The Series 7 DPO oscilloscope from Tektronix is the company’s first new high-end model in years. It uses an optical port to transfer data faster than anything we’ve seen.

When you’re hunting for a signal with your oscilloscope, the stronger it is, the better. If it’s weak, you might struggle to tease it out from other interference, or even from the noise floor itself.

I recently purchased a new oscilloscope for home use. It’s a 250 MHz scope, but I was curious what the actual -3dB frequency was as most scopes have a bit more upper end margin than their published ...