[Elecraft] Oscilloscopes

[Alan Bloom]

On Thu, 2009-05-21 at 11:31 -0500, Matt Palmer wrote:
> ... Since I grew up with a
> infiinium, i've never had a problem seeing and removing aliasing
> errors and others, but you have to have a decent sense for what to
> expect to see, and know which way to turn what knobs to make it look
> right. (like adjusting sample rate etc.)

One nice thing about the HP54600A is that, although the sample rate is
only 20 MHz, they dither the sample phase on successive sweeps, which
achieves a much higher effective sample rate.  You can view signals well
over 100 MHz without distortion.

That only works on repetitive signals.  For single-shot events you are
limited to the 20 MHz sample rate, which means signals over the 10 MHz
Nyquist frequency are aliased.

Al N1AL