Symmetricom 58502A Manuel d'utilisateur télécharger pdf (Page 37)

Chapter 2 Performance Tests

58502A Performance Tests

User’s Guide 2-11

58502A Performance Tests

These tests verify the specified electrical performance of the 58502A

Distribution Amplifier. The tests do not require access to the inside of

the instrument and do not test typical specifications or supplementary

characteristics.

If the performance test is to be considered valid, the following

conditions must be met:

• Instrument being tested is powered on and warmed up.

• Tests are conducted as presented in this section.

• Tests are conducted under normal operating conditions as stated in

Chapter 7, “Specifications.”

• Test equipment is selected according to the Table 2-1,

“Recommended Test Equipment,” on page 2-4.

Equipment

• HP 8663A Signal Generator or equivalent

• HP 3400B RMS Voltmeter or equivalent

•50Ω BNC Feedthrough: HP 10100C or equivalent (Use the 50Ω

feedthrough if you are using the HP 54600B Oscilloscope; however,

if you are not using this scope DO NOT use the 50Ω feedthrough.)

Input Level Response Tests

A 10 MHz signal is input to the 58502A from a signal generator. The

level of this signal is adjusted from +7 dBm to +15 dBm while the

twelve Outputs are verified for a 0.707 to 1.12 Vrms signal.

Specifications Tested:

58502A Input Ranges

58502A Outputs, 50Ω load

The HP 54600B scope has only 1 MΩ input impedance. It does not allow you to switch or set the

impedance to 50Ω.

Minimum Level

+7 dBm

Maximum Level

+15 dBm

Output Level

+13 dBm

1 dB/

−

3dB

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Symmetricom 58502A Manuel d'utilisateur Page 37