2-78 Chapter 2
System Verification and Performance Tests
Agilent 8753ES System Verification and Performance Tests
14. Test Port Output/Input Harmonics (Analyzers with Option 002)
Perform this test to determine the spectral purity of the analyzer’s input and output test
ports. Output and input harmonic levels are measured using the analyzer’s harmonic
mode which sets the receiver’s frequency at the second or third harmonic of the source
frequency.
Analyzer warm-up time: 30 minutes
NOTE The test port input 3rd harmonic specifications are better than the test port
output 3rd harmonic specifications.
Specifications
Required Equipment
Test Port Harmonic Limit
Output 2nd
< −25 dBc @ +10 dBm
a
a. +8 dBm for analyzers with Option 014 or 075.
Output 3rd
< −25 dBc @ +10 dBm
a
Input Port 1 2nd < −15 dBc @ +8 dBm
Input Port 1 3rd < −30 dBc @ +8 dBm
Input Port 2 2nd < −15 dBc @ +8 dBm
Input Port 2 3rd < −30 dBc @ +8 dBm
Description HP/Agilent Part or Model Number
Cable: APC-7, 24-inch 8120-4779
Attenuators (2): 20 dB, APC-7 8492A Option 020
Additional Equipment for 75Ω Analyzers
Minimum Loss Pad (2) 11852B
Cable: Type-N, 50Ω 8120-4781
Attenuators (2): 20 dB, Type-N 8491A Option 020