diff --git a/apps/grgsm_decode b/apps/grgsm_decode
index abdc56b..698cf80 100755
--- a/apps/grgsm_decode
+++ b/apps/grgsm_decode
@@ -277,7 +277,7 @@
                                   + ", ".join(grgsm.arfcn.get_bands()) + "."
                                   + "If no band is specified, it will be determined automatically, defaulting to 0.")
     cfile_options.add_option("-s", "--samp-rate", dest="samp_rate", type="eng_float",
-                             default=eng_notation.num_to_str(2e6),
+                             default=eng_notation.num_to_str(1e6),
                              help="Sample rate of cfile capture [default=%default]")
     parser.add_option_group(cfile_options)
 
diff --git a/apps/helpers/grgsm_capture.py b/apps/helpers/grgsm_capture.py
index f5d2651..51c13ac 100755
--- a/apps/helpers/grgsm_capture.py
+++ b/apps/helpers/grgsm_capture.py
@@ -193,7 +193,7 @@
                       help="Set gain [default=%default]")
     
     parser.add_option("-s", "--samp-rate", dest="samp_rate", type="eng_float", 
-                      default=eng_notation.num_to_str(2000000.052982),
+                      default=eng_notation.num_to_str(2000000),
                       help="Set samp_rate [default=%default]")
     
     parser.add_option("-p", "--ppm", dest="ppm", type="intx", default=0,
diff --git a/apps/helpers/grgsm_channelize.py b/apps/helpers/grgsm_channelize.py
index f7f0100..146bb8f 100755
--- a/apps/helpers/grgsm_channelize.py
+++ b/apps/helpers/grgsm_channelize.py
@@ -43,10 +43,10 @@
 
 EXTRA_HELP = """
 Example usage:
-grgsm_channelize.py -f my_wideband_capture.cfile -c 925.2e6 990 991 992 993 994 995 1019 1020 1021 1022 1023
+grgsm_channelize.py -c my_wideband_capture.cfile -f 925.2e6 990 991 992 993 994 995 1019 1020 1021 1022 1023
 
 The above example will channelize my_wideband_capture.cfile, in this case a cfile captured at
-925.2 MHz centered (ARFCN 975) and 20 Msps. As a result, 12 files will be generated for
+925.2 MHz centered (ARFCN 975) and 2 Msps. As a result, 12 files will be generated for
 ARFCNs 975 - 1023 at 1 Msps each.
 """
 
@@ -117,7 +117,7 @@
     parser = ArgumentParser(formatter_class=RawDescriptionHelpFormatter, description='Split wideband a GSM capture into seperate files per ARFCN.', add_help=True, epilog=EXTRA_HELP)
     parser.add_argument(dest="channel", type=int, nargs='+',
         help="List of ARFCNs")
-    parser.add_argument("-s", "--samp-rate", dest="samp_rate", type=eng_float, default=eng_notation.num_to_str(2e7),
+    parser.add_argument("-s", "--samp-rate", dest="samp_rate", type=eng_float, default=eng_notation.num_to_str(2e6),
         help="Sample rate of the wideband capture file [default=%(default)s]")
     parser.add_argument("-f", "--fc", dest="fc", type=eng_float, default=eng_notation.num_to_str(935e6), required=True,
         help="Carrier frequency in Hz [default=%(default)s]")