There are a lot of mouse functions available within the main Display:
· Positioning the cursor within the display while NaP3 has the focus will allow the mouse wheel to tune VFOA up or down in steps set by the Tuning
Step control (S Meter left upper). If the Sub RX is enabled the wheel will tune VFOB.
· A right click will reveal crosshairs and its position will make the blue figures at lower left display the level, the offset from VFOA and the frequency at
the crosshairs. A left click with the crosshair visible will shift VFOA to the frequency at the crosshair position. If the Sub RX is enabled, a second right
click will make red crosshairs appear and a left click will make VFOB jump to that frequency.
· Placing the cursor on the display with the left mouse button (no crosshairs showing) and holding a left click allows the whole display to be dragged
hgher or lower in frequency.
· A double click within the display will set the squelch threshold. This is not exact but a double click below a wanted signal will allow it through the
squelch (if turned on with the SQL: button). and above it will squelch the signal.
The mouse cursor will change appearance as it moves over the RX passband. With the MainRX, at either edge it appears as in the first picture below, and
between edges it appears like the second picture. The SubRX cursor always appears as in the first picture.
In the first case, holding down the left button, dragging whichever edge is selected and letting
go will reposition it. The result will change the NaP3 SDR
filtering. The same can be done for the hf edge of the filter.
In the second case, a hold and drag will move the entire RX filter, changing the SDR filtering
correspondingly. This applies to the SubRX if the first cursor
is showing.
Any change to the MainRX will simultaneously change SubRX filtering since this is a software clone of the MainRX.
A click on the leftmost/rightmost edge of the display in Fixed mode tuning (see Span Controls) will move the
displayed span down/up one displayed span
width (the orange number at the bottom of the display) until the move exceeds the available maximum span.
Last, there are the Spot labels. If these are showing, a left click on any of them will snap VFOA to that frequency.
It can get cluttered during a contest or
opening, so there is a label 'Stack Depth' which can be set in the Spot Telnet window (see Spots).
