Fsk rtty software

Click here and select your interface, then click on WriteLog. In some cases, the software used to install the drivers for the USB-to-serial port adapter will inform you which port has been assigned. In the example above, a 4-port USB-to-serial adapter has been installed on a laptop computer.

Windows did not actually assign COM 1, 2, 3 and 4. Enabling Software generated FSK. Another audio cable, typically monaural, is then connected from the soundcard to the transmitter Mic or audio input.

A high input voltage is usually defined as the Mark and low, or ground, is the Space. The radio configuration menu has a parameter to swap these definitions if needed to make the higher RF frequency the Mark signal.

FSK requires a keying interface, which is identical to a CW keying interface. The Mark and Space logic can be swapped with Invert checkboxes in a couple places to ensure the Mark signal is the higher RF carrier transmitted and received. In summary, the simplest way to get started in RTTY is to connect a stereo receive audio cable and a monaural transmit audio cable between the radio and PC soundcard.

From this starting point, refinements can be made to enhance your RTTY operation. The choice of AFSK vs. FSK for transmission can be explored. INI file only in the registered version. The " Beacon " button switches on the beacon mode. In this mode Alt-F12 macro is executed periodically. The period in seconds is defined by the regulator on the left of the "Beacon" button.

Special macrosequences can be used to switch beacon mode on and off also. The text can also contain macrosequences. Then you can view this file or print it. The hotkey of this command is Ctrl-N. New received text is written into that file. If the file exist, new text is appended to it. Capture-file state is shown in the status line. The hotkey for these commands is " Alt-V ". Take to attention that a minute of sound recording need above 1 MByte disk space. TrueTTY has one minute sound buffer.

The "Save" button writes previous 60 seconds of a sound to a wave file in the " Waves " directory. Special macrosequences can be used to control this sound buffer also. These parameter mean the real sampling frequencies during recording and playback correspondingly. Manual switching of receiving character shift can be made from keyboard.

The program can transfer received data to AALog logger V1. To transfer data from the RX-window, double-click on a word or select words with mouse. Then select the field from the popup-menu. When data is transferred to the logger, the same data are transferred into the appropriate edit field of TrueTTY. Data from the edit field is transferred after exiting from it. In this case TrueTTY recognize callsign or control number automatically. This new meaning is used to capture words from the RX window and to transfer data to the logger.

If empty string is defined for mode, information about this mode is not transferred at all. A sample rate must be , or Hz.

Preferred file parameters are mono, 16 bit, Hz. The program looks for this file in the working directory. You can have several variants of the ini-file for different situations for example, one for ordinary QSO's, and another for contests.

EXE each with a different working directory. The number shown in the " FrB " field of the status bar means the number of free buffers for recording a signal. If it is reduced to ten or less the speed of the computer will not keep up. Try to reduce the number of simultaneously running programs or replace the computer Most of the screen buttons have keyboard shortcuts.

TrueTTY interfaces with logger software via ini-files and Windows messages. DLL library. Default value is 1. See documentations for details.