Agilent Technologies HP 70910A Podręcznik Użytkownika Pobierz pdf (Strona 121)

Chapter 4 121

Performance Tests

3. Multiple Response Rejection Test

Performance Tests

19.On the spectrum analyzer, press CENTER FREQUENCY and tune to a multiple response

by entering the frequency value for the corresponding band listed below:

for an 11974A: 35.226200 GHz (n

′

= 6+)

for an 11974Q: 41.169650 GHz (n

′

= 8+)

for an 11974U: 49.919650 GHz (n

′

= 8+)

for an 11974V: 58.279767 GHz (n

′

= 12+)

20.Record the above frequency in Table 4-9 on page 144 as Multiple Response Frequency

#1. Press

PEAK SEARCH to place the delta marker at the top of the multiple response.

The absolute value of the delta marker amplitude is the multiple response rejection.

NOTE If the signal is buried in the noise floor, reduce the video bandwidth to 100 Hz

to help identify the signal. At some frequencies, however, instrument

performance is so good that an image response may not be visible.

21.Record the multiple response rejection in Table 4-9 on page 144 as Multiple Response

Rejection #1.

22.On the spectrum analyzer, press

CENTER FREQUENCY and tune to the next multiple

response by entering the frequency value for the corresponding band listed below:

for an 11974A: 36.083269 GHz (n

′

= 6−)

for an 11974Q: 41.973150 GHz (n

′

= 8−)

for an 11974U: 50.723150 GHz (n

′

= 8−)

for an 11974V: 59.029700 GHz (n

′

= 12−)

23.Record the above frequency in Table 4-9 on page 144 as Multiple Response Frequency

#2. Press

PEAK SEARCH to place the delta marker at the top of the multiple response.

The absolute value of the delta marker amplitude is the multiple response rejection.

24.Record the multiple response rejection in Table 4-9 on page 144 as Multiple Response

Rejection #2.

25.Set the synthesized sweeper for a CW signal at the frequency listed below for the

corresponding band:

for an 11974A: 33.25 GHz

for an 11974Q: 41.50 GHz

for an 11974U: 50.00 GHz

for an 11974V: 62.50 GHz

1 2 ... 116 117 118 119 120 121 122 123 124 125 126 ... 153 154

Komentarze do niniejszej Instrukcji

Brak uwag

Agilent Technologies HP 70910A Podręcznik Użytkownika Strona 121

Komentarze do niniejszej Instrukcji

Powiązane produkty i podręczniki dla Pomiary, testowanie i kontrola Agilent Technologies HP 70910A