5-20 Performance Verification Rev. D
5.9 Bandwidth
The purpose of this test is to ensure that the entire system meets the bandwidth
specification. An external source is used as the reference to provide a signal
where amplitude and frequency are well controlled.
If a leveled sine wave generator is not used then the amplitude of the generator as
a function of frequency and power must be calibrated using an HP8482A sensor on
an HP437B power meter or equivalent.
Specifications & Test limits
DC to 1GHz (10mV to 5V/div) LT584
DC to 500MHz (10mV to 5V/div) LT37x, LT354
DC to 350MHz (10mV to 5V/div) LT26x
Procedure
!
Recall
xxxP022.PNL
or configure the DSO
Panel Setups :
Recall FROM DEFAULT SETUP
Channels Trace ON
Channel 1, Channel 2, Channel 3 & Channel 4
Input Coupling :
DC 50
Ω
ΩΩ
Ω
on all 4 Channels
Input gain :
50 mV/div
on all 4 Channels
Input offset :
0 mV
on all 4 Channels
Trigger setup :
Edge
Trigger on :
Line
Slope line :
Positive
Mode :
Auto
Time base :
1
µ
µµ
µ
sec/div
.
Channel use :
4
Record up to :
25 k
WAVE PILOT :
MEASURE
Mode :
Custom
Statistics :
On
Change parameters
On line 1 :
Sdev of 1
On line 2 :
Sdev of 2
On line 3 :
Sdev of 3
On line 4 :
Sdev of 4
!
Connect the HP8482A power sensor to the power meter.
!
Zero and
calibrate
the power sensor according to the power meter instructions.
!
Connect a
BNC adapter
to the power sensor.
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