or endorsement by the National Institute of Standards and Technology, nor is it intended to imply that the materials or equipment identified are necessarily the best available for the purpose.
Organization: National Institute of Standards and Technology
Last updated: 2025-07-09T14:14:35.360275
Tags: 5g, electromagnetic-interference-emi, ieee-802-11, industrial-control, industrial-wireless, radio-frequency-interference-rfi, wi-fi, wireless

Tables

Data/900mhz Signal Generator

@usgov.national_institute_of_standard_radio_frequency_interfe_066e6062.data_900mhz_signal_generator

560.86 KB
1611 rows
257 columns


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Data/Ceramics Microwave Dryer T2

@usgov.national_institute_of_standard_radio_frequency_interfe_066e6062.data_ceramics_microwave_dryer_t2

639.84 KB
1463 rows
287 columns


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);

Data/Gantry Crane 900mhz

@usgov.national_institute_of_standard_radio_frequency_interfe_066e6062.data_gantry_crane_900mhz

291.63 KB
347 rows
257 columns


CREATE TABLE data_gantry_crane_900mhz (
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);

Data/Industrial Microwave Dryers 2.4ghz

@usgov.national_institute_of_standard_radio_frequency_interfe_066e6062.data_industrial_microwave_dryers_2_4ghz

357.56 KB
338 rows
287 columns


CREATE TABLE data_industrial_microwave_dryers_2_4ghz (
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Data/Infrared Curing Machine 2.4ghz

@usgov.national_institute_of_standard_radio_frequency_interfe_066e6062.data_infrared_curing_machine_2_4ghz

341.66 KB
437 rows
287 columns


CREATE TABLE data_infrared_curing_machine_2_4ghz (
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);

Data/Random Machine Interference 2.4ghz

@usgov.national_institute_of_standard_radio_frequency_interfe_066e6062.data_random_machine_interference_2_4ghz

1.14 MB
4568 rows
287 columns


CREATE TABLE data_random_machine_interference_2_4ghz (
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  "n__2420646" DOUBLE,
  "n__2420979" DOUBLE,
  "n__2421312" DOUBLE,
  "n__2421645" DOUBLE,
  "n__2421978" DOUBLE,
  "n__2422311" DOUBLE,
  "n__2422644" DOUBLE,
  "n__2422977" DOUBLE,
  "n__2423310" DOUBLE,
  "n__2423643" DOUBLE,
  "n__2423976" DOUBLE,
  "n__2424309" DOUBLE,
  "n__2424642" DOUBLE,
  "n__2424975" DOUBLE,
  "n__2425308" DOUBLE,
  "n__2425641" DOUBLE,
  "n__2425974" DOUBLE,
  "n__2426307" DOUBLE,
  "n__2426640" DOUBLE,
  "n__2426973" DOUBLE,
  "n__2427306" DOUBLE,
  "n__2427639" DOUBLE,
  "n__2427972" DOUBLE,
  "n__2428305" DOUBLE,
  "n__2428638" DOUBLE,
  "n__2428971" DOUBLE,
  "n__2429304" DOUBLE,
  "n__2429637" DOUBLE,
  "n__2429970" DOUBLE,
  "n__2430303" DOUBLE,
  "n__2430636" DOUBLE,
  "n__2430969" DOUBLE,
  "n__2431302" DOUBLE,
  "n__2431635" DOUBLE,
  "n__2431968" DOUBLE,
  "n__2432301" DOUBLE,
  "n__2432634" DOUBLE
);

Regions/Crane With An Unshielded VFD - Allregs

@usgov.national_institute_of_standard_radio_frequency_interfe_066e6062.regions_crane_with_an_unshielded_vfd_allregs

7.43 KB
476 rows
4 columns


CREATE TABLE regions_crane_with_an_unshielded_vfd_allregs (
  "start_freq_mhz" DOUBLE,
  "n__start_time_s" DOUBLE,
  "n__duration" DOUBLE,
  "n__bandwidth_mhz" DOUBLE
);

Regions/Crane With An Unshielded VFD - Lgregs

@usgov.national_institute_of_standard_radio_frequency_interfe_066e6062.regions_crane_with_an_unshielded_vfd_lgregs

4.05 KB
10 rows
4 columns


CREATE TABLE regions_crane_with_an_unshielded_vfd_lgregs (
  "start_time_s" DOUBLE,
  "n__start_freq_mhz" DOUBLE,
  "n__duration" DOUBLE,
  "n__bandwidth_mhz" DOUBLE
);

Regions/Infrared Curing Machine - Allregs

@usgov.national_institute_of_standard_radio_frequency_interfe_066e6062.regions_infrared_curing_machine_allregs

8.6 KB
623 rows
4 columns


CREATE TABLE regions_infrared_curing_machine_allregs (
  "start_freq_mhz" DOUBLE,
  "n__start_time_s" DOUBLE,
  "n__duration" DOUBLE,
  "n__bandwidth_mhz" DOUBLE
);

Regions/Infrared Curing Machine - Lgregs

@usgov.national_institute_of_standard_radio_frequency_interfe_066e6062.regions_infrared_curing_machine_lgregs

3.8 KB
1 row
4 columns


CREATE TABLE regions_infrared_curing_machine_lgregs (
  "start_time_s" BIGINT,
  "n__start_freq_mhz" BIGINT,
  "n__duration" DOUBLE,
  "n__bandwidth_mhz" DOUBLE
);

Regions/Microwave Dryer Take 1 - Allregs

@usgov.national_institute_of_standard_radio_frequency_interfe_066e6062.regions_microwave_dryer_take_1_allregs

12.02 KB
1737 rows
4 columns


CREATE TABLE regions_microwave_dryer_take_1_allregs (
  "start_freq_mhz" DOUBLE,
  "n__start_time_s" DOUBLE,
  "n__duration" DOUBLE,
  "n__bandwidth_mhz" DOUBLE
);

Regions/Microwave Dryer Take 1 - Lgregs

@usgov.national_institute_of_standard_radio_frequency_interfe_066e6062.regions_microwave_dryer_take_1_lgregs

3.82 KB
2 rows
4 columns


CREATE TABLE regions_microwave_dryer_take_1_lgregs (
  "start_time_s" DOUBLE,
  "n__start_freq_mhz" DOUBLE,
  "n__duration" DOUBLE,
  "n__bandwidth_mhz" DOUBLE
);

Regions/Microwave Dryer Take 2 - Allregs

@usgov.national_institute_of_standard_radio_frequency_interfe_066e6062.regions_microwave_dryer_take_2_allregs

26.18 KB
5172 rows
4 columns


CREATE TABLE regions_microwave_dryer_take_2_allregs (
  "start_freq_mhz" DOUBLE,
  "n__start_time_s" DOUBLE,
  "n__duration" DOUBLE,
  "n__bandwidth_mhz" DOUBLE
);

Regions/Microwave Dryer Take 2 - Lgregs

@usgov.national_institute_of_standard_radio_frequency_interfe_066e6062.regions_microwave_dryer_take_2_lgregs

4.47 KB
38 rows
4 columns


CREATE TABLE regions_microwave_dryer_take_2_lgregs (
  "start_time_s" DOUBLE,
  "n__start_freq_mhz" DOUBLE,
  "n__duration" DOUBLE,
  "n__bandwidth_mhz" DOUBLE
);

Regions/Unidentified Interference - Allregs

@usgov.national_institute_of_standard_radio_frequency_interfe_066e6062.regions_unidentified_interference_allregs

142.36 KB
38893 rows
4 columns


CREATE TABLE regions_unidentified_interference_allregs (
  "start_freq_mhz" DOUBLE,
  "n__start_time_s" DOUBLE,
  "n__duration" DOUBLE,
  "n__bandwidth_mhz" DOUBLE
);

Regions/Unidentified Interference - Lgregs

@usgov.national_institute_of_standard_radio_frequency_interfe_066e6062.regions_unidentified_interference_lgregs

13.15 KB
725 rows
4 columns


CREATE TABLE regions_unidentified_interference_lgregs (
  "start_time_s" DOUBLE,
  "n__start_freq_mhz" DOUBLE,
  "n__duration" DOUBLE,
  "n__bandwidth_mhz" DOUBLE
);