Not familiar with this cable, but it looks like it connects K1 to CTIA headphones/mic pinout with attenuators and DC/decoupling to bring levels from headphones to mic levels. Similar + PTT implementation can be found in Digirig’s PTT cable:
Not familiar with this cable, but it looks like it connects K1 to CTIA headphones/mic pinout with attenuators and DC/decoupling to bring levels from headphones to mic levels. Similar + PTT implementation can be found in Digirig’s PTT cable: