Wiring a microphone for handheld

[VK2CSW]

While looking into a minor issue with (audio) data between a radio -> DIY Isolation Interface -> sound card I had to reacquaint myself with the specifications of different microphone, line and aux audio levels.

While doing this I came across this article which may (or may not) shed some light on the issue in this thread. TBH an audio oscilloscope is probably needed to measure the values but here it is anyway...

https://www.sweetwater.com/insync/unders...udio-gear/