From 2c33773189fe8a5db39979181a02223e14363e97 Mon Sep 17 00:00:00 2001
From: "Charles J. Cliffe" <cj@cubicproductions.com>
Date: Sat, 21 Feb 2015 23:25:40 -0500
Subject: [PATCH] FFT resolution/zoom tweak

---
 src/AppFrame.cpp          | 6 +++---
 src/CubicSDR.cpp          | 2 +-
 src/sdr/SDRPostThread.cpp | 2 +-
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/src/AppFrame.cpp b/src/AppFrame.cpp
index 7129e92..0b68e56 100644
--- a/src/AppFrame.cpp
+++ b/src/AppFrame.cpp
@@ -370,7 +370,7 @@ void AppFrame::OnIdle(wxIdleEvent& event) {
         }
         if (demodWaterfallCanvas->getDragState() == WaterfallCanvas::WF_DRAG_NONE) {
             long long centerFreq = demod->getFrequency();
-            unsigned int demodBw = (unsigned int) ceil((float) demod->getBandwidth() * 2.5);
+            unsigned int demodBw = (unsigned int) ceil((float) demod->getBandwidth() * 2.25);
 
             if (demod->getDemodulatorType() == DEMOD_TYPE_USB) {
                 demodBw /= 2;
@@ -385,8 +385,8 @@ void AppFrame::OnIdle(wxIdleEvent& event) {
             if (demodBw > wxGetApp().getSampleRate() / 2) {
                 demodBw = wxGetApp().getSampleRate() / 2;
             }
-            if (demodBw < 30000) {
-                demodBw = 30000;
+            if (demodBw < 20000) {
+                demodBw = 20000;
             }
 
             if (centerFreq != demodWaterfallCanvas->getCenterFrequency()) {
diff --git a/src/CubicSDR.cpp b/src/CubicSDR.cpp
index 3ae5cfa..32e42d1 100644
--- a/src/CubicSDR.cpp
+++ b/src/CubicSDR.cpp
@@ -29,7 +29,7 @@ bool CubicSDR::OnInit() {
     sdrThread = new SDRThread(threadCmdQueueSDR);
 
     sdrPostThread = new SDRPostThread();
-    sdrPostThread->setNumVisSamples(16384);
+    sdrPostThread->setNumVisSamples(16384*2);
 
     iqPostDataQueue = new SDRThreadIQDataQueue;
     iqVisualQueue = new DemodulatorThreadInputQueue;
diff --git a/src/sdr/SDRPostThread.cpp b/src/sdr/SDRPostThread.cpp
index 81c9ef4..34b8942 100644
--- a/src/sdr/SDRPostThread.cpp
+++ b/src/sdr/SDRPostThread.cpp
@@ -6,7 +6,7 @@
 #include <deque>
 
 SDRPostThread::SDRPostThread() :
-        iqDataOutQueue(NULL), iqDataInQueue(NULL), iqVisualQueue(NULL), terminated(false), dcFilter(NULL), num_vis_samples(16384) {
+        iqDataOutQueue(NULL), iqDataInQueue(NULL), iqVisualQueue(NULL), terminated(false), dcFilter(NULL), num_vis_samples(16384*2) {
 
     // create a lookup table
     for (unsigned int i = 0; i <= 0xffff; i++) {