![]() ![]() Or repaired and it still works perfectly. These sitting on one of my equipment shelves. I thought I’d list, in no particular order, some of my favorite Several years with receivers, including a Harman Kardon Nocturne, I graduated Rock and roll, soon followed by college radio stations such as WFMU. Know that listening to Murray the K (the fifth Beatle) was my introduction to Point to the radio, FM radio, as their first electronic connection to music. Music a majority say something like, “I remember listening to the radio underĬovers (so my parents wouldn’t hear) after I was supposed to be asleep…” Most I ask folks of my generation about their earliest recollections of listening to – wrong signal level of firstly checked frequency in spectral scanįor more info and download check XDR-GTK page.Twitter Facebook Email Print LinkedIn Pinterest SMS WhatsApp – PI code decoding from a previously tuned frequency – tune button replaced with “hold left button and sweep” ![]() – selectable profiles (-c option with a filename) – RDS PS mode and spectral scan keyboard shortcut – selectable log and screenshot directory – hide window dectorations (move window with shift + mouse) – compact mode (triple click on a window to toggle) – count signal samples and provide average level (as tooltip) – red color for active rotation direction, orange for waiting – improved squelch (both signal & stereo) – forced mono option (right click on ST indicator) – external event handling (physical button connected to Arduino board) The mono reception can be forced now by clicking right mouse button on the stereo indicator. To toggle it triple click with left mouse button on the window area. There is also a new compact mode which hides two horizontal lines with buttons. Statusbar with clock and new interference detectors can be hidden as well in settings. In order to move the window without them hold Shift, left button and use mouse to set new position. First of all it is possible to hide window decorations in settings. There are new options to make the application as small as possible. The configuration file can be changed with “-c” command line option. The configuration handling has been also rewritten. Now it is saved to …\Local Settings\Application Data\xdr-gtk (Windows) or ~/.config/xdr-gtk/ (Linux) directory by default. The frequency and signal value of a focused point is now displayed as an overlay on the spectrum. Currently tuned frequency can be optionally marked with a thicker white line. It is possible to toggle a vertical frequency mark with a right button. In order to tune to a frequency click or hold left mouse button. The signal spectrum is much smoother and a horizontal signal level grid is now also included. Hold function keeps current scan as a white curve. Peak hold function displays the highest levels in the background of a current scan results. The most significant change in this release is a rewritten spectral scan feature. It may be useful for observing the adjacent channels (☑00-200kHz) with a sensitivity around -30dBc. This detector is less reliable than CCI and is modulation dependent. The ACI is an indication of the adjacent interference based on noise level in MPX signal above RDS subcarrier. With IF+ there will be no improvement at all. The CCI value may decrease by few percents on a weak signals while using RF gain boost, which slightly lowers the tuner noise figure, but may also increase due to overload of the RF input on very strong signals. The CCI detector, based on a multipath meter, is a good indication of interference on a channel. The strongest signal level doesn’t always mean the best quality, as other unwanted stations on the same frequency may interfere more with an antenna set on the exact azimuth. The main window contains new interference detectors: CCI (co-channel) and ACI (adjacent channel) which make the antenna pointing easier for the best signal to interference and noise ratio. As usually, XDR-I2C upgrade to the latest version () is also required. I am pleased to announce that the long-awaited 1.0 version of XDR-GTK has just been released. ![]()
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