Jackson Labs PHASE STATION 53100A, Руководство пользователя

Страница: 212 / 225

PhaseStation 53100A User’s Manual V1.04 25-Apr-2022 212
Measurement example: Phase noise plot acquisition
TimeLab can also retrieve and display phase noise and AM noise data from the PhaseStation 53100A
through the use of the
Acquire→Symmetricom 5115A / 5120A / 5125A (Phase noise) acquisition
option. Unlike the streaming phase data acquisition process, obtaining noise data from either TSERVE or
an actual 51XXA test set requires the program to connect to the server’s Telnet command port.
Because TimeLab can obtain most of the required measurement parameters and properties directly
from the server, relatively few configuration steps are needed in the 51XXA phase noise acquisition
dialog. It’s necessary only to ensure that the correct IP address and optional port number are specified,
in this case either
192.168.1.200 as used above in Figure 95, or the equivalent localhost alias used
earlier for phase data capture. No port number is required as long as the default command port
assignment (1299) has not been changed with the
/cmd_port
command-line parameter.
For convenience, the phase noise acquisition dialog offers four general-purpose command buttons that
are predefined with useful defaults that allow front-panel control commands to be transmitted to an
actual TSC 51XXA phase noise test set. (Only the
start and stop buttons are supported by TSERVE.)
Figure 96 shows the phase noise plots that were simultaneously measured during the one-hour
streaming data acquisition in the previous example.
Figure 95