Tektronix 1710J Series, Instruction Manual

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Performance Verification
6–14
1710J-Series Waveform Monitors
12. Check that the baseline of the modulated pulse varies less than 2%.
The requirements are shown in Table 6–7.
Table 6–7: X5 Gain Transient Response
Requirement Tolerance
2T Pulse and Bar
Preshoot 1% or less
Pulse-to-bar ratio 1:1 within 2%
Overshoot 4% or less
Ringing 4% or less
1. Connect the black burst signal to the 1710J-Series Waveform Monitor EXT
REF and terminate the remaining side of the loop-through input with a 75
W
terminator.
2. Turn MAG OFF. Select X5 VERTICAL GAIN and EXT REF.
3. Install the Step Attenuator and insert 14 dB of attenuation in the input signal
path.
4. Check for 1% or less preshoot and 4% or less overshoot and ringing for the
pulse and bar transitions.
5. Check for a pulse-to-bar ratio within 2% of unity.
6. Disconnect signal from the CH B input.
The requirement is that response at 15 kHz does not vary between FLAT and
LPASS by more than 1%.
1. Connect the modulated, five-step linearity signal to the CH B input.
2. Select the 100-IRE (100%) FLAT FIELD/ALT LINEARITY setting of the
generator.
3. Select the LPASS FILTER and turn off X5 GAIN (X1).
4. Switch between LPASS and FLAT.
5. Check that the amplitude of the linearity signal, in LPASS, is within
±
1% of
the amplitude of the display in the FLAT mode.
Check X5 Transient
Response
Check Low Pass Filter
Response