# RST 599TK Pro — Real CW QSO Simulator

> Real CW QSO Simulator (iPhone/iPad app by koji kamogawa.)

- Source: https://appshunter.io/ios/app/rst-599tk-pro/id1511628467 (this page in markdown: same URL + `.md`)
- Developer: [koji kamogawa](https://appshunter.io/developer/1488210713)
- Category: Education, Entertainment
- Price: $2.99
- Age rating: 4+
- Requires: iOS 15.0 · 32 MB
- Languages: American English
- Released: 2020-05-05
- Data updated: 2026-08-26
- User reviews in markdown: https://appshunter.io/ios/app/rst-599tk-pro/id1511628467/reviews.md

## What is RST 599TK Pro?

This app is a real CW QSO simulator for Amateur Radio. 
"599BK & AADX Contest type QSO" is supported. 
Input of Morse Codes are by using Electric Touch Keyer or Straight Key. 
Changing of TX/RX is by SEND button.
Supported Min-in CW Decoder too.

【Characteristic】
1. "599BK" and "Contest" style support.
2.Support the CW Speed Control, Reverse of Dot/Dash pad, and Straight Key.
3.Realistic signal meter according to the audio signal level.
4.Status display showing TX / RX operation.
5.Support the space insertion operation both automatic and manual.
6.Support the Min-in CW Decoder function.
7.Support the shortcut-key of CQ and TU.
  CQ Button function can be set by setting menu.
8.Support the repeat-call function.
   It works only when the TU button is pressed at the end of the QSO.
9.Support the RIT function.
10. Support input function by key button.

【How to use】
1.The case of CQ Calling
  Press SEND button
  Input "CQ CQ DX DE (YOUR CALLSIGN) PSE K" by Touch Keyer or Straight Key.
  Press SEND button again

2.The case of CQ Answering
  Press SEND button
  Input  "QRZ DX" by Touch Keyer or Straight Key.
  Press SEND button again

--- Examples of QSO ---
[CQ Calling]
"CQ CQ DX DE xxnxx xxnxx PSE K"
>>> xxnxx DE **n** K
"**n** DE xxnxx UR RST 559 BK"
>>> R MY RPT 559 UR RST 599 BK
"QSL TU"
>>> R 73 TU
"E E"
>>> E E  

[CQ Ansewing]
"QRZ DX"
>>> "CQ CQ DE **n** **n** PSE K"
"**n** DE xxnxx K"
>>> "xxnxx DE **n** UR RST 579 BK"
"R **n** DE xxnxx UR RST 599 TU"
>>> "R TU"
"E E"
>>> E E

--- DETEC WORDS ---
[CQ Calling]
CQ
CQ DX
CQ NA
CQ JA

[CQ Ansewing]
QRZ
QRZ DX
QRZ NA
QRZ JA

[BOTH]
DE
K
BK
UR RST
73
TU
E E
etc...

【Example usage video】
- Touch Keyer -
https://www.youtube.com/watch?v=4CqcH7-4iiE
- Straight Key -
https://www.youtube.com/watch?v=CuSEaJtD3KQ
- Microphone IN Mode -
https://www.youtube.com/watch?v=goN9hVDEGnM


## Version history (last 5 releases)

### 2.7.0 — 2026-08-19

Supported the Iambic Mode A.

### 2.6.0 — 2023-04-03

Adjusted the output volume level.
An audio filter for sidetone has been added to the microphone input stage to reduce the influence of external sounds.

### 2.4.0 — 2023-03-26

To solve the problem, disabled the CQ, TU, and KB buttons when using the Min-in decoder.
To solve the problem, the Keyer cannot be switched during SEND.

### 2.3.0 — 2023-01-09

In addition to keyer and microphone input, a key button input function has been added.

### 2.2.0 — 2022-12-18

Supported the shortcut-key of CQ and TU.
CQ Button function can be set by setting menu.
Supported the repeat-call function.
This function can select ON or OFF.
Supported the RIT function.

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## More apps by koji kamogawa

- [UkeDrum](https://appshunter.io/ios/app/ukedrum/id1488210714)
- [RST 599](https://appshunter.io/ios/app/rst-599/id1488919851)
- [WabunMorse](https://appshunter.io/ios/app/wabunmorse/id1490745806)
- [音耳せん](https://appshunter.io/ios/app/id1496478545)
- [RST 599 Pro](https://appshunter.io/ios/app/rst-599-pro/id1497452984)
- [RST 599x](https://appshunter.io/ios/app/rst-599x/id1498597799)

All apps by koji kamogawa: https://appshunter.io/developer/1488210713

## Related topics

[rst 599tk pro](https://appshunter.io/ios/topics/rst-599tk-pro) · [rst 599tk](https://appshunter.io/ios/topics/rst-599tk) · [rst 599 pro](https://appshunter.io/ios/topics/rst-599-pro) · [rst 599](https://appshunter.io/ios/topics/rst-599)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-26.*