OK, so I’ve run RTL_TEST -P on both of the dongles that I have on hand. Can someone explain the results and what I am suppose to do with them to correct any error factor?

Dongle #1 tested for 30 minutes.

cumulative PPM: ~87

Dongle #2 tested for 30 minutes.

cumulative PPM: ~92

And in both case when I exited, Samples per million lost: 0

Much thanks in advance, Tom