26 Chapter1
Introduction
If You Replace or Repair an Assembly
A3A6 Dual Mixer or
Low Band Mixer
CAL FREQ
CAL AMPTD
CAL YTF
CAL MXR
Frequency Response
Noise Sidebands
System Related Sidebands
Frequency Response
Other Input Related Spurious Responses
Spurious Response
Gain Compression
Displayed Average Noise
Residual Responses
A3A7 YIG-Tuned
Oscillator
First LO
Distribution Amplifier
for Option 009 or 010
CAL FREQ
CAL AMPTD
CAL YTF
Frequency Readout & Marker Count Accy
Noise Sidebands
System Related Sidebands
Residual FM Frequency Span Readout Accy
Frequency Response
Other Input Related Spurious Responses
Spurious Response
Residual Responses
A3A8 YIG-Tuned Filter
or A3A8 Switched
YIG-Tuned Filter
CAL FREQ
CAL AMPTD
CAL YTF
CAL MXR
Frequency Response
Noise Sidebands System Related Sidebands
Frequency Response
Other Input Related Spurious Responses
Spurious Response
Displayed Average Noise
Residual Responses
A3A9 Bandpass Filter CAL FREQ
CAL AMPTD
None
A3A10 Directional
Coupler
CAL FREQ
CAL AMPTD
CAL YTF
System Related Sidebands
Frequency Response
Other Input Related Spurious Responses
Spurious Responses
Residual Responses
A3A11 Step-Recovery
Diode
CAL FREQ
CAL AMPTD
Comb Generator Frequency Accuracy
A3A12 3 dB Attenuator CAL FREQ
CAL AMPTD
None
A3A13 Isolator CAL FREQ
CAL AMPTD
CAL YTF
System Related Sidebands
Frequency Response
Other Input Related Spurious Responses
Spurious Responses
Residual Responses
Table 1-7 Adjustments and Tests for Replaced or Repaired Assemblies
Replaced or Repaired
Assembly
Related Adjustments
and Adjustment
Routines
Related Performance Verification Tests