HP 37718A Installation And Verification Manual page 134

Table 3-4
Bit Rate/
Center
Frequency
2048kHz
8448kHz
34368kHz
139264kHz
N OTE
Performance Tests
PDH Transmit/Receive Jitter Amplitude Accuracy
Tx/Rx Jitter Amplitude Accuracy, Ranges (1/1.6 UIp-p)
Modulation Nulled
Frequency Jitter
Amplitude
(UI)
2400Hz 0.77
10700Hz 0.77
4000Hz 0.77
4000Hz 0.77
The Bit Rates available are dependent on the HP 37718A option.
13 Press STOP to stop measurement.
14 Check the Jitter accuracy for each value in Table 3-4. In each case, set the HP
37718A Rate and Spectrum Analyzer Center Frequency to the value given in
column 1 of the table (Set the HP 37718A PATTERN to ALL ONES and
JITTER AMPLITUDE to minimum after each change of Bit Rate).
Set the HP 37718A Jitter Modulation Frequency and Amplitude to the values
given in columns 2 and 3 of the table. Fine-tune the amplitude to obtain the lowest
carrier level on the Spectrum Analyzer display and check that the jitter amplitude
displayed on the HP 37718A TX settings & RX results are between the limits
given in columns 4 to 7 of Table 3-4.
3-94
Minimum Maximum
Jitter Jitter (UI)
(UI)
TX
TX
0.69 0.83
0.69 0.83
0.69 0.83
0.68 0.84
Minimum Maximum
Jitter (UI) Jitter (UI)
RX RX
0.711 0.829
0.706 0.834
0.706 0.834
0.706 0.834