1250 Frequency Response Analyzer The 1251 Multichannel Analyzer System
AMK/1250/1 16-7
4. To display data derived from any two channels of the measurement system, as a
point-to-point (ratio) measurement, use the SELECT key until the display becomes:
SOURCE [Ch ( )/Ch m]
5. Key in the numerator channel number, e.g. 47, and press ENTER. The display
becomes:
SOURCE [Ch 47 /Ch ( )]
6. Now key in the denominator channel number, e.g. 32. The display shows the pair of
channels selected as:
SOURCE [Ch 47 /Ch (32)]
Press ENTER to input the selected channels.
16.6.5 CHECKING THE ANALYSER AND DISPLAY/PLOTTER MENU
SETTINGS
After the ANALYZER and DISPLAY/PLOTTER menus have been set up, the STATUS
key on the 1250 may be used to check the settings.
Chapter 11, Section 1, details the procedure and lists the order in which the pages of
status information are displayed.
16.7 REMOTE OPERATION OF THE SYSTEM
16.7.1 INTRODUCTION
The command structure for operating the 1251 Multichannel Analyzer System using an
external Controller is identical to that used for 1250 remote operation. Details of the
remote operating commands are given in Chapter 13.
This section covers features peculiar to the remote operation of the 1251 System.
16.7.2 GPIB CAPABILITY CODE
The GPIB Interface in each 1251 'slave' Unit conforms to the following sub-functions
within the IEEE 488-1978 standard, as listed on the rear panel:
SH1 Source Handshake, complete capability
AH1 Acceptor Handshake, complete capability
T4 Basic Talker
TE0 No Extended Talker capability
L0 No Listener capability
LE0 No Extended Listener capability
SR0 No Service Request capability (No Serial Poll)
RL0 No Remote/Local capability
PP0 No Parallel Poll capability
DC2 Device Clear capability, excluding Selective Device Clear
C0 No Controller capability
DT0 No Device Trigger capability
E1 Open Collector Drivers
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