e receiver functions (based on rf)</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">rfstream</span> <span class="o">=</span> <span class="n">rfstream</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">preonset</span> <span class="o">=</span> <span class="mi">10</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">HSed</span> <span class="o">=</span> <span class="mf">0.8</span>
<span class="gp">&gt;&gt;&gt; </span><span class="n">VpSed</span> <span class="o">=</span> <span class="m