Decodes NAVTEX and RTTY

Black Cat Systems

Designed for iPad

    • 2.0 • 11 Ratings
    • $2.99



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:

Buy your copy of NAVTEX pad today, and never be without up to date marine weather information again.

What’s New

Version 2.0

Improvements to decoding RTTY mode.

Ratings and Reviews

2.0 out of 5
11 Ratings

11 Ratings

G4gene ,

Just a novelty

The least they could do is deliver it configured for US Navtext stations which are like most of the world, or with instructions for same, but no. The instructions just list the settings with barely enough detail that someone knowledgable about the technicalities of Navtext could figure the rest out. Does it work? Yeah, sort of, if you ever figure out the settings and are having a good day on the radio. But if you’re serious about receiving Navtext broadcasts, which means you’re offshore 200 miles or more, you wouldn’t want to be depending on this app for your weather. So far I’ve managed to receive about 50% of a Navtext broadcast and the novelty has worn off.

Triple_Deployer ,

Absolute garbage

Downloaded this as it says it also decodes RTTY. When you open the app, even with ZERO audio input, the very cartoonish 1980s spectrum display dances like it’s on fire. (Not even close to accurate.) This program decodes garbage with ZERO signal being injected/received. The SETTINGS are extremely rudimentary, and the FAQ is a joke.

I have not tried the other stuff, nor NAVTEX functions, but I wish I had read the other reviews before I wasted $8 on this package. Don’t make my mistake.

BrianSchaeffer ,

Does not work. Avoid the investment

Clunky and not reliable. Does not work as advertised in my experience and I’m dissatisfied

App Privacy

The developer, Black Cat Systems, indicated that the app’s privacy practices may include handling of data as described below. For more information, see the developer’s privacy policy.

Data Not Collected

The developer does not collect any data from this app.

Privacy practices may vary, for example, based on the features you use or your age. Learn More


  • Family Sharing

    Up to six family members can use this app with Family Sharing enabled.

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