Hf Limit; D C C I I T Loading - Tektronix 11A34 User Reference Supplement

The llM4 attempts to maintain the user-selected offset volwge even though
theoffset rangechangesduetoachangeinsensitivity.
range of 1 mV/diWon to 10 V/division. A skcted offset of greater than one
volt is beyond the offset range for the most sensitive settings and will be reset to
one volt when the sensitivity is increased to any value between 995
1 mV/divisioh
Two four-pole (24 dB/octave)
for each llM4 channel. The purpose of the filters is to reduce the amplitude
of unwanted noise of inteference occurring at freqwncies above the frequency of
the signal of interest. The user has a choice of cut-off (-3 dB) frequencies,
either 20 MHz or 100 MHz, independently for each charmel. The bigger,
auxiliary trigger, and display signal bandwidths for a channel are always the
DC Circuit Loading
AC coupling capacitors are conneckd differently in the tlA52 and llA7l than
in the ltA32 and llA.34. Figure 2-l shows this difference.
bandwidth Limit (lowpass) filters are available
Figure 2-l. Location of AC couptig capacitors in plug-in amplifiers.
Position and Offset
llA34 2-3