RST 599

RST 599

CW QSO Simulator

8 ratings
3 reviews
Free
With Ads

Details

  • Released
  • Updated
  • November 23, 2019
  • March 21, 2026

Features

RST 599 screenshot #1 for iPhone
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About

This application simulates amateur radio CW QSOs with realistic call signs, signal levels, and CW speeds. It supports various QSO styles, including contest and rubber stamp types, with adjustable settings for a personalized training experience.

Multiple QSO styles supported
Realistic signal meter
Spectrum scope display
Adjustable CW speed and call sign
Pile-up simulation
QRN presence toggle
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What's New in RST 599

5.3.0

March 21, 2026

Improved stability.

User reviews

Fun and it’s help my copy!

This was a useful app. I just reloaded it and there are more enhancements. Very engaging. The thing for me is that it helps me with my nerves to get use to it. Also I found I can trust my copy more and am getting it right. When the code comes in to fast or it’s just an awkward unusual call, I can type what I got and add ‘agn’. Just great! In America we would use ‘?’ instead but the way he list it is just fine. Very pleased! I use to use a similar app on windows called ‘Morse runner’. It’s a little tougher. But this one is wonderful. TU es 73’s de n5vwn
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Response from developer

Thanks for your good feedbacks and comments. I would like to add '?' button on your request in the next release. ------------------------- '?' button was added in ver.4.2.0.

flashhback on iPhone

Many flashback has occurred on iPhone XS

Response from developer

Thanks for your feedback comment. Regarding the requested items, I would like to consider responding in the easy mode. Please wait for a week or so. ---- Try using Ver3.8.0. If you would like to change the Tone of the callback, you can use RIT for this purpose. ---- Could you please try to uninstall App, Reboot and reinstall App? At least, my iPhone8 and iPhone12 mini with iOS15.1 have no trouble. Apple certification is very certain, so I think common issues are not happen.

Fun & Free

Tnx. Keep up the good work!

Response from developer

Thanks for your comments. It sounds good for me.

Developer apps

FAQ

What types of CW QSOs does RST 599 simulate?

RST 599 simulates "599BK type QSO", "Rubber stamp type QSO", and "Contest type QSO" (AADX Contest style). This allows for varied practice scenarios.

How realistic are the signals in RST 599?

The app features a realistic signal meter that adjusts according to audio signal level. It also simulates varying call signs and CW speeds for each QSO to enhance realism.

Can I customize my own station's settings in RST 599?

Yes, you can arbitrarily set the call sign and CW speed of your own station when issuing CQ. This provides a personalized training environment.

Does RST 599 support offline play?

The provided data does not specify offline play capabilities. However, it is designed as a simulator, suggesting it may require an internet connection for certain features or updates.

What are the supported devices for RST 599?

RST 599 is supported on iPhone and iPod. It also supports keyboard input from Apple Silicon Mac, but is not compatible with iOS.

How often is RST 599 updated?

The latest version is 5.3.0, last updated on March 21, 2026. This indicates a recent update, suggesting ongoing development and support.

Does RST 599 have ads?

Yes, RST 599 contains advertisements. This is indicated by the 'hasAds' flag being true in the application data.

What is the age rating for RST 599?

RST 599 has an age rating of 4+. This means it is suitable for users aged 4 and above.