diff --git a/src/visual/ScopeCanvas.cpp b/src/visual/ScopeCanvas.cpp
index a7d7ce9..442f476 100644
--- a/src/visual/ScopeCanvas.cpp
+++ b/src/visual/ScopeCanvas.cpp
@@ -55,13 +55,13 @@ void ScopeCanvas::OnKeyDown(wxKeyEvent& event) {
     switch (event.GetKeyCode()) {
     case WXK_RIGHT:
         freq = wxGetApp().getFrequency();
-        freq += 100000;
+        freq += SRATE/2;
         wxGetApp().setFrequency(freq);
         ((wxFrame*) parent)->GetStatusBar()->SetStatusText(wxString::Format(wxT("Set center frequency: %i"), freq));
         break;
     case WXK_LEFT:
         freq = wxGetApp().getFrequency();
-        freq -= 100000;
+        freq -= SRATE/2;
         wxGetApp().setFrequency(freq);
         ((wxFrame*) parent)->GetStatusBar()->SetStatusText(wxString::Format(wxT("Set center frequency: %i"), freq));
         break;
diff --git a/src/visual/SpectrumCanvas.cpp b/src/visual/SpectrumCanvas.cpp
index d949b18..223abe1 100644
--- a/src/visual/SpectrumCanvas.cpp
+++ b/src/visual/SpectrumCanvas.cpp
@@ -73,13 +73,13 @@ void SpectrumCanvas::OnKeyDown(wxKeyEvent& event) {
     switch (event.GetKeyCode()) {
     case WXK_RIGHT:
         freq = wxGetApp().getFrequency();
-        freq += 100000;
+        freq += SRATE/2;
         wxGetApp().setFrequency(freq);
         ((wxFrame*) parent)->GetStatusBar()->SetStatusText(wxString::Format(wxT("Set center frequency: %i"), freq));
         break;
     case WXK_LEFT:
         freq = wxGetApp().getFrequency();
-        freq -= 100000;
+        freq -= SRATE/2;
         wxGetApp().setFrequency(freq);
         ((wxFrame*) parent)->GetStatusBar()->SetStatusText(wxString::Format(wxT("Set center frequency: %i"), freq));
         break;
diff --git a/src/visual/WaterfallCanvas.cpp b/src/visual/WaterfallCanvas.cpp
index cdf89ff..a18f38b 100644
--- a/src/visual/WaterfallCanvas.cpp
+++ b/src/visual/WaterfallCanvas.cpp
@@ -85,13 +85,13 @@ void WaterfallCanvas::OnKeyDown(wxKeyEvent& event) {
     switch (event.GetKeyCode()) {
     case WXK_RIGHT:
         freq = wxGetApp().getFrequency();
-        freq += 100000;
+        freq += SRATE/2;
         wxGetApp().setFrequency(freq);
         ((wxFrame*) parent)->GetStatusBar()->SetStatusText(wxString::Format(wxT("Set center frequency: %i"), freq));
         break;
     case WXK_LEFT:
         freq = wxGetApp().getFrequency();
-        freq -= 100000;
+        freq -= SRATE/2;
         wxGetApp().setFrequency(freq);
         ((wxFrame*) parent)->GetStatusBar()->SetStatusText(wxString::Format(wxT("Set center frequency: %i"), freq));
         break;