Model 8310
IM-289A
Aeroflex / Weinschel
24
5-9. GENERAL COMMANDS:
CHAN
Function:
Selects the currently active channel
Syntax:
CHAN
chnum
Argument(s):
chnum
integer channel number
Remarks:
This function is used to select the currently active channel.
Return Value:
none
Example(s):
CHAN 1
CHAN?
Function:
Reads the current channel number
Syntax
:
CHAN?
Argument(s)
:
none
Remarks:
This function is used to read the currently active channel number.
Return Value:
chnum
integer current channel number
Example(s):
CHAN? returns ’1’
ATTN
Function:
Set attenuation
Syntax:
ATTN
atten
Argument(s):
atten real desired value, in dB
Remarks:
This function sets the attenuation of the currently selected channel to atten.
Return Value:
none
Example(s):
ATTN 63
ATTN 12.25
ATTN 45.0
ATTN?
Function:
Read attenuation
Syntax:
ATTN?
Argument(s):
none
Remarks:
This function reads the attenuation of the currently selected channel.
Return Value:
atten
real attenuation value, in dB
Example(s):
ATTN? returns ’63.00’
REL
Function:
Sets relative display mode for the current channel
Syntax:
REL
mode
Argument(s):
mode
integer relative mode on/off
Remarks
:
This function is used to set the relative display mode of operation for the current channel.
A value of
0 for the parameter mode will turn relative mode off, while a value of 1 will turn
relative mode on.
Return Value:
none
Example(s):
REL 1
REF
Function:
Sets reference
Syntax:
REF
Argument(s):
none
Remarks:
This function sets the reference value for the active channel to the current attenuation
setting.
This command is used for the REL and RELATTN functions.
Return Value:
none
Example(s):
REF; REL 1 sets the reference, and turns on relative mode
REF?
Function:
Read reference setting
Syntax:
REF?
Argument(s):
none
Remarks:
This function reads the reference setting of the currently selected channel.
Return Value:
refatten
real reference attenuation value, in dB
Example(s):
REF? returns ’30.00’
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