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white-rabbit
wr-calibration
Commits
949642e4
Commit
949642e4
authored
Dec 08, 2016
by
Peter Jansweijer
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MiniCircuits Splitters ZFRSC-123+ attenuation values updated
parent
e35a430b
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-8
LeCroy8254.py
sw/ab_cal_scripts/lib/LeCroy8254.py
+8
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sw/ab_cal_scripts/lib/LeCroy8254.py
View file @
949642e4
...
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@@ -625,28 +625,28 @@ def osc_init(scope, time_base = 50.0e-9):
# use Channel 3 Ethernet Frame input
# A fixed trigger level is important for proper timing measurement
#
Choose 1.4 Volt for a direct signal but 0.8 Volt when the signal
#
is split by a power splitter
#
MiniCircuits Splitters ZFRSC-123+ have ~ 6 + 3,75 dB attenuation (~ factor 3).
#
A 2,4 V signal split once results in 0,8 V, slit twice in 260 mV.
scope
.
write
(
"TRIG_SELECT EDGE,SR,C1"
)
use_power_splitter
=
True
if
use_power_splitter
:
scope
.
write
(
"C1:TRIG_LEVEL 0.
4
"
)
scope
.
write
(
"C1:Volt_DIV 0.
5
"
)
scope
.
write
(
"C1:TRIG_LEVEL 0.
15
"
)
scope
.
write
(
"C1:Volt_DIV 0.
1
"
)
else
:
scope
.
write
(
"C1:TRIG_LEVEL 0.
7
"
)
scope
.
write
(
"C1:Volt_DIV 0.
75
"
)
scope
.
write
(
"C1:TRIG_LEVEL 0.
3
"
)
scope
.
write
(
"C1:Volt_DIV 0.
2
"
)
scope
.
write
(
"C1:COUPLING D50"
)
scope
.
write
(
"C1:OFFSET 0.0"
)
scope
.
write
(
"C3:COUPLING D50"
)
scope
.
write
(
"C3:OFFSET 0.0"
)
scope
.
write
(
"C3:Volt_DIV 0.
1
25"
)
scope
.
write
(
"C3:Volt_DIV 0.25"
)
scope
.
write
(
"C4:COUPLING D50"
)
scope
.
write
(
"C4:OFFSET 0.0"
)
scope
.
write
(
"C4:Volt_DIV 0.
1
25"
)
scope
.
write
(
"C4:Volt_DIV 0.25"
)
# Trigger in the centre of the screen; important for maximum estimations
...
...
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