I/Q Y Axis scaling

[sajdenman]

Hi Guys

I’m trying to use the I/Q area of the Zero Span mode (with a BB60C connected) on Spike.
The axis scaling is really irritating – constant rescaling (due to tiny amounts of noise) _AND , even worse, is that the scaling only applies to positive values – if I have I/Q both in negative values, I see nothing as the scaling reduces to +-0.04 sort of region, despite the signal being between -0 and -1
I may be missing something, but I can’t see any way to fix the scaling on the axis – is this doable?

Cheers

[Andrew]

Hi Sajdenman,

Unfortunately scaling the y-axis is not currently possible. This is something we are looking to address in the near future. Based on your post, I believe you have properly described its current behavior. I apologize for the inconvenience.

Regards,
A.J.

[sajdenman]

Ok, Thanks for the info – just to check – is it also by design that the auto-scaling on the Y axis only works on +ve I/Q values.
Therefore we cannot see data when
I AND Q <0
I<0 AND MOD I > Q
Q<0 AND MOD Q > I

As per this image (apologies for poor quality, Just reformatted pc so quick paint job rather than anything proper!)

[Andrew]

Hello Sajdenman,

It appears to currently be working this way. I apologize for the inconvenience. I will see if I can fix this for the next release.

Regards,
A.J.

[Author]

Posts