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4 results for “Amateur Radio”
"I made the recording because Iam an amateur recording engineer and also work for a radio station. At the time, Iwas researching for a religious programme, for the radio and by pure chance and good luck, Iwas in the centre of York at the time the street preacher was there. Iam building up a personal library of 'ambient sounds' to use on various radio shows as 'sound effects'. The recording was taken outside St Helen's Church in St Helen's Square, in the centre of York. There was a fairly large crowd walking about, shopping. It was a Saturday. Some people were standing and listening to the man, some were mocking him, others didn't even notice. It was a sunny day, with a slight wind. St Helen's square is a large 'meeting place' for people with seats, flowers and usually musicians. I live in the centre of York and hear a lot of very interesting sounds there, everything from busking musicians, to many foreign languages, church bells, animals and much more. Ireally liked the recording of the preacher as it is quite clear that he passionately believes what he is saying. He was unaware that Iwas recording him. Iwish Ihad captured his whole sermon. He, and other members of his church visit the centre of York quite often, and preach there. Idon't know the name of his church." [Jools/vedas]19 in Collecting Sounds. Online Sharing of Field Recordings as Cultural Practice
"I made the recording because Iam an amateur recording engineer and also work for a radio station. At the time, Iwas researching for a religious programme, for the radio and by pure chance and good luck, Iwas in the centre of York at the time the street preacher was there. Iam building up a personal library of 'ambient sounds' to use on various radio shows as 'sound effects'. The recording was taken outside St Helen's Church in St Helen's Square, in the centre of York. There was a fairly large crowd walking about, shopping. It was a Saturday. Some people were standing and listening to the man, some were mocking him, others didn't even notice. It was a sunny day, with a slight wind. St Helen's square is a large 'meeting place' for people with seats, flowers and usually musicians. I live in the centre of York and hear a lot of very interesting sounds there, everything from busking musicians, to many foreign languages, church bells, animals and much more. Ireally liked the recording of the preacher as it is quite clear that he passionately believes what he is saying. He was unaware that Iwas recording him. Iwish Ihad captured his whole sermon. He, and other members of his church visit the centre of York quite often, and preach there. Idon't know the name of his church." [Jools/vedas]19
Supporting Information for "First Observations of Large Scale Traveling Ionospheric Disturbances Using Automated Amateur Radio Receiving Networks"
<p><strong>Introduction</strong></p> <p>The supporting information for this paper consists of a movie version of Figure 2 in the main paper, comparing the high frequency (HF) amateur radio observations to differential Global Navigation Satellite System (GNSS) Total Electron Content (TEC) measurements. In this revised version of the repository, the TEC data has been reprocessed such that all GNSS data with elevation angles down to 10 degrees were kept when applying the Savitzky–Golay (SG) filter. After the SG filter was applied, data with elevation angles below 30 degrees were discarded. This was done to remove artifacts observed in the original movies.</p> <p> </p> <p><strong>Movie S1 (20171103 Ham and TEC LSTID.mp4)</strong></p> <p>(Top Panel) Time series showing the TX-RX distance for 14 MHz amateur radio spots in 2 min by 25 km bins from 1200 UT 3 Nov 2017 - 0000 UT 4 Nov 2017. (Bottom Panel) differential Global Navigation Satellite System (GNSS) Total Electron Content (TEC) measurements over the Continental United States corresponding to the times indicated by the moving white vertical line in the top panel.</p> <p> </p> <p><strong>Movie S2 (20171103 Ham and TEC LSTID – With Arrow.mp4)</strong></p> <p>Same as movie S1, but with a fiducial black arrow indicating an estimated LSTID horizontal wavelength of 1681 km and propagation azimuth of 163°.</p>
Amateur Radio Spot Data for "First Observations Linking Large-Scale Traveling Ionospheric Disturbances to Polar Vortex Strength"
<p>This repository contains the raw data amateur radio data used to compute the Large Scale Traveling Ionosphic Disturbance activity presented the<br>Geophysical Research Letters manuscript<br>"First Observations Linking Large-Scale Traveling Ionospheric Disturbances to Polar Vortex Strength".</p> <p>This dataset has monthy *.tar files containing daily bzip2 Comma Separated Value (CSV) files of data from the following amateur radio spotting networks for the time period November 2018 - May 2019:</p> <ol> <li><a href="https://pskreporter.info/" target="_blank" rel="noopener">PSKReporter (https://pskreporter.info/)</a></li> <li><a href="https://www.wsprnet.org/" target="_blank" rel="noopener">Weak Signal Propagation Reporter Network (WSPRNet, https://www.wsprnet.org/)</a></li> <li><a href="https://reversebeacon.net/" target="_blank" rel="noopener">Reverse Beacon Network (https://reversebeacon.net/)</a></li> </ol> <p>Where necessary, spots have been geolocated using latitudes and longitudes from <a href="https://www.qrz.com/">https://www.qrz.com/</a>.</p> <p>We are grateful to the operators of PSKReporter, WSPRNet, and the Reverse Beacon Network for the use of their data.</p> <p>The columns of each CSV file correspond to the following values:</p> <p># [0] UTC Datetime <br># [1] Transmitter Call Sign<br># [2] Transmitter Maidenhead Grid Square<br># [3] Transmitter Geographic Latitude<br># [4] Transmitter Geographic Longitude<br># [5] Source of Transmitter Gride Information<br>#<br># [6] Receiver Maidenhead Grid Square<br># [7] Receiver Geographic Latitude<br># [8] Receiver Geographic Longitude<br># [9] Source of Receiver Gride Information<br>#<br># [11] Frequency (Hz)<br># [12] Signal to Noise Ration (SNR) [dB]<br># [13] Mode<br>#<br># [14] Source<br># [15] Sender Status<br># [16] Inter-Modulation Distortion (IMD)<br># [17] ipOriginID<br># [18] sendeMobileLocator<br># [19] c1<br># [10] c2<br># [21] mode2</p> <p># Computed Fields<br># [22] Great Circle Short Path [km]<br># [23] Great Circle Short Path Midpoint Geographic Latitude<br># [24] Great Circle Short Path Midpoint Geographic Longitude</p> <p>This dataset is designed to be used with the LSTID autodetection software available at <a href="https://doi.org/10.5281/zenodo.13630867" target="_blank" rel="noopener">https://doi.org/10.5281/zenodo.13630867</a>.</p>
Dataset for "First Observations of Large Scale Traveling Ionospheric Disturbances Using Automated Amateur Radio Receiving Networks"
<p># 20171103.rbn_pskreporter_wspr_data.csv<br> #<br> # This data file contains the amateur radio spot data used in the manuscript:<br> # "First Observations of Large Scale Traveling Ionospheric Disturbances Using Automated Amateur Radio Receiving Networks"<br> # by Nathaniel A. Frissell W2NAF, Stephen R. Kaeppler AD0AE, Diego F. Sanchez KD2RLM, Gareth W. Perry KD2SAK,<br> # William D. Engelke AB4EJ, Philip J. Erickson W1PJE, Anthea J. Coster, J. Michael Ruohoniemi, and Joseph B. H. Baker<br> #<br> # Observations are provided courtesy of:<br> # 1. The Weak Signal Propagation Reporting Network (WSPRNet, https://www.wsprnet.org/)<br> # Operated by Bruce Walker W1BW<br> #<br> # 2. The Reverse Beacon Network (RBN, http://www.reversebeacon.net/)<br> # Operated by Nick Sinanis F5VIH/SV3SJ, David Pascoe KM3T, Mark Glenn K7MJG, Peter Smith N4ZR, Felipe Ceglia PY1NB/CT7ANO, and Dick Williams W3OA<br> #<br> # 3. PSKReporter (https://pskreporter.info/)<br> # Operated by Philip Gladstone N1DQ<br> #<br> # Explanation of Data Columns:<br> # freq: Frequency [kHz]<br> # ut: Time of Observation in Universal Time (UT)<br> # source: Observation Network (WSPRNet, RBN, or PSKReporter)<br> # tx_grid: Transmitter Maidenhead Gridsquare<br> # rx_grid: Receiver Maindenhead Gridsquare<br> # tx_lat: Transmitter Latitude (deg)<br> # tx_long: Transmitter Longitude (deg)<br> # rx_lat: Receiver Latitude (deg)<br> # rx_long: Receiver Longitude (deg)<br> # dist_Km: Ground-Level Great Circle Distance between Transmitter and Receiver (km)<br> # md_lat: Midpoint between Transmitter and Receiver Latitude (deg)<br> # md_long: Midpoint between Transmitter and Receiver Longitude (deg)<br> # slt_mid: Solar Local Time of Midpoint (hr)<br> #<br> # This datafile is a subset of the full WSPRNet/RBN/PSKReporter data, filtered with the following parameters:<br> # ut min: 2017-11-03 00:00:00<br> # ut max: 2017-11-03 23:59:59<br> # freq min: 14000.382<br> # freq max: 14280.0<br> # md_lat min: 20.004737453151876<br> # md_lat max: 54.99977112001497<br> # md_long min: -129.99845895196913<br> # md_long max: -60.008771378901315<br> # dist_Km min: 0.0<br> # dist_Km max: 19861.14355003741</p>
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