Tektronix WFM 601A User Manual

Reference

WFM 601A, WFM 601E & WFM 601M User Manual

Instrument gain may require adjustment for special monitoring applications or to
ensure the best precision for cursor or graticule signal measurements. Follow
these procedures to set the vertical and horizontal gain.

1. Press the WAVEFORM/PARADE button to select the Waveform display.

2. Press the CONFIG menu button and use the bezel knob to select the

CALIBRATE submenu. Press the bezel buttons to set CAL SIG on and
GAIN CAL on

.

3. Use the VERT POS control to place the calibrator signal between the 0 V

reference and 0.7 graticule lines. The amplitude of the calibration signal is
exactly 700 mV.

4. If the RESET V CAL readout is on, press the adjacent bezel button to turn it

off. Pressing the RESET V CAL bezel button reinstates the gain setting
established at the last calibration.

5. Check to see that the calibrator signal is now displayed at exactly 700 mV. If

the gain is off, adjust the gain for exactly 700 mV with the V CAL bezel
knob. Press the GAIN CAL button if the V CAL knob is not available.

1. Press the Waveform/PARADE button to select the Waveform display.

2. Press the CONFIG menu button and use the bezel knob to select the

CALIBRATE submenu. Press the bezel buttons to set CAL SIG on and
GAIN CAL on

.

3. If the RESET H CAL readout is on, press the adjacent bezel button to turn it

off. Pressing the RESET H CAL bezel button reinstates the gain setting
established at the last calibration.

4. Press the SWEEP LINE/FIELD button to select the 2 Line sweep mode

(10 

ms/div) and check for one full cycle per major division.

5. If the gain is off slightly, adjust the horizontal gain with the H CAL bezel

knob. If the H CAL knob is not available, press the GAIN CAL button.