Radio Frequency Measurements for Selected Manufacturing and Industrial Environments using a PN Code Sounding methodology. The resulting measurements include complex impulse responses and spectrum analysis traces. Complex impulse responses were validated using both ray tracing and an outdoor two-ray reference facility. This data is meant to serve as a reference of how radio waves at 2.4 GHz and 5 GHz propagate in industrial environments.

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.

These data were acquired in the process of collecting data for [1]. They comprise IQ waveform outputs of two different software-defined radios (SDRs) that were collected for various combinations of 1- and 2-tone excitation conditions. For details about how the data were collected, see that publication. [1] McNulty, M., Gu, D., Kuester, D. and Nayeri, P. (2022), "Measurements of IP3 and P1dB for Spectrum Monitoring with Software Defined Radios," Proceedings of the 16th European Conference on Antennas and Propagation, Madrid, ES, [online], https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=934065.

As a National Metrology Institute (NMI), the National Institute of Standards and Technology (NIST) maintains traceable measurement capabilities for a variety of quantities, including microwave power. At NMIs and calibration laboratories, traceable microwave power measurements often rely on the principle of dc substitution. This approach involves a power meter that provides dc power to a sensor under test. DC substitution power meters are typically implemented by analog electronics, making them difficult to maintain. Here, we explore programmable source measure units as an alternative implementation of the power meter. We offer a preliminary uncertainty analysis and describe a method to reduce measurement uncertainty due to the accuracy of the measurement equipment. This is data for the manuscript "Using Commercial Source Measure Units for Traceable RF Power Measurements" for the 2024 ARFTG conference.

This is a collection of data sets acquired for measurements of noise figure and receive system noise of wireless/radio frequency receivers and transceivers. These data include tabular data that list1) Inputs: calibrated input signal and excess noise levels, and2) Outputs: summary statistics for each type of user data collected for each DUT.The experiments that produced these data were meant to be used to assess noise measurands, but the data are generic and could be applied to other problems if desired.The structure of each zip archive dataset is as follows:| Root|-- (Anonymized DUT name 1)|---- Data file 1|---- Data file 2|---- ...Data file N|---- DUT-README.txt|-- (Anonymized DUT name 2)|---- Data file 1|---- Data file 2|---- ...Data file N|---- DUT-README.txt| (etc.)Data tables in each archive are provided as comma-separated values (.csv), and the descriptive text files are ASCII (.txt). Detailed discussion of the test conditions and data formatting is given by the DUT-README.txt for each DUT.

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 TIG welding processes conducted in the NIST fabrication shop. The measurements were taken using a typical arc welding power source and recorded at three distinct frequencies: 900 MHz, 2.4 GHz, and 5.3 GHz. The data collection was performed with a bandwidth of 160 MHz and a sample rate of 625 MHz, providing high-resolution insights into the EMI characteristics during the welding operations. This dataset may be useful for understanding the EMI behavior in TIG welding and can be instrumental in developing interference mitigation strategies, aiding in RF band selection and frequency planning, and improving welding technology and regulations.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.

,1) Właściwości fizyczne pasm 169 MHz, 433 MHz, 868 MHz, 2,4GHz.,2) Opis modulacji stosowanej w transmisji cyfrowej LoRa.,3) Dobór układu nadawczo - odbiorczego.,4) Badanie zasięgu poszczególnych zakresów fal przy tej samej mocy nadawania w otwartej przestrzeni.,5) Badanie podatność na pochłanianie fal w poszczególnych zakresach dla drewna, betonu, żelbetonu, cegły, metalu.,6) Dobór anteny w urządzeniu.,7) Badanie jakości różnych rodzajów anten.,8) Optymalizacja energetyczna.,9) Uzasadnienie wyboru częstotliwości i parametrów modulacji.,10) Wybór chipsetu do modułu radiowego.,11) Dobór najkorzystniejszych parametrów pracy układu SX1276.,12) Opracowanie płytki prototypowej.,13) Testy w warunkach laboratoryjnych.,14) Testy w warunkach rzeczywistych.,15) Wybór chipsetu.,16) Oszacowanie prądów.,17) Opracowanie płytki prototypowej Bezprzewodowej Anteny (BA).,18) Opracowanie płytki prototypowej Bezprzewodowego Koncentratora (BK).,19) Testy w warunkach laboratoryjnych.,20) Testy w warunkach rzeczywistych.,21) Podsumowanie i wnioski.,