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14-13
OPERATIONAL
CHECKOUT–
REFLECTION HIGH
LEVEL NOISE TEST
The following test verifies that the reflection high-level noise in the
371XXC Millimeter VNA System will not significantly affect the accu-
racy of subsequent measurements. High-level noise is the random
noise that exists in the 371XXC Millimeter VNA System. Because it is
non-systematic, it cannot be accurately predicted or measured. Thus,
it cannot be removed using conventional error-correction techniques.
Measurement calibration is not required for this test.
Test Setup
Set up the 371XXC Millimeter VNA System controls as shown at left.
Test Procedure
The test procedure is described below.
.Step 1
Attach flush short to waveguide port on 3740A-X on
Port 1
(and
Port 2
, if two are used); leave waveguide
port on 3741A-X unterminated.
.Step 2
Press
CH 1
key.
.Step 3
Press
Trace Memory
key.
37XXXC OM
14-29
MILLIMETER WAVE
OPERATIONAL CHECKOUT
Key
Menu Choice
SETUP
MENU
START: Low-end Fre-
quency
STOP: High-end Fre-
quency
CHAN-
NEL
MENU
DUAL CHANNELS 1 & 3
(two 3740A-X’s)
SINGLE CHANNEL 3
(one 3740A-X and one
3741A-X)
GRAPH
TYPE
LOG MAGNITUDE (both
channels)
SET
SCALE
RESOLUTION: 0.050
dB/DIV
REF VALUE: 0.0 dB
(both channels)
S-PARA
MS
Channel 1 S11
Channel 3 S22
DATA
POINT
401
VIDEO IF
BW
1 KHz
Содержание 37 C Series
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Страница 96: ...Table of Contents 5 1 INTRODUCTION 5 3 5 2 ERROR MESSAGES 5 3 Chapter 5 Error and Status Messages...
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Страница 117: ...HARD COPY AND DISK OUTPUT DATA DISPLAYS 6 16 37XXXC OM Figure 6 12 Example of a Tabular Printout 37347C...
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Страница 582: ...37100C 37200C 37300C Vector Network Analyzers Technical Data Sheet Vector Network Analysis up to 65 GHz...