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[Commit-gnuradio] r7865 - gnuradio/trunk/gr-utils/src/python
From: |
jcorgan |
Subject: |
[Commit-gnuradio] r7865 - gnuradio/trunk/gr-utils/src/python |
Date: |
Thu, 28 Feb 2008 12:40:15 -0700 (MST) |
Author: jcorgan
Date: 2008-02-28 12:40:12 -0700 (Thu, 28 Feb 2008)
New Revision: 7865
Modified:
gnuradio/trunk/gr-utils/src/python/usrp_fft.py
Log:
Make usrp_fft.py reference scale configurable.
Default is 14390, which is the ADC full scale * CORDIC gain
in the FPGA DDC.
Modified: gnuradio/trunk/gr-utils/src/python/usrp_fft.py
===================================================================
--- gnuradio/trunk/gr-utils/src/python/usrp_fft.py 2008-02-28 19:35:18 UTC
(rev 7864)
+++ gnuradio/trunk/gr-utils/src/python/usrp_fft.py 2008-02-28 19:40:12 UTC
(rev 7865)
@@ -75,6 +75,8 @@
help="Enable oscilloscope display")
parser.add_option("", "--avg-alpha", type="eng_float", default=1e-1,
help="Set fftsink averaging factor,
default=[%default]")
+ parser.add_option("", "--ref-scale", type="eng_float", default=13490.0,
+ help="Set dBFS=0dB input value, default=[%default]")
(options, args) = parser.parse_args()
if len(args) != 0:
parser.print_help()
@@ -118,7 +120,7 @@
self.scope = scopesink2.scope_sink_c(panel, sample_rate=input_rate)
else:
self.scope = fftsink2.fft_sink_c (panel, fft_size=1024,
sample_rate=input_rate,
- ref_scale=32768.0, ref_level=0.0,
y_divs = 10,
+ ref_scale=options.ref_scale,
ref_level=0.0, y_divs = 10,
avg_alpha=options.avg_alpha)
self.connect(self.u, self.scope)
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