appearance in Settings → Channel Colours and in Settings → Chart
Settings.
2.4 Input Ranges
The USBscope50 supports 3 settings on its input attenuator. These
are then adjusted in the software to expand the range which user can
adjust by pressing the arrow keys.
The ranges at the BNC input depend on the type of scope probe
used:
A “x1” probe causes no signal attenuation and will result in nominal
full-scale input ranges. The bandwidth of x1 scope probes is
generally quite low (10’s of MHz) and the circuit being measured
will see a 1MegOhm load.
A “x10” probe causes a factor of ten signal attenuation. The
bandwidth of x10 scope probes is generally high (100’s of MHz)
and the circuit being measured will see a 10MegOhm load.
The USBscope50 also supports AC and DC coupling:
In AC coupling mode, the input signal is passed through a capacitor
prior to attenuation. The input bandwidth is around 3.4Hz up to
75MHz.
Elan Digital Systems Ltd.
15
USBscope50 USER’S GUIDE Iss8
