Radio research has been marked in the last few decades by its expansion to cover different communities, experiences, dig deeper into the past, and use increasingly innovation research methods or techniques. The diverse, original, peer-reviewed research in this issue demonstrates the expansion of the field and the fact that radio touches on so many aspects of society and the media. This issue features articles that represent communities within communities and many around the world. In “New Arenas or More of the Same? Public and Commercial Radio Stations on Facebook” Nili Steinfeld and Tal Laor explore the tendency for Israeli public radio stations to use social media for informational purposes while Israeli commercial stations more frequently use their social media for promotion (Steinfeld & Laor, 2019). Based on the Facebook pages of Israeli radio stations, this work makes recommendations for radio stations’ use of social media. Thokozani Mhlambi argues that “Zulu took its shape in accordance with the demands of authorities, what they felt that people ought to know about, and what Africans listeners themselves wanted to hear. Between what Europeans designated Africans to be, and what Africans knew they were” (Mhlambi, 2019, p. 226) in “African Pioneer: K. E. Masinga and the Zulu ‘Radio Voice’ in the 1940s.” This thoughtful discussion focuses on the role of voice on Zulu radio. Antenna Dilemmas: The Rise of an Indigenous-Language Low-Power Radio Station in Southern California by Carlos Jimenez conducts an ethnographic study of Radio Indigena, a Low-Power Radio Station, as they applied for an FCC license, setting up an antenna, and launching the station over the internet (Jimenez, 2019). The work is significant because there is a need for more research on low-income, indigenous radio communities. Radio history continues to be a regular feature of this journal’s offerings. Michelle A. Tabbanor’s “Hold Your Liquor: NBC and Alcohol Advertising after Prohibition” navigates NBC’s development of a position that ultimately rejected alcohol advertisements through a study of primary documents (Tabbanor, 2019). Tabbanor’s study examines discourse in the context of the threat of radio censorship. “‘Government Control of Radio Communication:’ The 1918 Debate” by John Mark Dempsey and

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编者按：多样性，历史，框架和影响

在过去的几十年中，无线电研究的标志是它的扩展范围涵盖了不同的社区，经验，深入研究了过去，并使用了越来越多的创新研究方法或技术。在本期中，经过同行评审的各种原始研究成果表明，该领域的发展以及广播涉及社会和媒体众多方面的事实。本期的特色文章代表社区内以及世界上许多社区。在“新竞技场还是更多同一个竞技场？Facebook上的公共和商业广播电台” Nili Steinfeld和Tal Laor探索了以色列公共广播电台使用社交媒体作为信息目的的趋势，而以色列商业电台则更频繁地使用其社交媒体进行推广（Steinfeld＆Laor，2019年）。基于以色列广播电台的Facebook页面，这项工作为广播电台使用社交媒体提出了建议。Thokozani Mhlambi认为：“ Zulu的形成符合当局的要求，他们认为人们应该了解的内容以及非洲人自己想听的内容。在欧洲人所指的非洲人与非洲人所知道的人之间”（Mhlambi，2019年，第226页）在“非洲先驱者：KE Masinga和1940年代的祖鲁语“无线电之声”中”。这场有思想的讨论着重于语音在Zulu广播中的作用。天线困境：卡洛斯·希门尼斯（Carlos Jimenez）在南加州的土著语言低功率广播电台的兴起，对低功率广播电台Indigena进行了人种学研究，他们申请了FCC许可证，安装了天线，并通过互联网启动该站（Jimenez，2019）。这项工作意义重大，因为需要对低收入的土著无线电社区进行更多的研究。无线电历史记录一直是该期刊产品的常规功能。米歇尔·塔巴班（Michelle A.Tabbanor）的“持有酒：禁酒后的NBC和酒精广告”对NBC的立场进行了发展，该立场最终通过研究原始文件而最终拒绝了酒精广告（Tabbanor，2019年）。Tabbanor的研究在无线电审查威胁的背景下研究了话语。约翰·马克·登普西（John Mark Dempsey）和他的“'无线电通信的政府控制：'1918辩论' 无线电历史记录一直是该期刊产品的常规功能。米歇尔·塔巴班（Michelle A.Tabbanor）的“持有酒：禁酒后的NBC和酒精广告”对NBC的立场进行了发展，该立场最终通过研究原始文件而最终拒绝了酒精广告（Tabbanor，2019年）。Tabbanor的研究在无线电审查威胁的背景下研究了话语。约翰·马克·登普西（John Mark Dempsey）和 无线电历史记录一直是该期刊产品的常规功能。米歇尔·A·塔巴班（Michelle A. Tabbanor的研究在无线电审查威胁的背景下研究了话语。约翰·马克·登普西（John Mark Dempsey）和他的“'无线电通信的政府控制：'1918辩论'