Recent content by djcarpentier

Re-soldered everything with short leads. Exactly the same output. Don't think its worth investing more time and money in parts. Time for plan B.

Just made a measurement with my Focusrite Get a flat line value of 2.87 ohms. Put in my second precision 100 ohm 0.1% resistor and now i get a value of 102.8 ohms. Somehow my measurement rig has an impedance of just under 3 ohms. Frustrating. I guess i can resolder everything, but i fail to see...

Ahh. Will try that and let you know.

The longer one is to the sound card output. Short one is input. Then there are the two speaker leads that are fairly long ~ 1m. R sense measures at 99.7 ohms. This is about right as it is supposed to be a 100 ohm 0.1% resistor. Going to hook up my Focusrite Forte with this system and see what...

I followed the impedance design page for a standard measurement system. Just running it off my PC's onboard audio ins and outs. I do have an audio interface, but haven't tried to use it yet. I have very good electrical knowledge, so i'm thinking this has something to do with my onboard sound...

REW 5.19. Yes i run the impedance calibration and it seems to come out ok.

Hi all, First post here. I have a set up with a 100 ohm 0.1% resistor and after calibration i go to make a measurement of my test lead resistance. I consistently get a flat line value of 3.2 ohms. This doesn't make much sense. I really want to use REW for calculating T/S parameters. Does...