How do I earn emblems and where can I spend them? I heard you can get mk XI gear for them?

Earn them, I'm not sure. Spend them, at Earth Space Dock. Speak to Lieutenant Carei at the center of the map. You can use this Earth Space Dock interactive map to find him.

Thanks mate but I gave up my fed char long ago, do you perhaps know where the klingon dude is?

The computer in Qo'noS, lower right corner. Here is theQo'noS interactive map

You might also find this item database useful.

thanks once more.

Thank you very much for those links!

It is infinitely stupid that we should have to go to our home system to spend these emblems. I don't want to spend 20 minutes going to/from quest areas just to purchase an item.

There are way too many time sinks in this d*&n game as it is.

Just save up and go when you're ready. Using transwarp for instant travel.

I have found using the 'change instant' feature helpful in traveling. If I am in the far distant corner of the home galaxy and I want to go to Sol I can change instants and be at the Sol solar syatem. Hope this helps.