Third Order Intercept (Toi); 2400 Mhz Toi Test - Anritsu Spectrum Master MS2722C Maintenance Manual

2-10 Third Order Intercept (TOI)

2-10 Third Order Intercept (TOI)

The following test is used to verify the Displayed Average Noise Level (DANL) of the spectrum analyzer
systems in the MS272xC Spectrum Master. This test is performed using the RMS detection mode.
The following test verifies the Third Order Intercept point (also known as TOI or IP3) of the spectrum analyzer
in Spectrum Master Models MS2722C, MS2723C, MS2724C, MS2725C, and MS2726C.

2400 MHz TOI Test

Equipment Required for MS2722C, MS2723C, and MS2724C
• Anritsu MG3692x Synthesized Signal Generator
• Frequency Reference Symmetricom Rubisource T&M
• Adapter, Anritsu Model 34NN50A
• Spectrum Master: MS272xC
• Power Meter, Anritsu Model ML2438A
• Signal Generator, Agilent Model 8648D
• Power Splitter, Aeroflex/Weinschel Model 1870A
• Power Sensor, Anritsu Model MA2442D (10 MHz to 18 GHz, –67 dB to +20 dB)
• Fixed Attenuator, Aeroflex/Weinschel Model 442
• Fixed Attenuator, Aeroflex/Weinschel Model 446
• Fixed Attenuator, Aeroflex/Weinschel Model 4420
• RF Coaxial Cable, N(m) to N(f), Anritsu Model 15NNF50-1.5C (3)
Equipment Required for MS2725C and MS2726C
• All of the above, plus
• Anritsu 71693-R Ruggedized K(f) to N(f) Adapter
2-22
Chapter 2 — Spectrum Analyzer Verification
PN: 10580-00279 Rev. E MS272xC MM