FT8 Decoder 與 NAVTEX Pad 使用情況與統計

An FT8 decoder. FT8 is a weak signal digital mode, currently very popular in the amateur radio HF shortwave bands. The ft8d app allows decoding FT8 8FSK modulated signals contained in externally provided audio or sound from an SSB radio or SDR. The app supports Level 1 decoding of messages with standard callsigns or 13 character free text messages. The app can also generate standard FT8 message audio, so can be used to experiment with sending and receiving FT8 encoded and modulated audio. The app does NOT perform Auto-sequencing, or encode long hashed callsigns.

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NAVTEX Pad

NAVTEX Pad lets you view NAVTEX and Radio Teletype (RTTY) marine weather transmissions on your iPhone, iPod Touch, or iPad. Just set it near a radio (or for better quality decoding, connect a cable from the radio's audio output jack to the microphone jack), tune in a NAVTEX frequency (usually 518 kHz), and watch the transmissions. NAVTEX weather and marine safety messages are transmitted from dozens of sites around the world. Now you can display these messages without buying a dedicated NAVTEX receiver. Both BAUDOT and ASCII RTTY can also be decoded. The shift and baud can can be selected from the standard values. You can also save your received text to view later, or transfer to your computer via iTunes. Schedules of upcoming NAVTEX transmissions are available within the app, so you'll never miss one. Visit the support page for step by step instructions for using the app: http://www.blackcatsystems.com/ipad/iPad_NAVTEX_Pad_FAQ.html Buy your copy of NAVTEX pad today, and never be without up to date marine weather information again.