Anritsu has developed the PIM Master to verify if receiver interference at a cell site is due to an intermodulation product of two or more transmit frequencies, also known as passive intermodulation (PIM).
The PIM Master generates two high power tones in the transmit band of a base station and Anritsu’s family of handheld RF instruments’ PIM Analyzer measures the 3rd, 5th, or 7th order intermodulation products in the receive band coming back down the same cable. And the GPS option will record the location of the measurement.
PIM Testing versus Line Sweeping
A PIM test cannot, however, measure VSWR. This means the test set will not see an open or short condition, unless the fault displays non-linear behavior. A return loss figure that is failing will not be determined with a PIM test measurement.
Components deteriorate as they age due to a number of issues, including poor mechanical design, poor installation, and moisture ingress (which is the most significant).
On-site faults can mostly be categorized into two main types: linearity related and impedance related.
PIM testing measurements reflect the overall linearity of an antenna feed line and Line Sweep measurements reflect the overall impedance matching of all of the components in an antenna feed line. Both tests need to be performed to ensure the overall quality of an antenna feed line. Passing one type of test (PIM or Line Sweep) does not guarantee the other test will pass.
Features:
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Tx Band: 925 to 960 MHz
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IMD Band: 880 to 915 MHz
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IMD Orders: 3rd, 5th, or 7th orders (user selectable)
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Featuring 2 x 40 Watts of RF Power. Finds PIM that cannot be found by 2 x 20 Watt PIM testers
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Patented Distance-to-PIM™ (DTP) The Fastest Way to Pinpoint the Source of PIM
Measurements:
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PIM
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Noise Floor
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Distance-to-PIM (DTP)
General Specifications:
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Measurements |
|
PIM |
3rd, 5th, and 7th order intermodulation product in receive band (user selectable) |
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Noise Floor |
Rx noise floor of base station |
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Distance-to-PIM |
Distance and magnitude of multiple PIM sources |
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PIM Measurement Ranges |
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RF Test Power |
Two CW tones of 20, 30, or 40 Watts (≈ 43, 45, 46 dBm) (user selectable) |
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Transmit Frequency Range |
925 to 960 MHz |
|
3rd, 5th, and 7th Order Frequency Ranges |
880 to 915 MHz |
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Residual PIM Performance |
< -112 dBm/-155 dBc typical |
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Measurable PIM order |
3rd, 5th, and 7th order intermodulation product (if in band) |
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Distance-to-PIM |
Distance and magnitude of multiple PIM sources |
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PIM Master Connectors |
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Test Port |
7/16 DIN, female, 50 Ω |
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RF Out |
Type N, female, 50 Ω (connect to RF In on instrument) |
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10 MHz Out |
BNC, female, 50 Ω, 10 MHz (connect to Ext. Ref. In on instrument) |
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USB Interface |
Type B (connect to USB Type A port on instrument) |
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AC Power |
IEC60320 C14 |
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Power |
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Emergency Stop |
Red push button |
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AC Power |
90-240 VAC, 50/60 Hz |
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Electromagnetic Compatibility |
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European Union |
CE Mark, EMC Directive 2004/108/EC |
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Australia and New Zealand |
C-tick N274 |
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Interference |
EN 61326-1:2006 |
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Emissions |
EN 55011:2007 |
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Immunity |
EN 61000-4-2/-3/-4-4/-4-5/-4-6/-4-11 |
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Safety |
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Safety Class |
2006/95/EC, EN 61010-1 Class 1 |
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Product Safety |
IEC 60950-1 when used with Company supplied Power cable |
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Environmental |
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Operating Temperature |
-10 °C to 55 °C |
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Maximum Humidity |
95% |
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Shock |
MIL-PRF-28800F Class 2 |
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Storage |
-51 °C to 71 °C |
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Altitude |
4600 meters, operating and non-operating |
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Size & Weight |
300 mm x 425 mm x 500 mm (12 in x 17 in x 20 in) |
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Weight |
27 kg (59 lbs) |