QTH Grid Square Locator vs SP2ALERT

QTH Locator is a practical tool designed for amateur radio operators, allowing them to easily calculate their location using the Maidenhead grid system. This app is specially designed for radio enthusiasts who need precise and reliable results for location calculations. Whether you are participating in a radio contest or engaging in DX communication, QTH Locator provides accurate GPS-based results and works even in offline mode. Main Features: - Real-Time GPS Location Calculation: The app utilizes your device's GPS to accurately determine your Maidenhead grid locator in real time. - Efficient and Accurate: Instantly calculates your grid locator to enhance communication with other radio operators. - Offline Functionality: Calculate your QTH locator even without an internet connection, ideal for remote locations. - Optimized for Amateur Radio Activities: Perfect for radio contests, field operations, and DX communications. - Interactive Map View: Visualize your grid locator directly on an integrated map for an enhanced user experience. About Amateur Radio Amateur radio, also known as ham radio, is a popular hobby where licensed users communicate across various radio frequencies. The QTH locator system plays a vital role in this field, helping operators accurately calculate their position, making it easier to connect with others worldwide, especially during contests and DX activities. Whether you're an experienced operator or a beginner, calculating your QTH location is crucial for effective communication. Download QTH Locator today and enhance your amateur radio experience with accurate and efficient location calculation tools.

SP2ALERT is an alert app for amateur radio operators that delivers real-time push notifications for new POTA (Parks on the Air) and SOTA (Summits on the Air) spots. ■ POTA / SOTA Spot Alerts Automatically detects new spots and sends push notifications — even when the app is in the background. ■ Three Alert Modes (foreground only) • CW Vibration — vibrates in Morse code pattern (adjustable WPM and amplitude) • CW Tone — plays Morse code through the speaker (300–1500 Hz pitch) • Voice — reads spot information aloud (phonetic alphabet supported) ■ Flexible Filtering • Filter by band and mode (all bands from 160m to 13cm supported) • Filter by POTA program (JP, K, VK, etc.) or SOTA association • Include/exclude specific callsigns, park references, or summit references • Save and switch between multiple named presets ■ Hunt / Chase Management • Import POTA Hunt and SOTA Chase history via CSV • Alert only for unworked parks and summits • Multi-location activations (same operator at multiple parks) are always alerted even if one park is already hunted ■ Notification Controls • Configurable polling interval • Alert time window (e.g. 7:00–22:59 only) • Re-alert interval • Alert expiry timer • Additional alert on frequency/mode change ■ English / Japanese Localization The UI automatically switches between English and Japanese based on your device language setting. 【iOS Limitations】 Background operation is limited to notification banners and sounds. CW tone, voice, and vibration alerts only work while the app is in the foreground. Background polling timing is controlled by iOS and may be delayed beyond the configured interval.