Adjustment Procedure
1735 HD High Definition Waveform Monitor
6–11
m. Adjust the spectrum analyzer External Attenuation Amplitude by the
amount noted in step l. Note: The Reference Level Readout should now
be 0.00 dBm.
n. Connect a precision high-frequency terminator to the Device Under Test
connector on the RF Bridge.
o. Check that the frequency response from 0 MHz to 30 MHz is >35 dBm.
p. Return the frequency marker to 30 MHz if it was moved.
q. Remove the precision high-frequency terminator from the RF Bridge.
r.
Connect the Device Under Test connector on the RF Bridge to the
CH 1A INPUT on the 1735 HD through a male-to-male BNC adapter.
Terminate the CH 1A loop-through with the precision high-frequency
terminator used in step n.
s.
Select CH 1, CH 2, and CH 3 INPUTs, both A and B INPUTs (all
INPUT Channel LEDs should be on), and ONE LINE Sweep.
t.
Adjust A3C257 for a Reference Level Readout on the spectrum analyzer
of >35 dBm.
u. On the 1735 HD, switch between GND Off and On and check that the
Reference Level Readout on the spectrum analyzer does not change by
more than
±
2 dBm. Repeat adjustment as necessary to obtain reading.
v. Move the RF Bridge and loop-through precision high-frequency
terminator to each of the INPUT channels listed in Table 6–2, and repeat
step t. and u. for each of them.
Table 6–2: Return loss adjustments
Apply Signal
Adjustment
CH 1A
A3C257
CH 2A
A3C258
CH 3A
A3C259
CH 1B
A3C260
CH 2B
A3C261
CH 3B
A3C262
Summary of Contents for 070-8462-03
Page 5: ......
Page 13: ...Table of Contents viii 1735 HD High Definition Waveform Monitor...
Page 19: ...Preface xiv 1735 HD High Definition Waveform Monitor...
Page 20: ...Getting Started...
Page 21: ......
Page 35: ...Installation 1 14 1735 HD High Definition Waveform Monitor...
Page 36: ...Operating Basics...
Page 37: ......
Page 63: ...Operating Basics 2 26 1735 HD High Definition Waveform Monitor...
Page 64: ...Specifications...
Page 65: ......
Page 75: ...Specifications 3 10 1735 HD High Definition Waveform Monitor...
Page 77: ......
Page 78: ...Theory of Operation...
Page 79: ......
Page 109: ...Theory of Operation 4 30 1735 HD High Definition Waveform Monitor...
Page 110: ...Performance Verification...
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Page 134: ...Adjustment Procedure...
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Page 158: ...Maintenance...
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Page 163: ...Preventive Maintenance 7 4 1735 HD High Definition Waveform Monitor...
Page 179: ...Corrective Maintenance 7 20 1735 HD High Definition Waveform Monitor...
Page 181: ...Repackaging 7 22 1735 HD High Definition Waveform Monitor Figure 7 10 Repackaging...
Page 182: ...Replaceable Electrical Parts...
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Page 252: ...Diagrams...
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Page 256: ...Replaceable Mechanical Parts...
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Page 265: ...Replaceable Mechanical Parts 10 8 1735 HD High Definition Waveform Monitor...
Page 266: ...Appendices...
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