Tektronix 2247A

Performance Check Procedure
14,
Superimpose the CH 1 and CH 2 traces at the 100% graticule marking.
Connect calibration generator (PG 506) Fast Rise, rlsing-edge signal
to the CH 1 and CH 2 inputs via a 50 1 precision BNC coaxial cable, a
50 1 BNC termination, and a BNC dual-input coupler.
Connect calibration generator Trig Out signal to the CH 3 input via a
50 © BNC coaxial cable and a 50 0 BNC termination.
Set the calibration generator to Fast Rise and adjust Pulse Amplitude
for five divisions of signal amplitude at 1 MHz.
Position the rising edges of the superimposed waveforms horizontally to
the center vertical graticule line.
NOTE
It may be necessary to readjust the trigger level to display the
rising-edge signal in the Delay Match steps. This can be done
most easily by pressing the upper Trigger MODE button to cause
the trigger level to be automatically readjusted.
Set X10 MAG On (for 2 ns/div sweep speed).
CHECK—that the leading edges of the two waveforms have less than
0.1
horizontal
division
separation
at
the
center
graticule
line
excluding
trace
width.
CH 1 to CH 4 Signal Delay Match
Set Vertical MODE to CH 1 and CH 4 (CH 2 off).
Move the CH 2 signal to the CH 4 input connector.
Superimpose the CH 4 waveform on the CH 1 waveform.
CHECK—that the leading edges of the two waveforms have less than
0.1 horizontal division separation at the center graticule line excluding
trace width.
7-20
2247A
Operators
SR
ES
Ea
cs