PIM Master™ Passive Intermodulation Analyzer with Site Master™ Cable & Antenna Analyzer (331) and 2-Port Options (703)User Guide : Quick Start Guide : Passive Intermodulation (PIM) Measurements : Verifying Residual PIM
 
Verifying Residual PIM
Perform this test immediately following a calibration or when instructed to do so, such as when 12 hours or more have elapsed since the existing calibration was performed. Attach the Low PIM Load to the Test Port or to the end of the PIM test cable.
1. From the Measurements menu, press the PIM vs. Time submenu key followed by the Test submenu key so that Measure is underlined.
2. Lightly tap on the Low PIM Load and flex the PIM test cable (if attached) during the PIM vs. Time test. The peak PIM value should be at least 10 dB below the pass/fail criteria for the DUT.
If the measured PIM is outside of the limit in Step 2, then you may have one of the following problems:
• Metal flakes inside one or more RF connectors
• Loose RF connector
• Faulty Low PIM Load
• Worn connector saver (refer to Connector Saver)
• Damaged PIM Test Port connector
Investigate and repair the source of any problem, and then repeat the calibration process.
Verifying the PIM Standard
1. Connect a PIM Standard to the Test Port or to the end of the PIM test cable.
2. Connect a Low PIM Load to the PIM Standard.
3. From the Measurements Menu, press the PIM vs. Time submenu key, followed by the Test submenu key so that Measure is underlined.
4. The peak PIM value for the PIM Standard that you are testing should be within ± 3 dB of the numbers shown in Table: PIM Value Versus Frequency for PIM Standards – with Typical IM3 at 2 X 20 W. If the measured PIM is outside of the ± 3 dB limit, contact Anritsu customer service at http://www.anritsu.com/contact-us.
 
PIM Standards
Table: PIM Value Versus Frequency for PIM Standards – with Typical IM3 at 2 X 20 W provides PIM values and frequencies for two PIM Standards. The PIM values in this table represent PIM power for typical IM3 at 2 X 20 W.
PIM Value Versus Frequency for PIM Standards – with Typical IM3 at 2 X 20 W
Option
F1
(MHz)
F2
(MHz)
IM3
(MHz)
–80 dBm at 1775 MHz
PN: 1091‑390‑R
–80 dBm at 910 MHz
PN: 1091‑403‑R
–80 dBm at 1730 MHz
PN: 1091‑446‑R
600
617
640
663
–88 dBm
–131 dBc
–80 dBm
–123 dBc
–93 dBm
–136 dBc
700
(lower)
734
757
711
–87 dBm
–130 dBc
–81 dBm
–124 dBc
–87 dBm
–130 dBc
700
(upper)
734
757
780
–86 dBm
–129 dBc
–80 dBm
–123 dBc
–90 dBm
–133 dBc
701, 702
(lower)
768
803
733
–87 dBm
–130 dBc
–81 dBm
–124 dBc
–88 dBm
–131 dBc
701, 702
(upper)
768
803
838
–86 dBm
–129 dBc
–80 dBm
–123 dBc
–89 dBm
–132 dBc
703
(lower)
734
757
711
–87 dBm
–130 dBc
–81 dBm
–124 dBc
–87 dBm
–130 dBc
703
(upper)1
734
757
780
–86 dBm
–129 dBc
–80 dBm
–123 dBc
–90 dBm
–133 dBc
850
869
894
844
–86 dBm
–129 dBc
–80 dBm
–123 dBc
–85 dBm
–128 dBc
800
791
821
851
–86 dBm
–129 dBc
–80 dBm
–123 dBc
–90 dBm
–133 dBc
900, 902
935
960
910
–86 dBm
–129 dBc
–80 dBm
–123 dBc
–85 dBm
–128 dBc
180
1805
1880
1730
–80 dBm
–123 dBc
–74 dBm
–117 dBc
–80 dBm
–123 dBc
194
(PCS/AWS)
1930
2130
1730
–80 dBm
–123 dBc
–74 dBm
–117 dBc
–80 dBm
–123 dBc
194
(PCS)
1930
1990
1870
–78 dBm
–121 dBc
–72 dBm
–115 dBc
–78 dBm
–121 dBc
210
2110
2170
2050
–78 dBm
–121 dBc
–72 dBm
–115 dBc
–77 dBm
–120 dBc
260
2620
2690
2550
–75 dBm
–118 dBc
NA
–73 dBm
–116 dBc
1 For option 703, the upper band is available only in 1-port mode.

Note 
Typical values are shown. PIM Standards can vary ± 3 dB due to manufacturing variation. Record the starting value of your PIM Standard, and use that value for test equipment verification.