Tektronix 2714, Руководство программиста

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Command and Query Definitions
4–42
2714 & 2715 Programmer Manual
Arguments: None
This is a command with no argument that recalls the default values for the
AUTO TEST LOCATIONS table used by the In-Channel Response test. The
default values, listed in order within the table, are –0.5 MHz, +0.5 MHz, +1.0
MHz, +2.0 MHz, +3.0 MHz, and +3.58 MHz.
ICDefault
Arguments:
REL
,
DEL
This command defines entries in the AUTO TEST LOCATIONS table used by
the automatic mode of the In-Channel Response test.
<table index>
is an
integer value from 1 to 6 that defines the table location. The
<arg>
parameter
defines whether the frequency is relative (
REL
) to the carrier, or whether the value
defined by the
<table index>
parameter should be deleted (
DEL
). The
<frequency>
parameter is the frequency in Hz. It may be a positive or negative
value within the range of 0 to 1800 MHz.
The
REL
argument defines a test location relative to the carrier frequency of the
current channel. For example, the following command defines (for table index 2)
a test location that is 1 MHz above the channel carrier frequency:
ICFreq 2, REL, +1 MHz
(for example)
The
DEL
argument deletes the table element defined by the <table index>
argument. A frequency parameter must be present, but its value is ignored. This
example shows how the value in table index 4 is deleted:
ICFreq 4, DEL, +2.5 MHz
(for example)
Arguments: None
This simple query returns the complete AUTO TEST LOCATIONS table in this
format:
ICFREQ 6,1 <type>,<freq>,2,<type>,<freq>,... 6,<type>,<freq>
The
<type>
field is either
REL
(relative) or
DEL
(delete).
The
<freq>
field is the frequency in the corresponding table location. If the table
type is
REL
,
<freq>
is a value within the
±
1800 MHz range. If the table type is
DEL
,
<freq>
is 0.
ICDefault
ICFreq <table index>,
<arg>, <frequency>
ICFreq?