世界中のSDRに無料でアクセス可能（KiwiSDRコミュニティ経由）

コミュニケーション, リアルタイム監視と追跡, OSINT

無料
ダウンロード/インストールは不要です
登録不要

世界中のKiwi SDRライブ受信機すべてにアクセスできます。世界中の受信機が共有している無線機の一覧を表示または閲覧できます。時間帯によって800台から2000台以上が利用可能です。

希望する場所、RFバンド、テキスト検索を入力するか、世界地図を見るだけで、まるでその場にいるかのように、地元のコミュニティメンバーが受信している内容を見ることができます。ハードウェアは不要、登録もログインも不要です（一部の放送局ではIDの入力を求められる場合があります）。もちろん、戦地や空港周辺など、他の地域よりも混雑している場所もあります。

The KiwiSDR community provides here an online platform that offers worldwide live access to thousands of KiwiSDR receivers deployed by users across various locations. This network of interconnected SDR receivers streams real-time radio signals via the internet, allowing individuals to explore global radio activities from their computers or mobile devices without needing to own or operate hardware themselves. The online SDR initiative enables unique opportunities for global signal monitoring, propagation studies, and hobbyist listening, connecting radio enthusiasts in an interactive, コラボレーション environment while expanding the reach and capabilities of software-defined radio technology.

アマチュア無線に入会したい場合は、 OSINTRFさん、これは大きな旅の第一歩です。 オープンソースプロジェクトとコミュニティによる共有の素晴らしい例です。

プロジェクトのハードウェア部分について、参考までに： the KiwiSDR project is an innovative open-source initiative focused on developing a software-defined radio (SDR) receiver that is accessible, affordable, and versatile. Based on a compact hardware device equipped with a high-performance analog-to-digital converter and a powerful マイクロコントローラ, KiwiSDR enables the reception of a wide range of radio frequencies, from long wave to shortwave bands. Its design emphasizes ease of use and integration with web technologies, allowing users to control and listen to radio signals remotely through a browser interface. This project fosters experimentation, education, and amateur radio activities, making sophisticated SDR technology widely available to enthusiasts and researchers around the globe.

分野： 無線通信、アマチュア無線、電子工学、情報分析、地球物理学。

WebSDRの無料代替サービス。

Worldwide SDR Free Access (via KiwiSDR community) compared with WebSDR
世界中のSDRに無料でアクセス可能（KiwiSDRコミュニティ経由）	WebSDR
Receiver hardware: The public list indexes receivers built on KiwiSDR, a wideband board covering 10 kHz to 30 MHz with a 14-bit ADC (LTC2248, as described in a 2017 review). Each owner hosts a unit and shares it.	Receiver hardware: A set of shared receivers listed at websdr.org, run by radio clubs, individuals and institutions on standardized WebSDR server software. Hardware varies from site to site.
Frequency coverage: Mostly the whole LF, MF and HF range from a single unit. VHF and above is not covered by the KiwiSDR board itself.	Frequency coverage: Most stations cover a limited range, such as selected amateur bands. The best known one, at the University of Twente, covers 0 to 30 MHz.
Concurrent users: A single KiwiSDR serves a small number of listeners at once (up to 4 in the 2017 review), each with an independent tuning. This is a real constraint on busy receivers.	Concurrent users: One receiver can serve hundreds of users at once through the browser, which suits popular stations.
Selection and discovery: The list has a world map, search by place or band, and a text filter, so you can pick the receiver closest to the signal of interest. This helps propagation and monitoring work.	Selection and discovery: Stations are grouped on a list page. There is no single common map interface across all receivers.
Cost and openness: Listening is free without registration. The KiwiSDR project is open source and hosts are volunteers. A unit was sold as a complete kit in the 2017 review, so check the current price.	Cost and openness: Listening is free. The server software is shared with station operators, but this page does not confirm its licence terms.

取り上げるトピック： SDR（ソフトウェア無線）、リアルタイム無線信号、KiwiSDR、オンラインプラットフォーム、信号監視、伝搬研究、オープンソースプロジェクト、コミュニティ共有、アナログ-デジタル変換器、マイクロコントローラ、リモートコントロール、ブラウザインターフェース、アマチュア無線、RFバンド、グローバル無線活動、インタラクティブ環境。