It is a truth universally acknowledged, that a
single ham in possession of a good fortune, must be in want of a oscilloscope. At Hamvention, I bought slightly more of an oscilloscope than I needed, a Rigol DS1102E.
Surprsingly clean output here.
Ahh, the notorious APC “squelch-fart” noise. The poor little speaker hasn’t a chance of reproducing this, so it collapses into spasms.
A noisier high frequency signal from the APC.
The Rigol is pretty easy to use. These images were captured via its USB screen dump feature; no need for an oscilloscope camera here!