Annular Solar Eclipse 2023: recordings of the entire medium-wave AM broadcast band from Phoenix, AZ, USA, Part 1

recorded by Burke Baumann, KF7NP Grid square of location recorded: DM33wp Maximum obscuration of the sun was 79% at 1632UT on 14 October 2023. These data files are recordings of the entire medium wave broadcast band (535-1705kHz) made during the annular solar eclipse of 14 October 2024 from 1501UT to 1755UT at Phoenix, AZ, USA. They are part of a set of such recordings made from 1304 to 2200UT on 14 October and from 1300 to 2200UT on 15 October, 2023. Data Quality: Some broadband local electrical noise was present, plus some spurious carriers, but did not affect overall quality. Data files are .wav format, but the archived files are .zip, with four or five .wav files packaged together in each .zip file, using the prefix "KF7NP-wideband_160_2080kHz". As the total files recorded during the solar eclipse exceeded the Zenodo 50GB limit, the remainder of the dataset is found in "Annular Solar Eclipse 2023: recordings of the entire medium-wave AM broadcast band from Phoenix, AZ, USA, Part 2” The recordings not included here or in Part 2 are available to provide reference data for the eclipse recordings. Please contact HamSCI at [e-mail] if you require this data. Antenna: Hustler 20m mobile vertical with an inline choke balun in the feed line Receiver: Receiver used: ICOM IC-7610 SDR transceiver (16-bit data), 0dB front end gain / attenuation. (Baumann: I also believe the IC-7610 has a low pass filter with a cutoff at 1.6 MHz so signals above this may be attenuated.) Center frequency was 1100kHz, recording a 1920kHz wide passband using HDSDR software. The receiver was locked to a 10 MHz signal from a homebrew GPSDO reference, which was always accurate to better than 0.1 ppb. Computer time accuracy was determined by Dimension 4 NTP.本数据集由KF7NP呼号持有者Burke Baumann录制。 记录地点的Maidenhead网格方格（Grid square）为DM33wp。 2023年10月14日世界时（Universal Time，UT）16时32分，太阳最大遮罩率为79%。 本数据集包含2024年10月14日日环食期间，于美国亚利桑那州凤凰城，从世界时15时01分至17时55分录制的全中波广播频段（535kHz~1705kHz）录音文件。本数据集属于2023年10月14日13时04分至22时00分、10月15日13时00分至22时00分录制的同系列录音之一。 数据质量：存在部分宽带本地电噪声与杂散载波，但未对整体数据质量造成影响。 数据文件格式为.wav，归档文件则为.zip格式，每个.zip压缩包内包含4至5个.wav音频文件，文件前缀为"KF7NP-wideband_160_2080kHz"。由于本次日环食录制的总文件大小超出Zenodo平台50GB的存储限制，数据集剩余部分可在《2023年日环食：美国亚利桑那州凤凰城全中波调幅广播频段录音 第二部分》中获取。 未纳入本数据集与第二部分的录音可作为本次日环食录音的参考数据，若需获取此类数据，请联系HamSCI，邮箱为[e-mail]。 天线：采用Hustler 20米波段移动垂直天线，馈线中内置扼流圈巴伦（choke balun）。 接收设备：使用ICOM IC-7610软件定义无线电（Software Defined Radio，SDR）收发机（16位数据采样），前端增益/衰减设置为0dB。Baumann补充说明：IC-7610内置截止频率为1.6MHz的低通滤波器，高于该频率的信号可能会被衰减。本次录制的中心频率为1100kHz，通过HDSDR软件采集1920kHz带宽的通带信号。接收机采用自制GPS受控振荡器（GPS Disciplined Oscillator，GPSDO）输出的10MHz信号作为参考，频率精度优于0.1ppb（十亿分之一）。计算机时间精度由Dimension 4网络时间协议（Network Time Protocol，NTP）工具校准。