From 5ede0e2b1457d7c28ad29c5f2322305621a3b26a Mon Sep 17 00:00:00 2001
From: jcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5>
Date: Thu, 28 Feb 2008 19:03:55 +0000
Subject: Added reference scaling to fftsink2. Default behavior is unchanged.
The new parameter 'ref_scale', defaulting to 1.0, represents a 0 dB
y-axis value.
Updated usrp_fft.py to display dBFS by setting ref_scale to 32768.0
and ref_level to 0. This results in the full 100 dB of dynamic range
being displayed.
Updated some gnuradio-examples to use the new parameter.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@7863 221aa14e-8319-0410-a670-987f0aec2ac5
---
gnuradio-examples/python/usrp/usrp_wxapt_rcv.py | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
(limited to 'gnuradio-examples/python/usrp/usrp_wxapt_rcv.py')
diff --git a/gnuradio-examples/python/usrp/usrp_wxapt_rcv.py b/gnuradio-examples/python/usrp/usrp_wxapt_rcv.py
index 983e3ec98d..11b8c431f2 100755
--- a/gnuradio-examples/python/usrp/usrp_wxapt_rcv.py
+++ b/gnuradio-examples/python/usrp/usrp_wxapt_rcv.py
@@ -148,7 +148,8 @@ class wxapt_rx_block (stdgui2.std_top_block):
if 1:
self.src_fft = fftsink2.fft_sink_c (self.panel, title="Data from USRP",
- fft_size=512, sample_rate=usrp_rate)
+ fft_size=512, sample_rate=usrp_rate,
+ ref_scale=32768.0, ref_level=0, y_divs=12)
self.connect (self.u, self.src_fft)
vbox.Add (self.src_fft.win, 4, wx.EXPAND)
--
cgit v1.2.3