<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>One is positive voltage and the other is negative during an active signal. With dsp you are just listening to the discriminator audio for the change.<br><br>Sent from my iPhone</div><div><br>On Sep 20, 2015, at 11:16 AM, Robert Newberry <<a href="mailto:N1XBM@amsat.org">N1XBM@amsat.org</a>> wrote:<br><br></div><blockquote type="cite"><div><p dir="ltr">I've gotten a lot of good info. I've got some work to do to figure this strange noise out.</p>
<p dir="ltr">I do have one question.</p>
<p dir="ltr">Ctcssfrom=dsp is what I use. I currently use a DMKURI. I've noticed the USB and USBinvert mention using a USB fob. Can anyone elaborate on the differences of these two?</p>
<p dir="ltr">N1XBM<br>
Apparare Scientor<br>
Paratus Communicare<br>
Allstar Node # 27086, 41540, 41812, 42086<br>
</p>
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