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9.3.2.1 Unit Setup commands
9.3.2.1.1
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.
9.3.2.1.2
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.
9.3.2.1.3
Dxxx
When in the VIA or SWR modes this command sets 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.
9.3.2.1.4
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.
9.3.2.2 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 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 low and high plot indices must be sent to stay in sync, even though these
values have no effect on the unit’s setup. These read only values will be sent to the terminal
in response to a S000 or Mxx command.