31
9.3.3 Unit Setup commands
9.3.3.1.1 Fx..x
Set the center frequency, x..x is the center frequency in Hz. Range of
center frequencies depends on version of unit, limits can be determined from
unit setup data. No EOS marker is required if immediately followed with
another command, but one may be sent if desired. If this is the last command
in a string, the EOS marker must be used.
9.3.3.1.2
Wx..x
Set the sweep width, x..x is in Hz. The unit may deviate from this value
due to synthesizer and/or display limitations. The unit sends the actual
sweep width to the Terminal software in the header block that precedes the
block of measured data (i.e. request measured data or unit setup data to get
the unit’s actual sweep width). No EOS marker is required if immediately
followed with another command, but one may be sent if desired. If this is the
last command in a string, the EOS marker must be used.
9.3.3.1.3
Dxxx
Set the data format that the unit sends to the Terminal software. No EOS
marker is required, but one may be sent if desired. See table in Para 9.3.1.2.1
for definition of xxx.
9.3.3.1.4
S100
Set the unit’s configuration. An entire block of configuration data follows
this command. The format of this data block is identical to the unit response
for configuration request (without the S002). No EOS marker is required if
immediately followed with another command, but one may be sent if desired.
If this is the last command in a string, the EOS marker must be used. The
EOS marker, when used, must be placed after the last digit of configuration
data.
9.3.3.2 Setup Data Response
The table details the setup data block. Note that the response (command)
string is contained in the first column, and is sent as a continuous string. The
string has been subdivided in the table for clarity. Most data is prefixed by ‘A’,
thus the order of the data must be followed exactly to keep in sync. The only
exception is that read only data need not be sent in a command (see *
below).
* an asterisk in column A indicates that this data is read only, attempting to
alter this value will do nothing. These read only values (except for cwindex,
lower plot index, and upper plot index) may be omitted when the terminal
sends this data block as a command to the unit. Values for the cw, low, and
high plot indices must be sent to stay in sync, even though these values have
Summary of Contents for VIA Bravo MRI
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