div class=trans-pagebutton class=gotoPage data-page=1Page 1button div class=trans-imageimg data-url=documentso-you-can-listen-the-soohe-tone-make-a-double-beat-between-these-two-signalshtmlpage=1 data-page=1 class=trans-thumb lazyload alt=Page 1: · So you can listen the SOOHE tone make a double beat between these two signals Only on please set the mode switch USB position Then change the mode switch to CW position you loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader034fdocumentsinreader034viewer20220421205e99e6d28876237e3e6fb0afhtml5thumbnails1jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=2Page 2button div class=trans-imageimg data-url=documentso-you-can-listen-the-soohe-tone-make-a-double-beat-between-these-two-signalshtmlpage=2 data-page=2 class=trans-thumb lazyload alt=Page 2: · So you can listen the SOOHE tone make a double beat between these two signals Only on please set the mode switch USB position Then change the mode switch to CW position you loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII= data-src=https:reader034fdocumentsinreader034viewer20220421205e99e6d28876237e3e6fb0afhtml5thumbnails2jpg width=140 height=200 divdivdiv class=trans-pagebutton class=gotoPage data-page=3Page 3button div class=trans-imageimg data-url=documentso-you-can-listen-the-soohe-tone-make-a-double-beat-between-these-two-signalshtmlpage=3 data-page=3 class=trans-thumb lazyload alt=Page 3: · So you can listen the SOOHE tone make a double beat between these two signals Only on please set the mode switch USB position Then change the mode switch to CW position you loading=lazy src=data:imagegifbase64iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAQAAAC1HAwCAAAAC0lEQVR42mM8Uw8AAh0BTZud3BwAAAAASUVORK5CYII=...