Antenna+: CW,PDK31,DTMF

Antenna+: CW,PDK31,DTMF

RF Calcs, Morse Code, Convert

3 ratings
4 reviews
$0.99 Free
In-App Purchases

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Price history


Details

Released
October 5, 2011
Updated
October 25, 2026

Features

Antenna+: CW,PDK31,DTMF video #1 for iPhone
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About

This toolkit offers amateur radio operators and RF hobbyists essential formulas and instant results for antenna design, feedline loss, and signal utilities. It includes calculators for antenna length, frequency conversion, VSWR, and propagation planning, along with DTMF and Morse code tools.

βœ“Antenna length calculators
βœ“Frequency-to-wavelength conversion
βœ“VSWR and ERP calculators
βœ“Horizon visibility and solar calculators
βœ“DTMF decoding/keying
βœ“Morse/PSK31 tools
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What's New in Antenna+

9.0

October 25, 2026

You bring patience, skill and curiosity to your radio hobby. Thank you for using Antenna+ and for sharing your ideas. This update adds an independent Apple Watch app, quicker ways to repeat a message, and more control over your saved calculations. - Meet Antenna+, the new name for the app. Your existing local app data stays in place. - Use Antenna+ independently on Apple Watch, without the iPhone app or a connected phone. - All 14 watch calculators have unlimited use and require no Pro purchase. Use the same antenna and RF calculations as your phone, right from your wrist. - Work with antenna dimensions, solar times, horizon estimates, ERP and EIRP, wavelength, RF power conversions, and VSWR loss. - Read cleaner watch screens with short text labels. Help is the final Home action, and calculator screens end with Save, Share, and Help. - Choose units, edit values, and open results on separate watch screens. Solar calculations include date selection and searchable time zones. - Save a calculation's original inputs, units, and results locally on your watch. Open Saved from Home to review individual entries or delete a selected record. - Watch records stay separate from records on your iPhone or iPad. - Share complete calculation text through the sharing options available on your watch. Original labels and values remain in the saved and shared calculation. - Find instructions, full result labels, and help with saving errors in Help. Accessibility descriptions retain the full labels and values. - Key Morse on your watch by holding Key or tapping Dot and Dash. Use Next letter and Space to separate letters and words. - Play your entered Morse again, stop the current tone or playback, or clear the code. Slower and Faster adjust the playback speed. - Turn watch sound on or off. Haptic feedback remains available when sound is off or the watch cannot start audio. - Find favorite chats and signal tools together at the top of your Chats list. - Send your latest chat message again with the small play control beside it. Replay stays with the original message, so your chat stays easy to follow. - Stop a transmission directly from the message when you need to cancel it. - Fixed chats that could keep showing Transmitting after a send had finished or been canceled. - DTMF, Morse, More, and related controls give button titles room to stay readable instead of squeezing into narrow columns. - Records load additional entries automatically as you approach the end of the list. There is no Load More button to press. - Scroll back through records as more entries appear, and open a saved calculation to review its full inputs and results. - Search saved records by title, notes, tool, inputs, or results. Combine favorites, tool, type, and date filters with your preferred sort order. - On iPad, browse Tools and Records beside their detail views. On iPhone, follow the same selections through individual pages, including saved inputs and results. - Transfers run in the background with progress and a Cancel option. Import JSON, or export JSON and CSV for all records or your current selection. - Imports skip matching records, including duplicates within the same archive. Your existing records stay intact when new records are imported. - Canceling an import keeps records already saved. Export completion is reported after the file is saved to your chosen destination. - Each import examines up to 10,000 records, including duplicates, and each export includes up to 10,000 records. Your stored history has no new 10,000-record cap. - JSON archives have a 100 MB limit, with a 1 MB limit for each record. Find all transfer limits in Help before you begin.

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Subscriptions & In-App Purchases

Monthly All Access Pro Usage

Unlimited app usage with all features for 1 month

$1.991 Month
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User reviews

Works great with ham radio

I really like the new tone features

NO DTMF At All

There is nothing in this app that has ANYTHING to do with DTMF. Totally misleading title.

Needs to be updated

I can’t get the app to open in iOS 14

It works

I've built a couple of antennae using the dimensions specified by this app and after just a little fine tuning they have proved to be very successful.

Developer apps

FAQ

What is Antenna, CW, Morse, DTMF tools used for?

Antenna, CW, Morse, DTMF tools is a utility application designed for amateur radio operators and RF hobbyists. It provides various calculators and tools for antenna design, signal analysis, and propagation planning, as well as DTMF and Morse code functionalities.

Does Antenna, CW, Morse, DTMF tools require an internet connection?

No, Antenna, CW, Morse, DTMF tools does not require any network connectivity to function. All calculations and tools are available offline, making it convenient for use in the field.

What types of antennas can be calculated with Antenna, CW, Morse, DTMF tools?

The application includes calculators for various antenna types, such as 5/8th Wave Vertical, Half-Wave Dipole, Dipole & Inverted Vee, Ground Planes, and Quad (Cubical) antennas.

Can Antenna, CW, Morse, DTMF tools help with propagation planning?

Yes, Antenna, CW, Morse, DTMF tools features horizon visibility and solar calculators to assist with propagation planning. These tools help users plan optimal operating windows based on solar activity and geographical visibility.

What are the signal utility features in Antenna, CW, Morse, DTMF tools?

The signal utility features include DTMF decoding and keying, allowing users to decode DTMF tones and generate tones for various applications. It also includes Morse/PSK31 tools for code communication.

What is the user sentiment for Antenna, CW, Morse, DTMF tools?

Based on the available data, Antenna, CW, Morse, DTMF tools has a rating of 2.3 stars from 3 ratings. This indicates a mixed to negative user sentiment, suggesting potential areas for improvement.

How often is Antenna, CW, Morse, DTMF tools updated?

The application was last updated on January 28, 2026, with version 8.11. This indicates a recent update, suggesting ongoing development and maintenance.

What devices is Antenna, CW, Morse, DTMF tools compatible with?

Antenna, CW, Morse, DTMF tools is compatible with both iPhone and iPad devices. It is optimized for both platforms with Retina-ready icons.