Amateur operators - Transmission Mode

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BM82557

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Aug 28, 2006
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Berkeley Co WV
I am used to "seeing" trunked and conventional transmissions on SDRSharp but haven't "seen" anything like this before. Copied two amateur stations conversing on 147.44 NFM this afternoon. Audio was loud and clear. Checkout the spiral trace in the screenshot attached to this post. What mode of transmission were they using?


 

prcguy

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Jun 30, 2006
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So Cal - Richardson, TX - Tewksbury, MA
I suspect its the "PL" tone showing up on your display.
prcguy

I am used to "seeing" trunked and conventional transmissions on SDRSharp but haven't "seen" anything like this before. Copied two amateur stations conversing on 147.44 NFM this afternoon. Audio was loud and clear. Checkout the spiral trace in the screenshot attached to this post. What mode of transmission were they using?


 
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