diff --git a/mmeowlink/mmtune.py b/mmeowlink/mmtune.py
index 18b4d38..d8f8619 100755
--- a/mmeowlink/mmtune.py
+++ b/mmeowlink/mmtune.py
@@ -7,8 +7,8 @@
 
 class MMTune:
   FREQ_RANGES = {
-    'US': { 'start': 916.5, 'end': 916.9, 'default': 916.630 },
-    'WW': { 'start': 867.5, 'end': 868.5, 'default': 868.328 }
+    'US': { 'start': 916.300, 'end': 916.900, 'default': 916.630 },
+    'WW': { 'start': 868.150, 'end': 868.750, 'default': 868.328 }
   }
 
   def __init__(self, link, pumpserial, radio_locale='US'):
@@ -24,28 +24,11 @@ def __init__(self, link, pumpserial, radio_locale='US'):
     self.scan_range = self.FREQ_RANGES[self.radio_locale]
 
   def run(self):
-
-    ############################################################################
-    # Commented these out as they may be causing issues with certain pumps:
-    ############################################################################
-    # self.link.update_register(SubgRfspyLink.REG_MDMCFG4, 0xa9)
-    #
-    # # Sometimes getting lower ber with 0x07 here (default is 0x03)
-    # self.link.update_register(SubgRfspyLink.REG_AGCCTRL2, 0x07)
-    #
-    # self.link.update_register(SubgRfspyLink.REG_AGCCTRL1, 0x40)
-    #
-    # # With rx bw > 101kzHZ, this should be 0xB6, otherwise 0x56
-    # self.link.update_register(SubgRfspyLink.REG_FREND1, 0x56)
-    #
-    # # default (0x91) seems to work best
-    # #self.link.update_register(SubgRfspyLink.REG_AGCCTRL0, 0x91)
-
     #print "waking..."
     self.wakeup()
 
     #print "scanning..."
-    results = self.scan_over_freq(self.scan_range['start'], self.scan_range['end'], 20)
+    results = self.scan_over_freq(self.scan_range['start'], self.scan_range['end'], 25)
     results_sorted = list(reversed(sorted(results, key=lambda x: x[1:])))
 
     set_freq = self.scan_range['default']