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Verification procedure – Teledyne LeCroy WaveLink Differential Probe Series (13-25 GHz) User Manual

Page 68

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WaveLink Series Differential Probe (13-25 GHz)

62

WL-HBW-A-OM-E Rev B

Verification Procedure

This verification procedure describes the tests, using a probe with an SI interconnect lead attached.
Note that the interconnect lead does not need to be attached for this procedure.

The setup and procedure for testing Output Zero and Attenuation Accuracy is the same for WL-
PLINK-A as for WL-2.92mm, except for a different oscilloscope input connection.

Output Zero

1.

Connect the appropriate calibration fixture to the output of the probe to be tested (shown in
the following figure).

NOTE: The output zero is not affected by the input leads, so any interconnect lead may be
used for this test.

2.

Provide power to the probe by connecting the ProLink-CF01 to any ProLink input of a
WaveMaster 8 Zi /Zi-A oscilloscope. If connecting to a 2.92mm input, use the appropriate
devices, as described in the

Preliminary Procedure (on

page 61

)

.

3.

No signal input connection to the oscilloscope is required for the Output Zero test.

4. For the WL-PLINK-A

, connect a BNC-to-SMA adapter to the SMA output connector of the

ProLink-CF01 Calibration Fixture. Then, connect the BNC end to a BNC Tee (shown in the
following figure).

For the WL-2.92MM, connect a BNC to 2.92MM adapter to the 2.92mm output connector of
the LPA-2.92 Calibration Fixture.

5.

Connect the Precision 50 Ω Terminator, using another BNC cable, to the free end of the BNC
Tee.

6.

Set the DMM to DC volts.

7.

Connect the Precision 50 Ω Terminator to the DMM input.

8.

After a warm-up time of at least 20 minutes, measure the output voltage and record the
result on the

Performance Verification Test Record (on

page 70

)

as

Output Voltage

(step 1).