DOI: 10.21227/w02t-5x57
title: CRAWDAD up/rf_recordings

description: In order to be used for examples or projects in communication systems or digital signal processing courses, the radio frequency (RF) signal was recorded from several commercial communication systems and stored in a database. This database contains recordings of radio frequency (RF) signals from several commercial communication systems including AM and FM radio, high definition AM and FM radio, analog and digital TV, Bluetooth, WiFi, GPS, WWV time signal, garage door opener, remote control for toy cars, wireless thermometers, and a wireless serial cable replacement system.last modified : 2008-07-23release date : 2008-07-23date/time of measurement start : 2005-05-16date/time of measurement end : 2005-09-14collection environment : When teaching communication systems, it would be very useful to have access to real signals to illustrate various concepts. For example, when teaching the concept of frequency division multiplexing (assigning different signals to different frequencies), it would make this concept very clear to have a recording of the entire AM radio band, so the students could see that in order to tune in a particular station, the receiver must isolate one of the stations and demodulate it. When teaching frequency hopping systems, it would be interesting to examine the signal from a frequency hopping system such as Bluetooth to witness the signal jumping from one frequency to another. In teaching software-defined radio, it would be interesting to test receivers with real RF signals instead of simulated ones. There are advantages in having the students work with real signals in laboratory courses. But for those students witho ut access to the expensive test equipment or the time to set up the experiments, a database may be the only way to get access to a wide variety of RF signals. The RF signals in the database described in this data set can be used for examples, projects, and homework assignments in a communication systems course to strengthen the link between the concepts and real systems.network configuration : This RF database contains recordings of radio frequency (RF) signals from several commercial communication systems including AM and FM radio, high definition AM and FM radio, analog and digital TV, Bluetooth, WiFi, GPS, WWV time signal, garage door opener, remote control for toy cars, wireless thermometers, and a wireless serial cable replacement system.data collection methodology : The recordings, which were made with a Tektronix RSA3408A Real Time Spectrum Analyzer, can be used to illustrate several important concepts such as various modulation methods, frequency division multiplexing, frequency hopping, direct sequence spread spectrum, and noise.Tracesetup/rf_recordings/rf_signalsTrace set of RF recordings of several communication signals captured by a real time spectrum analyzer.description: This trace set contains recordings of radio frequency (RF) signals from several commercial communication systems including AM and FM radio, high definition AM and FM radio, analog and digital TV, Bluetooth, WiFi, GPS, WWV time signal, garage door opener, remote control for toy cars, wireless thermometers, and a wireless serial cable replacement system.measurement purpose: Educational Usemethodology: - Experimental Setup Most of the RF signals in the database were recorded using the setup shown in [Figure: Experimental Setup for Most of the Database Recordings] consisting of a Tektronix RSA3408A Real Time Spectrum Analyzer and an AOR SA7000 Wideband Antenna (30 KHz - 2 GHz). The Tektronix RSA3408A Real Time Spectrum Analyzer captures the inphase component x(n) and quadrature component y(n) of the complex envelope of the signal as shown in [Figure: Down-Converter in the RSA3408A Real Time Spectrum Analyzer]. The value of the center frequency w_c in [Figure: Down-Converter in the RSA3408A Real Time Spectrum Analyzer] is determined by the center frequency setting of the spectrum analyzer. The decimate operations reduce the amount of data required to represent the signal. The spectrum analyzer stores the inphase and quadrature components as binary files (filename.iqt). The signals can be moved from the spectrum analyzer to a PC using either a USB drive or a computer network. The binary files were converted to text files using a free program from Tektronix called IQTRead, which also corrects for variations in the IF filter response. The resulting files, which are stored in the database, are comma separated value text files (filename.csv) where the first column represents the inphase component x(n), and the second column represents the quadrature component y(n). An example of this format is shown as follows: -0.00110801991035873,-0.00191097592353516 -0.0013188563394699,-0.00225190291528938 -0.00117979401388594,-0.00242685229263694 -0.000852324666543067,-0.00213526999705767 ... A parameter text file (filename.txt) was also created for each recording to document the parameters of the recording such as sampling fr equency, center frequency, etc. The first few lines of a parameter text file are shown as follows: Sampling Frequency (Hz): 64000 Center Frequency (Hz): 1.19e+006 Span (Hz): 50000 ... If desired, the original bandpass signal can be reconstructed from the inphase and quadrature components as shown in [Reconstructing the Bandpass Signal from the Quadrature Components], but usually the complex envelope is processed directly because its data rate is lower.up/rf_recordings/rf_signals TracesAM_Radio: Trace of RF recordings of analog signals from AM radio stations.configuration: Some AM radio stations were recorded as examples of existing analog systems that are easy to demodulate. This trace includes analog signals from those AM radio stations. The configuration of each recording (the recording name also used as filename) is as follows: - AM_Radio_1 Sampling Frequency (Hz): 25600 Center Frequency (Hz): 910000 Span (Hz): 20000 Length of Recording (Number of Samples): 255488 Length of Recording (Seconds): 9.98 Filename of Original Binary .iqt File: AM_Radio_1.iqt Filename of .csv Text File: AM_Radio_1.csv Date and Time of Recording: 2005/05/18@14:03:22 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: AM910 KISN - AM_Radio_2 Sampling Frequency (Hz): 25600 Center Frequency (Hz): 910000 Span (Hz): 20000 Length of Recording (Number of Samples): 255488 Length of Recording (Seconds): 9.98 Filename of Original Binary .iqt File: AM_Radio_2.iqt Filename of .csv Text File: AM_Radio_2.csv Date and Time of Recording: 2005/05/18@14:06:01 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: AM910 KISNformat:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.AM_Radio_HD: Trace of RF recordings of high definition (HD) radio signals.configuration: Some AM radio stations were recorded as examples of existing analog systems that are easy to demodulate. This trace includes high definition (HD) radio signals from those AM radio stations. The configuration of each recording (the recording name also used as filename) is as follows: - AM_Radio_HD_1 Sampling Frequency (Hz): 64000 Center Frequency (Hz): 1.19e+006 Span (Hz): 50000 Length of Recording (Number of Samples): 639488 Length of Recording (Seconds): 9.992 Filename of Original Binary .iqt File: AM_Radio_HD_1.iqt Filename of .csv Text File: AM_Radio_HD_1.csv Date and Time of Recording: 2005/05/27@13:46:06 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: This station, AM1190 KEX, transmits "High Definition" digital information along with the analog signal. - AM_Radio_HD_2 Sampling Frequency (Hz): 64000 Center Frequency (Hz): 1.19e+006 Span (Hz): 50000 Length of Recording (Number of Samples): 639488 Length of Recording (Seconds): 9.992 Filename of Original Binary .iqt File: AM_Radio_HD_2.iqt Filename of .csv Text File: AM_Radio_HD_2.csv Date and Time of Recording: 2005/05/27@13:49:03 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: This station, AM1190 KEX, transmits "High Definition" digital information along with the analog signal.format:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.AM_Radio_Whole_Band: Trace of RF recordings of whole band signals from AM radio stations.configuration: The configuration of each recording (the recording name also used as filename) is as follows: - AM_Radio_Whole_Band Sampling Frequency (Hz): 1.28e+006 Center Frequency (Hz): 1.1e+006 Span (Hz): 1e+006 Length of Recording (Number of Samples): 12799488 Length of Recording (Seconds): 9.9996 Filename of Original Binary .iqt File: AM_Radio_Whole_Band.iqt Filename of .csv Text File: AM_Radio_Whole_Band.csv Date and Time of Recording: 2005/05/27@13:29:42 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: This recording covers almost the entire AM radio band and includes the following stations in the Portland, Oregon region: Freq (KHz) Call Sign Format ---------- --------- ------ 620 KPOJ talk 750 KXL news, talk 800 KPDQ Christian talk 860 KPAM local news/talk 910 KISN oldies 970 KCMD comedy 1010 KZNY Mexican oldies 1040 KLVP contemporary Christian 1080 KFXX sports 1150 KXMG Spanish contemporary 1190* KEX news, information 1290 KKSL religious 1330 KKPZ Christian talk 1360 KUIK news, talk, sports 1410 KBNP business news 1450 KBPS public 1480 KBMS urban contemporary 1520 KGDD Spanish regional 1550 KKAD adult standards 1640 KDZR kids * transmits digital "high definition" info along with the analog signalformat:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.Bluetooth: Trace of RF recordings of Bluetooth.configuration: The configuration of each recording (the recording name also used as filename) is as follows: - Bluetooth_1 Sampling Frequency (Hz): 5.12e+007 Center Frequency (Hz): 2.4415e+009 Span (Hz): 3.6e+007 Length of Recording (Number of Samples): 511488 Length of Recording (Seconds): 0.00999 Filename of Original Binary .iqt File: Bluetooth_1.iqt Filename of .csv Text File: Bluetooth_1.csv Date and Time of Recording: 2005/05/16@16:21:52 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antennaformat:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.FM_Radio: Trace of RF recordings of analog signals from FM radio stations.configuration: The configuration of each recording (the recording name also used as filename) is as follows: - FM_Radio_1 Sampling Frequency (Hz): 256000 Center Frequency (Hz): 1.075e+008 Span (Hz): 200000 Length of Recording (Number of Samples): 2559488 Length of Recording (Seconds): 9.998 Filename of Original Binary .iqt File: FM_Radio_1.iqt Filename of .csv Text File: FM_Radio_1.csv Date and Time of Recording: 2005/05/18@15:59:36 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: FM107.5 KVMX - FM_Radio_1 Sampling Frequency (Hz): 256000 Center Frequency (Hz): 9.47e+007 Span (Hz): 200000 Length of Recording (Number of Samples): 2559488 Length of Recording (Seconds): 9.998 Filename of Original Binary .iqt File: FM_Radio_2.iqt Filename of .csv Text File: FM_Radio_2.csv Date and Time of Recording: 2005/05/18@15:15:54 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: FM94.7 KNRKformat:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.FM_Radio_100_102_Band: Trace of RF recordings of 100-102 MHz in the FM radio.configuration: The configuration of each recording (the recording name also used as filename) is as follows: - FM_Radio_100_102_Band Sampling Frequency (Hz): 2.56e+006 Center Frequency (Hz): 1.01e+008 Span (Hz): 2e+006 Length of Recording (Number of Samples): 16383488 Length of Recording (Seconds): 6.3998 Filename of Original Binary .iqt File: FM_Radio_100_102_Band.iqt Filename of .csv Text File: FM_Radio_100_102_Band.csv Date and Time of Recording: 2005/05/19@10:16:05 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: This recording covers the range 100-102 MHz in the FM radio band and includes the following stations in the Portland, Oregon region: Freq (MHz) Call Sign Format ---------- --------- ------ 100.3* KKRZ contemporary hits 101.1 KUFO album rock 'n' roll 101.9 KINK adult rock * transmits digital "high definition" info along with the analog signalformat:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.FM_Radio_HD: Trace of RF recordings of "High Definition" digital information transmitted along with the analog signal from an FM radio station.configuration: The configuration of each recording (the recording name also used as filename) is as follows: - FM_Radio_HD_1 ampling Frequency (Hz): 640000 Center Frequency (Hz): 9.47e+007 Span (Hz): 500000 Length of Recording (Number of Samples): 6399488 Length of Recording (Seconds): 9.9992 Filename of Original Binary .iqt File: FM_Radio_HD_1.iqt Filename of .csv Text File: FM_Radio_HD_1.csv Date and Time of Recording: 2005/05/20@11:01:25 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: This station, FM94.7 KNRK, transmits "High Definition" digital information along with the analog signal. - FM_Radio_HD_2 ampling Frequency (Hz): 640000 Center Frequency (Hz): 9.47e+007 Span (Hz): 500000 Length of Recording (Number of Samples): 6399488 Length of Recording (Seconds): 9.9992 Filename of Original Binary .iqt File: FM_Radio_HD_2.iqt Filename of .csv Text File: FM_Radio_HD_2.csv Date and Time of Recording: 2005/05/20@10:57:16 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: This station, FM94.7 KNRK, transmits "High Definition" digital information along with the analog signal.format:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.GPS: Trace of RF recordings of GPS signals.configuration: The configuration of each recording (the recording name also used as filename) is as follows: - GPS_1 Sampling Frequency (Hz): 6.4e+006 Center Frequency (Hz): 1.57542e+009 Span (Hz): 5e+006 Length of Recording (Number of Samples): 320000 Length of Recording (Seconds): 0.05 Filename of Original Binary .iqt File: GPS_1.iqt Filename of .csv Text File: GPS_1.csv Date and Time of Recording: 2005/09/14@17:29:29 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer,Rojone A-GPSA95NS antenna, Rojone AMA-061B amplifier, and a DC block - GPS_2 ampling Frequency (Hz): 6.4e+006 Center Frequency (Hz): 1.57542e+009 Span (Hz): 5e+006 Length of Recording (Number of Samples): 16383488 Length of Recording (Seconds): 2.55992 Filename of Original Binary .iqt File: GPS_2.iqt Filename of .csv Text File: GPS_2.csv Date and Time of Recording: 2005/09/14@17:32:58 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer,Rojone A-GPSA95NS antenna, Rojone AMA-061B amplifier, and a DC blockformat:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.Garage_Door_Opener: Trace of RF recordings of signals from a garage door opener.configuration: The configuration of each recording (the recording name also used as filename) is as follows: - Garage_Door_Opener_1 Sampling Frequency (Hz): 256000 Center Frequency (Hz): 3.8941e+008 Span (Hz): 200000 Length of Recording (Number of Samples): 255488 Length of Recording (Seconds): 0.998 Filename of Original Binary .iqt File: Garage_Door_Opener_1.iqt Filename of .csv Text File: Garage_Door_Opener_1.csv Date and Time of Recording: 2005/05/16@15:31:04 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: Garage Door Opener with Keypad Sears Model Number 139.53867 Buttons 1, 2, 3, and 4 were pressed. - Garage_Door_Opener_2 ampling Frequency (Hz): 256000 Center Frequency (Hz): 3.8941e+008 Span (Hz): 200000 Length of Recording (Number of Samples): 255488 Length of Recording (Seconds): 0.998 Filename of Original Binary .iqt File: Garage_Door_Opener_2.iqt Filename of .csv Text File: Garage_Door_Opener_2.csv Date and Time of Recording: 2005/05/16@15:32:11 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: Garage Door Opener with Keypad Sears Model Number 139.53867 Buttons 5, 6, and 7 were pressed. - Garage_Door_Opener_3 Sampling Frequency (Hz): 256000 Center Frequency (Hz): 3.8941e+008 Span (Hz): 200000 Length of Recording (Number of Samples): 255488 Length of Recording (Seconds): 0.998 Filename of Original Binary .iqt File: Garage_Door_Opener_3.iqt Filename of .csv Text File: Garage_Door_Opener_3.csv Date and Time of Recording: 2005/05/16@15:33:05 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: Garage Door Opener with Keypad Sears Model Number 139.53867 Buttons 9, 0, 9, and 0 were pressed.format:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.Sinewave_1010kHz: Trace of RF recordings of a 1010 kHz (1.01 MHz) sinewave.configuration: The configuration of each recording (the recording name also used as filename) is as follows: - Sinewave_1010kHz Sampling Frequency (Hz): 1.28e+006 Center Frequency (Hz): 1.1e+006 Span (Hz): 1e+006 Length of Recording (Number of Samples): 255488 Length of Recording (Seconds): 0.1996 Filename of Original Binary .iqt File: Sinewave_1010kHz.iqt Filename of .csv Text File: Sinewave_1010kHz.csv Date and Time of Recording: 2006/05/19@9:21:18 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and Tektronix AFG2020 Arbitrary Function Generator Notes: This signal is a 1010 kHz (1.01 MHz) sinewave with and amplitude of 1.0 Volt peak (2.0 V peak-to-peak)format:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.TV_Analog: Trace of RF recordings of signals from analog TV stations.configuration: The configuration of each recording (the recording name also used as filename) is as follows: - TV_Analog_1 ampling Frequency (Hz): 1.28e+007 Center Frequency (Hz): 1.95e+008 Span (Hz): 1e+007 Length of Recording (Number of Samples): 448000 Length of Recording (Seconds): 0.035 Filename of Original Binary .iqt File: TV_Analog_1.iqt Filename of .csv Text File: TV_Analog_1.csv Date and Time of Recording: 2005/05/19@10:53:56 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: Analog TV station KOPB Channel 10 - TV_Analog_2 ampling Frequency (Hz): 1.28e+007 Center Frequency (Hz): 7.9e+007 Span (Hz): 1e+007 Length of Recording (Number of Samples): 448000 Length of Recording (Seconds): 0.035 Filename of Original Binary .iqt File: TV_Analog_2.iqt Filename of .csv Text File: TV_Analog_2.csv Date and Time of Recording: 2005/05/19@10:56:55 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: Analog TV station KWBP Channel 32 - TV_Analog_3 Sampling Frequency (Hz): 1.28e+007 Center Frequency (Hz): 5.7e+007 Span (Hz): 1e+007 Length of Recording (Number of Samples): 448000 Length of Recording (Seconds): 0.035 Filename of Original Binary .iqt File: TV_Analog_3.iqt Filename of .csv Text File: TV_Analog_3.csv Date and Time of Recording: 2005/05/19@10:55:05 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: Analog TV station KATU Channel 2format:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.TV_Digital: Trace of RF recordings of signals from digital TV stations.configuration: The configuration of each recording (the recording name also used as filename) is as follows: - TV_Digital_1 Sampling Frequency (Hz): 1.28e+007 Center Frequency (Hz): 6.29e+008 Span (Hz): 1e+007 Length of Recording (Number of Samples): 511488 Length of Recording (Seconds): 0.03996 Filename of Original Binary .iqt File: TV_Digital_1.iqt Filename of .csv Text File: TV_Digital_1.csv Date and Time of Recording: 2005/05/20@11:31:06 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: Digital TV station KOIN Digital Channel 6, RF Channel 40 - TV_Digital_2 ampling Frequency (Hz): 1.28e+007 Center Frequency (Hz): 5.51e+008 Span (Hz): 1e+007 Length of Recording (Number of Samples): 511488 Length of Recording (Seconds): 0.03996 Filename of Original Binary .iqt File: TV_Digital_2.iqt Filename of .csv Text File: TV_Digital_2.csv Date and Time of Recording: 2005/05/20@11:37:10 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: Digital TV station KOPB Digital Channel 10, RF Channel 27 - TV_Digital_3 ampling Frequency (Hz): 1.28e+007 Center Frequency (Hz): 6.65e+008 Span (Hz): 1e+007 Length of Recording (Number of Samples): 511488 Length of Recording (Seconds): 0.03996 Filename of Original Binary .iqt File: TV_Digital_3.iqt Filename of .csv Text File: TV_Digital_3.csv Date and Time of Recording: 2005/05/20@11:34:10 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: Digital TV station KGW Digital Channel 8, RF Channel 46format:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.Time_Signal: Trace of RF recordings of signals from NIST radio station WWV.configuration: This trace includes signals from NIST radio station WWV which broadcasts accurate time and frequency signals. The configuration of each recording (the recording name also used as filename) is as follows: - Time_Signal_1 Sampling Frequency (Hz): 12800 Center Frequency (Hz): 1e+007 Span (Hz): 10000 Length of Recording (Number of Samples): 895488 Length of Recording (Seconds): 69.96 Filename of Original Binary .iqt File: Time_Signal_1.iqt Filename of .csv Text File: Time_Signal_1.csv Date and Time of Recording: 2005/06/09@10:40:59 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer, 10 MHz Bandpass Filter, and AOR SA7000 Wideband Antenna Notes: WWV 10 MHz Time Signal (see http://tf.nist.gov/timefreq/stations/wwv.html) - Time_Signal_2 Sampling Frequency (Hz): 12800 Center Frequency (Hz): 1e+007 Span (Hz): 10000 Length of Recording (Number of Samples): 895488 Length of Recording (Seconds): 69.96 Filename of Original Binary .iqt File: Time_Signal_2.iqt Filename of .csv Text File: Time_Signal_2.csv Date and Time of Recording: 2005/06/09@11:14:59 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer, 10 MHz Bandpass Filter, and AOR SA7000 Wideband Antenna Notes: WWV 10 MHz Time Signal (see http://tf.nist.gov/timefreq/stations/wwv.html) - Time_Signal_3 Sampling Frequency (Hz): 12800 Center Frequency (Hz): 1e+007 Span (Hz): 10000 Length of Recording (Number of Samples): 895488 Length of Recording (Seconds): 69.96 Filename of Original Binary .iqt File: Time_Signal_3.iqt Filename of .csv Text File: Time_Signal_3.csv Date and Time of Recording: 2005/06/09@11:30:59 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer, 10 MHz Bandpass Filter, and AOR SA7000 Wideband Antenna Notes: WWV 10 MHz Time Signal (see http://tf.nist.gov/timefreq/stations/wwv.html)format:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.WiFi: Trace of RF recordings of WiFi signals.configuration: The configuration of each recording (the recording name also used as filename) is as follows: - WiFi_1 Sampling Frequency (Hz): 5.12e+007 Center Frequency (Hz): 2.4415e+009 Span (Hz): 3.6e+007 Length of Recording (Number of Samples): 1279488 Length of Recording (Seconds): 0.02499 Filename of Original Binary .iqt File: WiFi_1.iqt Filename of .csv Text File: WiFi_1.csv Date and Time of Recording: 2005/05/16@14:14:47 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antennaformat:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.Wireless_remote_control: Trace of RF recordings of signals from Wireless Remote Control.configuration: The configuration of each recording (the recording name also used as filename) is as follows: - Wireless_remote_control_1 Sampling Frequency (Hz): 128000 Center Frequency (Hz): 3.09753e+008 Span (Hz): 100000 Length of Recording (Number of Samples): 255488 Length of Recording (Seconds): 1.996 Filename of Original Binary .iqt File: Wireless_remote_control_1.iqt Filename of .csv Text File: Wireless_remote_control_1.csv Date and Time of Recording: 2005/05/23@13:48:35 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: X10 MP3 Wireless Remote Control, Stop button - Wireless_remote_control_2 ampling Frequency (Hz): 128000 Center Frequency (Hz): 3.09753e+008 Span (Hz): 100000 Length of Recording (Number of Samples): 255488 Length of Recording (Seconds): 1.996 Filename of Original Binary .iqt File: Wireless_remote_control_2.iqt Filename of .csv Text File: Wireless_remote_control_2.csv Date and Time of Recording: 2005/05/23@13:51:02 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: X10 MP3 Wireless Remote Control, Play button - Wireless_remote_control_3 Sampling Frequency (Hz): 128000 Center Frequency (Hz): 3.09753e+008 Span (Hz): 100000 Length of Recording (Number of Samples): 255488 Length of Recording (Seconds): 1.996 Filename of Original Binary .iqt File: Wireless_remote_control_3.iqt Filename of .csv Text File: Wireless_remote_control_3.csv Date and Time of Recording: 2005/05/23@13:58:45 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: X10 MP3 Wireless Remote Control, Pause buttonformat:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.Wireless_thermometer: Trace of RF recordings of signals from Wireless Thermometer.configuration: The configuration of each recording (the recording name also used as filename) is as follows: - Wireless_thermometer_1 ampling Frequency (Hz): 25600 Center Frequency (Hz): 4.3392e+008 Span (Hz): 20000 Length of Recording (Number of Samples): 25088 Length of Recording (Seconds): 0.98 Filename of Original Binary .iqt File: Wireless_thermometer_1.iqt Filename of .csv Text File: Wireless_thermometer_1.csv Date and Time of Recording: 2005/05/23@10:06:08 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: Oregon Scientific Wireless Thermometer: 75.0 degress, 42% humidity - Wireless_thermometer_2 Sampling Frequency (Hz): 25600 Center Frequency (Hz): 4.3392e+008 Span (Hz): 20000 Length of Recording (Number of Samples): 25088 Length of Recording (Seconds): 0.98 Filename of Original Binary .iqt File: Wireless_thermometer_2.iqt Filename of .csv Text File: Wireless_thermometer_2.csv Date and Time of Recording: 2005/05/23@10:08:05 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: Oregon Scientific Wireless Thermometer: 76.3 degress, 41% humidity - Wireless_thermometer_3 Sampling Frequency (Hz): 25600 Center Frequency (Hz): 4.3395e+008 Span (Hz): 20000 Length of Recording (Number of Samples): 25088 Length of Recording (Seconds): 0.98 Filename of Original Binary .iqt File: Wireless_thermometer_3.iqt Filename of .csv Text File: Wireless_thermometer_3.csv Date and Time of Recording: 2005/05/23@12:39:27 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: Radio Shack Wireless Thermometer Catalog Number 63-1026: 72.7 degress - Wireless_thermometer_3 Sampling Frequency (Hz): 25600 Center Frequency (Hz): 4.3395e+008 Span (Hz): 20000 Length of Recording (Number of Samples): 25088 Length of Recording (Seconds): 0.98 Filename of Original Binary .iqt File: Wireless_thermometer_4.iqt Filename of .csv Text File: Wireless_thermometer_4.csv Date and Time of Recording: 2005/05/23@12:43:27 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: Radio Shack Wireless Thermometer Catalog Number 63-1026: 79.2 degressformat:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.wireless_serial_port: Trace of RF recordings of signals from 900MHz 9600 baud wireless serial port.configuration: The configuration of each recording (the recording name also used as filename) is as follows: Sampling Frequency (Hz): 1.28e+007 Center Frequency (Hz): 9.14e+008 Span (Hz): 1e+007 Length of Recording (Number of Samples): 6399488 Length of Recording (Seconds): 0.49996 Filename of Original Binary .iqt File: wireless_serial_port.iqt Filename of .csv Text File: wireless_serial_port.csv Date and Time of Recording: 2005/09/09@16:00:03 Recorded by: Joseph P. Hoffbeck (hoffbeck@up.edu) and Andrew Melton, Univeristy of Portland Experimental Setup: Tektronix RSA3408A Real-Time Spectrum Analyzer and AOR SA7000 Wideband Antenna Notes: This is a recording of a transmission from a MaxStream 9xStream 900MHz 9600 baud Wireless OEM Module. It uses frequency hopping on frequencies from 902 - 928 MHz. The serial data throughput is 9600 bps and the RF Baud Rate is 10000 bps. The data being sent in this transmission is "The secret word is MaxStream"format:The folder RF_Recordings contains the recordings in two different formats. TheRSA3408A Real Time Spectrum Analyzer stores data in a compact binary format(filename.iqt). The recordings are also distributed in comma separated value text files(filename.csv), which is an ASCII format that can be read by many different softwarepackages. (The .csv files are much larger than the .iqt files.)Each recording also has a parameter text file (filename.txt) that documentsthe parameters of the recording such as sampling frequency, center frequency, etc.The same folder contains the MATLAB program iqtread.m, which can be used to loadthe .iqt files, which is much faster than loading the .csv files.