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<?xml version="1.0"?>
<!--
Copyright 2011 Free Software Foundation, Inc.
This file is part of GNU Radio
GNU Radio is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3, or (at your option)
any later version.
GNU Radio is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with GNU Radio; see the file COPYING. If not, write to
the Free Software Foundation, Inc., 51 Franklin Street,
Boston, MA 02110-1301, USA.
-->
<!--
###################################################
##OFDM Insert Preamble
###################################################
-->
<block>
<name>OFDM Insert Preamble</name>
<key>digital_ofdm_insert_preamble</key>
<import>from gnuradio import digital</import>
<make>digital.ofdm_insert_preamble($fft_length, $preamble)</make>
<param>
<name>FFT Length</name>
<key>fft_length</key>
<type>int</type>
</param>
<param>
<name>Preamble</name>
<key>preamble</key>
<type>raw</type>
</param>
<sink>
<name>in</name>
<type>complex</type>
<vlen>$fft_length</vlen>
</sink>
<sink>
<name>flag</name>
<type>byte</type>
<optional>1</optional>
</sink>
<source>
<name>out</name>
<type>complex</type>
<vlen>$fft_length</vlen>
</source>
<source>
<name>flag</name>
<type>byte</type>
<optional>1</optional>
</source>
</block>
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