diff --git a/qspectrumanalyzer/__main__.py b/qspectrumanalyzer/__main__.py
index e96cc24..0a2d33a 100755
--- a/qspectrumanalyzer/__main__.py
+++ b/qspectrumanalyzer/__main__.py
@@ -225,7 +225,7 @@ class QSpectrumAnalyzerMainWindow(QtGui.QMainWindow, Ui_QSpectrumAnalyzerMainWin
         settings = QtCore.QSettings()
         self.startFreqSpinBox.setValue(settings.value("start_freq", 88.0, float))
         self.stopFreqSpinBox.setValue(settings.value("stop_freq", 108.0, float))
-        self.binSizeSpinBox.setValue(settings.value("bin_size", 10.0, float))
+        self.binSizeSpinBox.setValue(settings.value("bin_size", 100.0, float))
         self.intervalSpinBox.setValue(settings.value("interval", 10.0, float))
         self.gainSpinBox.setValue(settings.value("gain", 0, int))
         self.ppmSpinBox.setValue(settings.value("ppm", 0, int))
diff --git a/qspectrumanalyzer/backend.py b/qspectrumanalyzer/backend.py
index 259db3b..62f76a1 100644
--- a/qspectrumanalyzer/backend.py
+++ b/qspectrumanalyzer/backend.py
@@ -65,6 +65,8 @@ class RtlPowerThread(RtlPowerBaseThread):
     def setup(self, start_freq, stop_freq, bin_size, interval=10.0, gain=-1,
               ppm=0, crop=0, single_shot=False, device_index=0, sample_rate=2560000):
         """Setup rtl_power params"""
+        if bin_size > 2800:
+            bin_size = 2800
         self.params = {
             "start_freq": start_freq,
             "stop_freq": stop_freq,
@@ -153,6 +155,8 @@ class RtlPowerFftwThread(RtlPowerBaseThread):
         min_overhang = sample_rate * overlap * 0.01
         hops = math.ceil((freq_range - min_overhang) / (sample_rate - min_overhang))
         overhang = (hops * sample_rate - freq_range) / (hops - 1) if hops > 1 else 0
+        if bin_size > 2800:
+            bin_size = 2800
         bins = math.ceil(sample_rate / (bin_size * 1e3))
         crop_freq = sample_rate * crop * 0.01
 
diff --git a/qspectrumanalyzer/qspectrumanalyzer.ui b/qspectrumanalyzer/qspectrumanalyzer.ui
index 238c9ab..2562645 100644
--- a/qspectrumanalyzer/qspectrumanalyzer.ui
+++ b/qspectrumanalyzer/qspectrumanalyzer.ui
@@ -265,10 +265,10 @@
         <number>3</number>
        </property>
        <property name="maximum">
-        <double>2800.000000000000000</double>
+        <double>5000.000000000000000</double>
        </property>
        <property name="value">
-        <double>10.000000000000000</double>
+        <double>100.000000000000000</double>
        </property>
       </widget>
      </item>
diff --git a/qspectrumanalyzer/ui_qspectrumanalyzer.py b/qspectrumanalyzer/ui_qspectrumanalyzer.py
index db72b62..115af1d 100644
--- a/qspectrumanalyzer/ui_qspectrumanalyzer.py
+++ b/qspectrumanalyzer/ui_qspectrumanalyzer.py
@@ -148,8 +148,8 @@ class Ui_QSpectrumAnalyzerMainWindow(object):
         self.binSizeSpinBox.setSizePolicy(sizePolicy)
         self.binSizeSpinBox.setAlignment(QtCore.Qt.AlignRight|QtCore.Qt.AlignTrailing|QtCore.Qt.AlignVCenter)
         self.binSizeSpinBox.setDecimals(3)
-        self.binSizeSpinBox.setMaximum(2800.0)
-        self.binSizeSpinBox.setProperty("value", 10.0)
+        self.binSizeSpinBox.setMaximum(5000.0)
+        self.binSizeSpinBox.setProperty("value", 100.0)
         self.binSizeSpinBox.setObjectName(_fromUtf8("binSizeSpinBox"))
         self.formLayout.setWidget(2, QtGui.QFormLayout.FieldRole, self.binSizeSpinBox)
         spacerItem1 = QtGui.QSpacerItem(20, 0, QtGui.QSizePolicy.Minimum, QtGui.QSizePolicy.Expanding)