K3-Twin digital modes newbie - help please

[vk3ga]

Hi,

I have the full K3-Twin setup consisting of K3S and K3-Mini with RRC-1258MkII’s.

I am trying to get the transmit audio from my PC to the Mini to enable me to use Fldigi and/or WSJT-X (receive works fine).

So I have an audio cable between my PC headphones output and the mic input on the Mini.

When I modulate the audio, the level seems too low, I can hardly hear it from the Mini speaker, and hardly any RF is coming out.

I have tried both stereo and mono cables.

What mode should I be in - USB?

Any other ideas?

73, Graham VK3GA

[vk3ga]

To answer my own question, I found the new K3S was delivered with MAIN:MIC SEL set to LINE-IN instead of RP.

All good now.