JAGUAR PRO ONLY
YAS is the abbreviation of "Yet Another Spectrum", and it is the cornerstone in JAGUAR’s ability to control MW band 24/7. YAS uses a quick "overview FFT" method which creates and saves MW area snapshots. This function is always on, it can't be disabled.
The YAS system saves a MW snapshot once a minute to a file called YAS.LOG. This file can be found in the folder where the recordings are being saved. Besides the YAS data, this file also contains TRACKER data (see TRACKBAR help for details).
The YAS.LOG data is displayed on YAS screens. The YAS screens are part of JAGUAR main screens, i.e. they are included in the WALLPAPER (W) rotation. The FFT used for YAS logging can pick up carrier peaks on most 9/10-kHz frequencies. However, some signals may not be detected by the FFT used. For instance, if there is a powerful carrier 1 kHz away, it may block the wanted signal and then this frequency may remain "blank" on the display. Another example: WWKB on AM 1520 is one of the most common US stations in Europe but it may not be visible in YAS because there is often a powerful carrier on 1521 kHz, and, as a result, the peak of WWKB will be blocked by the more powerful signal.
The YAS screen displays a coloured bar for each MW frequency, and the number of bars is determined by the selected frequency stepping (9/10/VFO). Using YAS makes it very easy to spot overseas openings fading up and down. Any overlapping 9/10-kHz frequencies can be hidden to make it easier to visualize true overseas openings. The conrast of YAS display is also customisable.
Overlapping frequencies in MW9 and MW10 removed:
YAS will reveal station sign-on/sign-off periods for strong stations as the colour bars will appear/disappear on the screen. It can also show daytimers signing on/off, e.g. resulting in a sudden change in the bar colour at sign-on/sign-off times.
Note that SCOPE (see SCOPE help for more details) uses the same FFT algorithm as YAS.
JAGUAR is designed for a 24/7 operation, and the YAS data collector is part and parcel of a MW DXer's toolkit.
The YAS screen can be invoked in the following ways:
• Pressing W (WALLPAPER) until you see YAS
• Pressing Y toggles your current display and the current YAS zoom level
• Pressing ALT-Y rotates the YAS LOG zoom levels
• Selecting YAS from TOP MENU (ENTER > TOP MENU > YAS)
The user can also leave the YAS screen using the methods above.
The YAS screen is zoomable, scrollable, draggable and clickable. This is all that you need for having the full control of the entire MW dial. The more you have recordings on your disk, the better!
ZOOMING. Just move the mouse cursor to the right edge of the YAS screen, and scroll with the mouse wheel. The YAS zoom level will vary from a detailed hour-level (12 hours) overview to a rougher two-week overview, and back. There are six different zoom levels.
One of the YAS LOG zoom levels (one week display):
SCROLLING. Move the mouse cursor to the YAS area and scroll YAS up/down with the mouse wheel. The YAS scroll can be used for scrolling days on the four highest day-zoom levels, but on the two lowest hour- zoom levels the control does not move across the day borders.
DRAGGING. The user can relocate the visible area of the screen up/down by dragging/dropping the canvas to the desired position. This function does not change the loaded data content but only moves the data to the desired position on the screen.
CLICKING. A true point-and-shoot service is available. When you move the mouse over the YAS screen, YAS will show a frequency-timestamp pair, based on the location of the mouse cursor. If the mouse cursor’s colour is bright, a recording exists at that time point, and you can jump to that frequency / time with a mouse click.
The 12-hour and 24-hour screens of YAS can also display JIX CURVES curves (see JIX help for details), i.e. red curves on both sides of the screen and their corresponding values within a red JIX ball.
The SLIDER has two important controls for customising the YAS display: STYLE (GAPS > FULL) and CONTRAST (spectrum colour strength). See SLIDER help for more details.