CwGet morse decoder 1.80

CwGet morse decoder 1.80 offers you a professional program to decode Morse code (CW) via sound card to text, which can work as narrow-band sound DSP-filter also.

No additional hardware required - your need only receiver and computer (5x86-133 or better) with sound card. Can cooperate with RZ4AG AAlog logger. It is software Morse decoder that REALLY work!

The working area of the program is divided into three windows, the sizes of which can be changed by the user by dragging the borders.

In the top window the current spectrum of a signal (blue line) and a peak detector of spectral components (green line) is shown. Ruler under this window shows frequencies of sound spectrum.The vertical red line in the top window shows the working frequency of the filter. To change the working frequency, click on the desired frequency (probably a peak). The short thick black line is the marker of TX frequency. It is used to help with zero-beat tuning. To change the TX marker position, click on the desired frequency by right mouse button (or by left mouse button with "Ctrl" key pressed).

The "Zoom" menu and "Alt-1" ... "Alt-7" hot keys change frequency scale of spectrogram. To move a visible part of spectrogram to left or right drag it by mouse with Alt key pressed.

The "AFC" button (auto frequency control) adjusts the long red line (working frequency) to the closest peak frequency. The numbers to the left of the AFC button determines the limits of AFC. The first number is local deviation in hertzs, i.e. maximal deviation from current frequency. Second number is global deviation in hertzs, i.e. maximal deviation from last user-selected frequency. User-selected frequency is shown at spectrogram by short red line .

When the option "Setup > AFC at mouse click" is selected CwGet immediately adjusts the RX frequency to the nearest station after every mouse click on the spectrogram regardless of the "AFC" button state. But this action is not made after click on the ruler under spectrogram.

The button "GotoMax" jumps to the peak frequency in the bandpass, The "AutoGTM" button switches on the automatic mode of "GotoMax". It jumps to the peak frequency of the strongest signal after detecting a pause of more than eight "dots" in the current signal.

The mode of automatic transceiver frequency control can be switched on by the "Setup > Tune RIG by" menu. In this mode transceiver radio frequency is changed to consist RX frequency to TX frequency. Auto-tuning is made  after click on spectrogram or ruler below. Tuning can be made by RIT or by VFO according selected option. Take to attention that not every transceiver has programmable RIT. In this case auto-tuning by RIT is impossible.
The "Setup > Tune RIG by > Use RIG1" and "Use RIG2" menu items is used to select a rig controlled by Omni-Rig.The "Setup > Tune RIG by > Show Omni-Rig Setup" menu item is used to activate Omni-Rig setup dialog. The "OnTop" button puts CwGet in front of all windows.

Major Features:

1. You can use CwGet as narrow-band sound DSP-filter also. So CwGet can help you to decode Morse code "by ears". The bandwidth of a sound filter is selected by the "Setup > Sound Output" menu. A sound-card used for this DSP-filter output is defined by "Setup > Output Soundcard Number" menu. If your sound card supports a full-duplex mode, the same card can be used for sound input and output simultaneously.
2. CwGet can decode signals from sound file (WAVE-file) also. A desired file is selected by the "File > Decode From File" command. WAVE-file must be Windows PCM file, without compression. Preferred file parameters are mono, 16 bit, 11025 Hz.
3. CwGet has one minute sound buffer. "Replay" and "Save" buttons are used to control this buffer.
4. The "Replay" button click makes CwType to replay previous 10 seconds of received signal.
5. The "Save" button writes previous 60 seconds of a sound to a wave file in the "Waves" directory.
6. This wave file is saved with time-stamped name (HH_MM_SS.wav) in a sub-directory with date-stamped name
7. (YEAR-MM-DD). For example, the file "Waves2004-06-0315_10_43.wav" is a piece of sound started at 15:10:43 UTC on 03 June 2004.
8. Special macro-sequences can be used in the CwType software(V1.32 and later) to control this sound buffer also.

Enhancements:

1. Multi-channel decoder was made.
2. The "Enable Squelch in Main RX Window" option was made.
3. The "Put Time Marks to a Capture File" option was made.
   

Requirements:

1. Pentium-100 or better
2. Sound card