44
Getting Started
S
SS
Se
ee
ett
tttt
tti
ii
in
nn
ng
g g
g U
UU
Up a
p a p a
p a S
SS
Se
ee
er
rr
ri
ii
ia
aa
al
l l
l D
DD
Da
aa
at
tt
ta
a a
a S
SS
St
tt
tr
rr
rea
eaea
eam
m m
m S
SS
Si
ii
ig
gg
gn
nn
na
aa
al
ll
l
P
PP
Pr
rr
ro
oo
og
gg
gr
rr
ra
aa
am
mm
mm
mm
mi
ii
ing
ng ng
ng
E
EE
Ex
xx
xa
aa
am
mm
mp
pp
pl
ll
le
ee
e
If you want to include this burst signal in your GP-IB program use the
following command lines. The comment lines starting with a # are not
required.
# Reset the instrument to start from a defined, default status.
*RST
# Switch off the automatic display update to increase programming
# speed.
:DISPlay OFF
# Set the instrument to pattern mode and select NRZ data output format
# for output 1.
:DIGital:PATTern ON
:DIGital:SIGNal1:FORMat NRZ
# For example the command to set NRZ data format for the optional
# second channel is:
# :DIGital:SIGNal2:FORMat NRZ
# Define a pattern length of 24 bit and program the pattern:
# ‘111001110011001001010010’.
:TRIGger:COUNt 24
:DIGital:PATTern:DATA1 #224111001110011001001010010
# Set the frequency to 80 MHz, and output 2 width to 6.25 ns to avoid a
# parameter conflict.
:FREQuency 80MHZ
:PULSe:WIDTh2 6.25NS
# Set the output voltage to fixed ECL levels.
:VOLTage1:HIGH -0.85V
:VOLTage1:LOW -1.8V
# Enable the output 1 and the complement output 1 (Agilent 81110A
# with Agilent 81112A 3.8V/330 MHz output channel installed, only).
:OUTPut1 ON
:OUTPut1:COMPlement ON
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