RTTY software, Digital mode ham radio. A program for amateur radio digital communications via a sound card. Supported modes are RTTY Baudot code, ASCII 7 or 8 bits. PSK3. 1 BPSK and QPSK,BPSK6. Spectrogram Software' title='Spectrogram Software' />QPSK6. BPSK1. 25,AMTOR FECSITOR B, NAVTEX. Multi. FSK 1. 6,Multi. FSK 8. HF PACKET and UHF PACKET AX2. KISS TNC emulation mode. SELFEC SITOR,AMTOR ARQ SITOR A and DTMF code decoding is also possible. No additional hardware is required. You only need a transceiver and computer Pentium 1. A simple circuit for PTT control can be used. It is fast and convenient to use with many macros for transmitting. Spectrogram Software' title='Spectrogram Software' />Can integrate with AALog logger. Platform Windows 9xNT2. XPVista78. The authors program overview. The working area of the program is divided into several 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 are shown. Sonic Visualiser is a program for viewing and analysing the contents of music audio files. Specializing in QEEG Quantitative EEG analysis and display software, database as well as discriminant functions to help diagnose neurological disorders. The vertical red lines in this window show the working frequencies of the RX filters. In most modes you see two vertical line in PSK modes only one. To change the center frequency, click on the desired frequency probably between the peaks. In Multi. FSK mode mouse click defines lowest radio frequency, not center one. The short thick black lines show TX frequencies. In PSK modes you see only one TX frequency. To change the TX frequency, click on the desired frequency by right mouse button or the left mouse button with Ctrl key pressed. Ruler under top window shows frequencies of sound spectrum. RX and TX frequencies and shifts are also shown in the status line. You can use keyboard and screen buttons located below spectrogram ruler for fine tuning. Alt lt, Alt Left keystrokes and lt button move RX frequency to 1 Hz down. Alt, Alt Right keystrokes and button move RX frequency to 1 Hz up. Alt Down keystroke and lt lt button move RX frequency to 5 Hz down. Alt Up keystroke and button move RX frequency to 5 Hz up. These screen buttons can be used for TX frequency changing also. TX sound frequency is changed if right mouse button is used or Ctrl key is pressed. The Setup View Logarithmic spectrogram scale option or Alt Z hotkey switches the spectrogram window between a linear or logarithmic scale. Analogously, the Setup View Logarithmic oscillogram scale option or Ctrl Z hotkey switches the oscillogram scale. The logarithmic scale is usually more convenient, but it uses more computer resources. The SQL button turns squelch on. The number to the left of the SQL button determines the squelch threshold. When squelch is switched on, the horizontal red line shows the squelch threshold. The Setup View Spectrogram as waterfall option or Alt W hotkey switch spectrogram view to waterfall mode and vice versa. Waterfall colors can be customized via Setup Waterfall options. The Zoom menu and Alt 1. Alt 5 hotkeys change frequency scale of spectrogram and waterfall. To move a visible part of spectrogram or waterfall to left or right drag it by mouse with Alt key down. A phase indicator can be used for fine tuning in PSK modes. It can be switched on or off via Setup View Show phase indicator in PSK option or Alt I hotkey. In ideal conditions you see immovable or slow rotating line there. Faster rotation means more frequency error. The third from top window shows an oscillogram of the decoded signal. The received text is displayed on the second from top window. When the RX buffer has grown to about 2. B, part of the data is moved into an invisible buffer. The AFC button auto frequency control adjusts the long red lines working frequencies to the closest peak frequencies. The numbers to the left of the AFC button determines the limits of AFC. The first number is local deviation in hertzs, i. Second number is global deviation in hertzs, i. User selected frequencies are shown at spectrogram by short red lines. When the option Setup Interface AFC at mouse click is selected True. TTY 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 Tx. AFC button nets the TX central frequency to the RX central frequency. The mode of automatic transceiver frequency control can be switched on at the Setup Tuning page. 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. Tuning is made via Omni Rig software interface http www. Standard Galactic Alphabet Font here. The Hamport software http www. The option Follow VFOB by VFOA with offset is located at this page also. When it is checked, VFOB frequency is tuning to VFOA frequency with given offset automatically. This option is useful if transceiver can not use narrow band filters in SSB mode. For example, you can receive in CW or FSK mode with VFOA and transmit in SSB with VFOB. The Use Rig box is used to select a rig controlled by Omni Rig. The Show Omni Rig Setup button is used to activate Omni Rig setup dialog. With the ReverseNormal button on Normal, mark is the higher RTTY tone in Reverse space is the higher tone. This button does NOT alter the signal polarity of FSK output of the COM port. In QPSK mode this button is used to select normal or inverted QPSK. In BPSK and AX2. 5 modes the button position is have not meaning. The TX button switches the transmitter on. The program transmits characters entered into the bottom window. During transmission, sent symbols change their color and are copied into the Sent window second from bottom. When the option Setup View Show sent symbols in RX window is selected, sent text is shown in the RX window also. Transmitted text is deleted from the Input window after the Line Feed character is transmitted. The Pause button stops transmission of previously entered text. The transmitter is left on and continuous sequence of Letter shift characters in RTTY mode or another idle characters is transmitted. If the Setup Interface Continuous carrier while idle option is enabled, True. TTY doesnt use idle symbols in RTTY and ASCII modes. A continuous carrier is transmitted in pauses in this case. If the Setup Interface Send whole word only menu option is selected, True. TTY doesnt start to transmit the next word until a space, right square bracket or line feed is entered. The Mode menu selects a working mode RTTY, ASCII 7, ACSII 8, AMTOR FEC, BPSK3. Signal speed and frequency shift are selected via the Speed and Shift menus respectively. Take into consideration that when you select RTTY or AMTOR mode via the Mode menu, speed and shift are reset to the default values 4. Baud1. 70 Hz and 1. Baud1. 70 Hz respectively. User can select optimal or wide filters via Filters menu in RTTY and ASCII modes. Wide filters can be useful to decoding signals corrupted by polar flutter. Use optimal filters in all another cases. When AMTOR FEC mode is selected, you can decode SITOR B and NAVTEX transmissions also, because they are in fact the same mode. There are options Fast Sync and Normal Sync in this mode. Spek Free Acoustic Spectrum Analyzer Spectrogram Viewer. Spek IPA spk, bacon in Dutch helps to analyse your audio files by showing their spectrogram. Spek is free software available for Unix, Windows and Mac OS X. Features. Supports all popular lossy and lossless audio file formats thanks to the FFmpeg libraries. Ultra fast signal processing, uses multiple threads to further speed up the analysis. Shows the codec name and the audio signal parameters. Allows to save the spectrogram as an image file. Drag and drop support associates with common audio file formats. Auto fitting time, frequency and spectral density rulers. Adjustable spectral density range. Translated into 1. Screenshots. Download. News Contribute. Spek is free and open source software licensed under GPLv. The project is written in C, the code is available on Git. Microsoft - Office-2007 - Ultimate Keys. How To Crack Camfrog. Hub. Report bugs and request new features on the issue tracker. Translation is done via Transifex. Dont hesitate to translate Spek into a new language or to improve existing translations. Mailing listsspek announce. A low volume mailing list with release announcements and other project updates. Discussion and questions about translating Spek. User questions and community support.