3-9
IM 704420-01E
Measurement Preparation and Common Operations
3
3.6
Phase Correcting the Probe
Items Required
The following items are required:
Compensation signal
Frequency
Approx. 1 kHz
Voltage (waveform amplitude)
Approx. 1 V
P-P
Waveform type
Rectangular wave
Output impedance
Approx. 1 M
Ω
Recommended signal
CAL signal of Digital Oscilloscope DL1540 (YOKOGAWA)
Waveform monitor
Frequency characteristics
DC to 100 MHz (–3 dB point)
Input coupling
DC
Input impedance
Connect a 50-
Ω
terminator to the input connector of the
waveform monitor.
Recommended instrument
Digital Oscilloscope DL1540 (YOKOGAWA) and a 50-
Ω
terminator (700976, YOKOGAWA)
The connection procedure and operation when the recommended signal is
connected to the recommended instruments are described below.
Connecting the Instrument
CAUTION
• Do not apply a voltage that exceeds the maximum input voltage to the input
connector. This may cause damage to the input section.
• Do not short the CAL signal output terminal of the DL1540 or the monitor output
connector of the TA120E. Do not apply external voltage to the monitor output
connector. This may cause damage to the internal circuitry.
Check that the TA120E and DL1540 are turned OFF and connect them as shown in the
figure.
1.
Using a BNC cable, connect the monitor output connector on the rear panel of
the TA120E and the signal input connector of the DL1540.
2.
Connect the BNC end of the probe that is to be phase corrected to the RF input
connector on the front panel of the TA120E.
3.
Connect the other end of the probe to the CAL signal output terminal of the
DL1540 and the ground wire to the functional ground terminal.
Functional ground terminal
CAL signal output terminal
BNC cable
Monitor output connector
RF input connector
TA120E
50-
Ω
terminator
DL1540
Phase correction hole
Signal input connector