You don't need an elaborate USB sound card, but using one avoids
making mistakes.
You do if you use the I/Q port and a laptop as most mic inputs on
laptops are mono.
so using a usb sound card should give you stereo mic inpu for i/q audio.
If you check and make
sure the usb has stersio mic port some do some dont.
--
R.Neese
KB3VGW
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