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Subject to change without notice
Contents
General information regarding the CE marking 2
150 MHz Mixed Signal CombiScope
®
HM1508-2 4
Specifi cations 5
Important hints 6
List of symbols used: 6
Positioning the instrument 6
Safety 6
Proper operation 6
CAT I 6
Environment of use. 6
Environmental conditions 7
Warranty and repair 7
Maintenance 7
Line voltage 7
Description of the controls 8
Basic signal measurement 10
Signals which can be measured 10
Amplitude of signals 10
Values of a sine wave signal 10
DC and ac components of an input signal 11
Timing relationships 11
Connection of signals 11
First time operation and initial adjustments 12
Trace rotation TR 12
Probe adjustment and use 12
1 kHz adjustment 12
1 MHz adjustment 13
Operating modes of the vertical amplifi er 13
XY operation 14
Phase measurements with Lissajous fi gures 14
Measurement of phase differences in dual
channel Yt mode 14
Measurement of amplitude modulation 15
Triggering and time base 15
Automatic peak triggering (MODE menu) 15
Normal trigger mode (See menu MODE) 16
Slope selection (Menu FILTER) 16
Trigger coupling (Menu: FILTER) 16
Video (tv triggering) 16
Frame sync pulse triggering 17
Line sync pulse triggering 17
LINE trigger 17
Alternate trigger 17
External triggering 17
Indication of triggered operation (TRIG’D LED) 17
Hold-off time adjustment 17
Time base B (2nd time base). Delaying,
Delayed Sweep. Analog mode. 18
Alternate sweep 18
AUTOSET 19
Component tester 19
CombiScope 21
DSO Operation 22
DSO operating modes 22
Memory resolution 22
Memory depth 23
Horizontal resolution with X magnifi er 23
Maximum signal frequency in DSO mode 23
Display of aliases 23
Vertical amplifi er operating modes 23
Data transfer 23
HO710: RS-232 Interface, Remote control 24
Selection of Baud rate 24
Data transmission 24
Loading of new fi rmware 24
General information concerning MENU 25
Controls and Readout 26
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