11/29/2023 0 Comments Morse decoder for sdr![]() The filter can also be left off in a wide-band mode (frequency lock icon unlocked). Tap the spectrogram to set the audio filter to the frequency of a selected frequency peak. On the iPhone, tap the lock button to the right of the spectrum graph to toggle the filter off and on. The Morse code WPM (words per minute) detection speed is automatically adaptive from about 8 to 40 WPM, and can be locked to the current estimated WPM dot speed (WPM lock icon locked). One the iPhone, tap the lock button to the right of the waveform graph to lock and unlock automatic WPM detection. You can also manually set the WPM code speed using the plus and minus symbols that appear in the waveform graph, or the slider control on an iPad. (QRQ mode also supports higher frequency dot-dash tones.) There is a QRQ High Speed WPM Mode which will work better for code speeds in the range of 30 to 80 WPM. Please note that it is easy to mis-aim an iPhone's microphone so that its noise cancelling microphone will cancel out any Morse Code tones. So make sure to aim your iPhone so the the tones show up in the spectrum display. But you can also manually control the threshold setting.Īlso, please use the manual settings if automatic decoding does not adjust to the frequency, WPM or background noise threshold level.īy default, the threshold (the signal level above any background noise required to detect a dot or dash) is set automatically by the AGC. On the iPhone or iPod Touch, tap to the left of the waveform graph to switch the manual threshold slider on and off. The iPad version also includes a switch to enable manual threshold control. A Histogram of the tone signal levels with a marker for the detection threshold level are displayed next to the waveform graph. In addition to the features of the regular HotPaw Morse Code Decoder, this Pro vesion of the HotPaw Morse Code Decoder also includes a RePlay function, which pauses recording and re-decodes tha previous 1 minute of audio input using the current manual settings. ![]() This is useful if you miss some code because the settings (audio frequency, WPM, and level) were not yet set for the signal you desire to decode. This Pro version also includes support for some International alphabet characters.It wasn’t long ago that you needed to know Morse code to be a ham radio operator. If you have a 16 bit sound card installed then use the 16 Bit setting.That requirement has gone in most places, but code is still useful and many hams use it, especially hams that like to hack. ![]() The 32Bit setting is supposed to provide higher dynamic range when a true 24 Bit sound card is installed. The sound card sample setting to 32 Bit will require Win7 I cared a lot for keeping the CPU load low,- so i think this program can run on any general purpose PC, Laptop or Netbook. The general rule for the MRP40 graphic is: "what you see is what your hear" The "CW Center option" allows you to adjust the audio out to your personally preferred CW Audio tone frequency level (Vertical scroll) In the Frequency settings box you choose SSB or CW Bandwidth and adjust it with the vertical slider to your needs ![]() This way the frequency scale shows actual values. Just set it to the actual Quartz or VFO Frequency(in KHz) of your hardware frond end. In the middle of the axis of spectra display you can edit the green number "0". Tuning is straight and easy: Just click into the waterfall,- keep mouse button down and drag.įor fine tuning you do a right button mouse click to any position in the upper waterfall,- keep mouse button down and drag. (Tuning is refined 1:50) => 1Hz accuracy! The output audio volume is coupled to that as well. With the horizontal scroll bar on the main Window you adjust the color contrast of both graphic displays at the same Initially you need to care for the sound card settings (click Options- show- sound card) Update from MRP40 to MRP40-SDR price: € 26,25 Euro Readme first!įor those who do not have SDR transceiver front end hardware with IQ signal output, I recommend the usage of normal MRP40ĭownload and try the full functional 30 day trial of normal MRP40 version 66.Īny version normal price: € 52,50 Euro (to look up the price in other currency go to currency converter) Readme first!ĭownload and try the full functional 30 day trial of MRP40-SdrPlay-RSP2 version. Sampling Rates: 48, 96, and 192 KHz (16 or 32 Bit)ĭownload and try the full functional 30 day trial of MRP40-SDR version for Soundcard IQ inputĭownload and try the full functional 30 day trial of MRP40-SdrPlay-RSP1 version. MRP40-SDR also can transmit morse signals via I-Q output. Plus a tuning front end for incoming I-Q Signals This program consists of the well known MRP40v64 MRP40-SDR works with external SDR transceiver hardware that provides IQ-input signal like Softrock, KX3 or similar MRP40 Morse Decoder for I-Q input signals:
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