User Manual

Performance Ver

iﬁcation

Analog Bandwidth

The following steps prepare the network analyzer for m easur ing bandwidth and CMRR. The actual settings may vary w ith

different models of network analyzer. Refer to the user documentation supplied with the network analyzer for details

on performing these steps.

NOTE. An alternative procedure for testing the analog bandwidth and CMRR without a network analyzer is available.

Preparation

The 1103 power supply can operate two probes. To keep the probe warmed up, move it to channel 2 of the 1103 while

normalizing

channel 1.

1. Set the netwo

rk analyzer to measure transmission loss, S

. Attach cables to both ports.

2. Set the displ

ay format to log magnitude, 1 dB/div, reference value –14 dB, and linear frequency.

3. Set the start

frequency to ≈ 30 kHz (or the lowest frequency on the network analyzer) and the stop frequency to ≈ 2GHz.

4. Set the test p

ort power to +10 dBm .

5. Set the IF ban

dwidth to 10 kHz.

6. Attach the ca

ble from port 1 to the 1103 channel 1 input connector (TekProbe connector). Use a male BNC adapter

if necessary.

7. Attach the cable from port 2 to the 1103 channel 1 output connector (conventional BNC). U se a male BNC adapter

if necessary.

8. Normalize the network analyzer to remove the loss through channel 1 of the 1103 power supply.

24 P6250 & P6251 Technical Reference