R1.1
Copyright © 2016 SDRplay Limited
15
SDRuno User Manual
4.2.2
Wheel Edit Dials
These controls are easily recognizable as their background turn to purple as you place the cursor above
them; some examples are the notch filters BW and Freq. controls in the “RX EX Control” window. In order
to change the value of one of these controls, you must place the cursor inside it, then you have several
options (here is an example for a notch Freq. control
– actual steps depend upon the specific function):
-
Turning the mouse wheel will change the value in +/- 1 Hz steps
-
Turning the mouse wheel while pressing the SHIFT key will change the value in +/- 10 Hz steps
-
Turning the mouse wheel while pressing the CTRL key will change the value in +/- 0.1 Hz steps
-
Right-clicking will change the value in + 100 Hz steps
-
Left-clicking will change the value in - 100 Hz steps
-
Right-clicking while pressing the SHIFT key will change the value in + 1000 Hz steps
-
Left-clicking while pressing the SHIFT key will change the value in - 1000 Hz steps
-
Right-clicking while pressing the CTRL key will change nothing (not used in this case)
-
Left-clicking while pressing the CTRL key will change nothing (not used in this case)
4.3
The spectrum “quick browser”
Sometimes in a spectrum window you need a high zoom factor and at the same time you need also to
move quickly to another part of the spectrum; as the shown spectrum portion is small in comparison to the
total it would take ages to reach the wanted position dragging the frequency scale. SDRuno
has the “quick
browser” function:
-
Place the cursor inside the frequency scale.
-
Press the SHIFT key, a yellow overlay will appear on a portion of the scale: here the size and
position of this overlay indicates the currently shown portion of the spectrum relative to the total
(the whole frequency scale).
-
Click and drag the above overlay until the window shows the spectrum portion you wish.
4.4 SP2 filter adjustments
Besides the usual dragging of the selectivity filter edges (the red cursors) in the SP2 window there are
other some useful features available.
4.4.1
Asymmetrical adjustment
Usually in AM, SAM (DSB) and FM mode, dragging one edge has the effect of controlling simultaneously
the other in order to create a symmetric filter (around 0). In SDRuno the selectivity filter high and low
frequency parameters can be different. If you wish to set up an asymmetrical filter drag one edge while
pressing the CTRL key.
4.4.2
Pass band Tuning
Put the cursor in between the filter red cursors. Right-click and drag: this will have the effect of moving
both the filter edges (pass band tuning).
4.5 S-Meter function
In order to change the S-Meter function to FM tuning meter and vice versa, simply click on
it
.
