User`s guide

System Specifications 17
Agilent E5505A User’s Guide 391
Reliable accuracy
The E5505A phase noise system minimizes measurement uncertainty by
assuring you of accurate and repeatable measurement results.
Measurement qualifications
In order for the E5505A to meet its accuracy specifications for any
measurement‘, these qualifications must be met by the signal sources you are
using:
• Source Return Loss: 9.5 dB (<2:1 SWR)
• Source Harmonic Distortion <–20 dB (or a square wave)
• Nonharmonic spurious ≤ –26 dBc (except for phase modulation close to the
carrier.
Phase detector input power (<1.6 GHz carrier frequency)
R input = 0 to +23 dBm
L input = +15 to +23 dBm
Downconverter input range 1 GHz to 6 GHz
1 GHz to 18 GHz
1.5 GHz to 26.5 GHz
External noise input port 0.01 Hz to 100 MHz
Measurement accuracy ±2 dB (<1.0 MHz offsets)
±4 dB (<100 MHz offsets)
Table 67 Operating characteristics (continued)
Table 68 Phase noise measurement accuracy
RF Phase Detector Accuracy
Frequency Range Offset from Carrier
.01 Hz to 1 MHz
± 2 dB
1 MHz to 100 MHz
± 4 dB
Table 69 AM noise measurement accuracy
AM Detector Accuracy
Frequency Range Offset from Carrier
.01 Hz to 1 MHz
± 3 dB
1 MHz to 100 MHz
± 5 dB