Main Tb Triggering Pm3390B/3394B; Trigger Sensitivity Via Ch1, Ch2, Ch3 And Ch4 (Ext) - Fluke Autoranging CombiScope PM3370B Reference Manual

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Settings/procedure:
1 - Apply a 2 kHz sine-wave signal of 1.2 V(pp into 50Ω) to CH1.
2 - Press the AUTOSET key and set CH1 to 0.2V/div.
3 - Adjust the generator to a trace height of exactly 6 divisions.
4 - Press the DISPLAY menu key and then press the X-DEFL softkey.
5 - Select 'on' and 'ch1' from the X-DEFL menu.
6 - Increase the input frequency to 100 kHz.
Requirements:
Verify that the phase shift is less than 3°, ≤0.32 div, see figure).
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Figure 4.5 Phase shift between horizontal and vertical channel
4.3.34 MAIN TB triggering PM3390B/3394B; trigger sensitivity via CH1,
CH2, CH3 and CH4 (EXT)
The trigger sensitivity depends on the amplitude and frequency of the trigger
signal. In this test the main timebase trigger sensitivity via the CH1, CH2, CH3
and CH4 inputs is checked. For the PM3390B, this is checked for CH1, CH2 and
EXTernal TRIGger input.
Test equipment:
Fluke 5500A mode: levsine
(Alternative: constant amplitude sine wave generators SG 503 + SG 504).
MAT3842
PERFORMANCE TEST