Comments - IMPROVE YOUR QRQ CW COPY ON YOUR COMPUTER WITH THIS FREE SOFTWARE SETUP - QRQcw2024-03-28T22:15:02Zhttps://qrqcwnet.ning.com/profiles/comment/feed?attachedTo=1993813%3ABlogPost%3A18514&xn_auth=noAnother unique qrm at qrq spe…tag:qrqcwnet.ning.com,2013-03-24:1993813:Comment:194302013-03-24T19:54:34.257ZChuck aa0hwhttps://qrqcwnet.ning.com/profile/chase
<p><em><strong>Another unique qrm at qrq speeds above 70 wpm is BASS NOTE DRONING</strong></em></p>
<p></p>
<p><span>BASS NOTE DRONING of qrq cw above 70 wpm.</span><br></br><br></br><span>Above 70 wpm, in spite of passing the qrq cw audio through a good cw</span><br></br><span>bandpass filter, a significant amount of bass note droning was heard while listening with headphones. The impact of each cw element has enough energy by itself, even after going through a narrow cw bandpass audio filter, to…</span></p>
<p><em><strong>Another unique qrm at qrq speeds above 70 wpm is BASS NOTE DRONING</strong></em></p>
<p></p>
<p><span>BASS NOTE DRONING of qrq cw above 70 wpm.</span><br/><br/><span>Above 70 wpm, in spite of passing the qrq cw audio through a good cw</span><br/><span>bandpass filter, a significant amount of bass note droning was heard while listening with headphones. The impact of each cw element has enough energy by itself, even after going through a narrow cw bandpass audio filter, to energize a bass note droning from the collective strumming effect of the cw elements themselves. Here are the bass note frequencies vs speed, that I heard, and measured, while using my headphones:</span><br/><span>70wpm ~ 31 hertz</span><br/><span>80wpm ~ 35 hertz</span><br/><span>90wpm ~ 39 hertz</span><br/><span>100wpm ~ 43 hertz</span><br/><span>110wpm ~ 47 hertz</span><br/><span>120wpm ~ 51 hertz</span><br/><span>130wpm ~ 55 hertz</span><br/><span>140wpm ~ 59 hertz</span><br/><span>150wpm ~ 63 hertz</span></p>
<p></p>
<p><span>these frequencies were measured while using typical stereo circumaural headphones.</span></p>
<p><span>- Maybe someone can run this same test while using audio bandwidth restricted headphones and report their findings -</span></p>
<p></p>