5月3日的Callsign Search应用程序分析

Search the exhaustive QRZ.COM call sign database from your mobile device. Instant access to more than 1.2 million amateur radio call signs from around the world. Completely free with no subscription required. Universal version designed for both the iPhone and iPad. Features: * Complete license holder information * Interactive map with beam heading and distance (on supported devices) * Displays profile photo (if uploaded to QRZ.COM) * Display biography (if updated on QRZ.COM) * Send email to the displayed contact * Call sign lookup history * Access to QRZ.COM website from within the application * No advertising or user tracking The information displayed in this app is provided by QRZ.COM. In the United States, licensee information is publicly available from the Federal Communications Commission. For users who wish to correct, update or delete your license data as it appears in this app please visit the QRZ.COM website.