RST Decoder

Name: RST Decoder
Rating: 5 (6 reviews)
Author: koji kamogawa

Simple Morse Decoder App

Only for iPhone

Free

6 Ratings
Ages

4+
Years
Category

Education
Developer

koji kamogawa
Language

EN
+ 1 More
Size

10.7
MB

iPhone

Simple Morse Decoder App for CW Beginner It is a Morse practice App that you can use to check if you are keying the correct code. This is an App that decodes Morse code input from the microphone. It is a Morse practice App that you can use to check if you are keying the correct code. Signals with good S/N can be decoded correctly, but signals with bad S/N cannot be decoded correctly. Also, the performance will be degraded for extremely slow or fast signals. Usually about 5 to 10 characters are required for speed synchronization of Morse Code. Adjust the input signal so that the peak value changes from level 6 to level 7. Make fine adjustments to each parameter according to the reception status. [Additional Functions] -In addition to the decoder using BPF, a new decoder using FFT has been added so that it can be switched according to the usage. -AFD (Auto Frequency Detector) function has been added to the decoder using BPF, and BPF can be set automatically by pressing the AFD button. -The decoder using FFT automatically follows the strongest signal in the band by AFD (Auto Frequency Detector) and AGC (Auto Gain Control). You can also hold the AFD / AGC parameters by pressing the Lock button. * There will be a time lag of about 1 to 2 seconds for AFD tracking. [Control parameters] 1. Audio Input Level 2.BPF ON/OFF 3.BPF of Center Frequency 4.BPF of Band Width 5.CW Speed Control ON/OFF 6.CW Speed Control Low, Mid1, Mid2 or High 7.Delete All Decoded Text 8.Realtime CW Signal Display 9.Input signal recording / playback function *Japanese/KANA text is not supported. [Note] Since the signal after BPF is output to the audio output, it can also be used as an AF-CW filter. [URL of this App working example video] https://youtu.be/Pwp7W4m-m34

Ratings & Reviews

5.0

out of 5

6 Ratings

Idiot hams don’t know how to use it.
06/22/2022

rickthedj
If you think that this will copy someone with a bad fist, you’re an idiot. It does well with a strong signal and a good fist, as it should. The two decoding algorithms, Work well, even with QRN. If you don’t like what it does, then decode by ear, but go get a hearing aid, because you can’t hear like you did when you were in your 20s.

Developer Response
Thanks for your comment and five stars.
Idiot hams don’t know how to use it.
06/22/2022

rickthedj

If you think that this will copy someone with a bad fist, you’re an idiot. It does well with a strong signal and a good fist, as it should. The two decoding algorithms, Work well, even with QRN. If you don’t like what it does, then decode by ear, but go get a hearing aid, because you can’t hear like you did when you were in your 20s.
Developer Response 07/02/2022
Thanks for your comment and five stars.
Works great
10/22/2021

Nebben_Almighty
Works great for practicing and making sure I’m keying right, one thing I would like to see in this app is the ability to have the app in landscape.

Developer Response
Thanks for your good comments.OK, I will try to study for implementation of the landscape mode.Please wait a while.---Landscape mode is supported in Ver2.2.0.
Works great
10/22/2021

Nebben_Almighty

Works great for practicing and making sure I’m keying right, one thing I would like to see in this app is the ability to have the app in landscape.
Developer Response 10/24/2021
Thanks for your good comments.OK, I will try to study for implementation of the landscape mode.Please wait a while.---Landscape mode is supported in Ver2.2.0.
Works well!
01/17/2023

Eagleriverprof
After a few minutes to see what it’s all about, it showed the noise and code clearly. A bit of fiddling and I was copying nice code, as well as some pricy software.Of course, signal fading and bursts of occasional QRM would lose the code as most others also do.I will work more with this one, and so far I am very satisfied!

Developer Response
Thanks for your comment and five stars. I need a time, but I will try to improve the decoding function.
Works well!
01/17/2023

Eagleriverprof

After a few minutes to see what it’s all about, it showed the noise and code clearly. A bit of fiddling and I was copying nice code, as well as some pricy software.Of course, signal fading and bursts of occasional QRM would lose the code as most others also do.I will work more with this one, and so far I am very satisfied!
Developer Response 01/18/2023
Thanks for your comment and five stars. I need a time, but I will try to improve the decoding function.
Pretty bad
05/14/2021

sweatlord171
Has potential but it has too much difficulty unless your going extremely slow, at 15 wpm it’s mistaking x for k and y which sound nothing like eachother and t gets mistaken for e and the other way around. Just not viable for anything serious, humans can do it as good or better than this 100% of the time. Maybe if there was a custom wpm option to put in your actual key speed it might have an easier time but I need to pause for about a second between each letter for it to process them. Most people don’t send much slower than 15 wpm so this isn’t the solution to your problems.

Developer Response
I am very sorry for pretty bad review.At first, you should understand that this App is for a Morse practice App that you can use to check if you are keying the correct code for the Morse Beginner.I understand this app is not for actual operation, and Auto mode of CW Speed algorithm is not enough.For general use, CW Speed of Mid1 or Mid2 is better than Audo.And as you may know the Audio Level detection has bad too.But, I will intend to improve this App a little by bit because of user being.
Pretty bad
05/14/2021

sweatlord171

Has potential but it has too much difficulty unless your going extremely slow, at 15 wpm it’s mistaking x for k and y which sound nothing like eachother and t gets mistaken for e and the other way around. Just not viable for anything serious, humans can do it as good or better than this 100% of the time. Maybe if there was a custom wpm option to put in your actual key speed it might have an easier time but I need to pause for about a second between each letter for it to process them. Most people don’t send much slower than 15 wpm so this isn’t the solution to your problems.
Developer Response 05/16/2021
I am very sorry for pretty bad review.At first, you should understand that this App is for a Morse practice App that you can use to check if you are keying the correct code for the Morse Beginner.I understand this app is not for actual operation, and Auto mode of CW Speed algorithm is not enough.For general use, CW Speed of Mid1 or Mid2 is better than Audo.And as you may know the Audio Level detection has bad too.But, I will intend to improve this App a little by bit because of user being.

Added a recovery function so that the app can start even in environments without network connection. However, in that case startup will be delayed by 10 seconds.

Version 3.1.0

12/08/2023

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