UNI-T UPO3000E Series - Waveform Invert and Bias

UNI-T
UPO 3000E&UPO2000E Series Oscilloscope Programming Manual
CHANnel Command
This command is set channel independently, <n> take value as 1/2/3/4/5/6/7/8/9, it
presents {CH1/CH2/ CH3/ CH4/ MATH/ REF-A/ REF-B/ REF-C/ REF-D}.
:CHANnel<n>:BWLimit
 Command format：
:CHANnel<n>:BWLimit {{1|ON}|{0|OFF}}
:CHANnel<n>:BWLimit?
 Functional description：
Set bandwidth limit function is ON（turn on bandwidth limit to 20MHz，to reduce display noise）
or OFF（turn off bandwidth limit to achieve full display bandwidth）.
 Return format：
Query return 1 or 0，it presents ON or OFF.
 For example：
:CHAN1:BWL ON turn on channel 1 bandwidth limit.
:CHAN1:BWL? query return 1，it presents channel 1 bandwidth limit is turn on
:CHANnel<n>:COUPling
 Command format：
:CHANnel<n>:COUPling {DC|AC|GND}
:CHANnel<n>:COUPling?
 Functional description：
Set channel coupling mode, DC presents the AC and DC component of input signal; AC presents
blocked the DC component of input signal; GND presents cut off input signal.
 Return format：
Query AC, DC or GND.
 For example：
:CHAN1:COUP DC set channel 1 coupling mode as DC
:CHAN1:COUP? query return DC