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PIM 21

The PIM 21 is a microprocessor controlled, portable test set allowing detection of distortion components and assemblies in radio base station, in-building DAS installations and other systems transmitting radio frequencies.


Non-linearity in radio frequency assemblies causes Intermodulation Distortion (IM). The purpose of the PIM 21 test set is to specifically test for this distortion in passive signal paths, known as Passive Intermodulation Distortion or PIM. Components in coaxial feeder assemblies such as connectors, jumper cables, splitters, hybrids, filters, DC blocks and antennas can cause PIM problems if they are not manufactured appropriately or not assembled properly.






Quick Features

  • Easily identify PIM problems of system components such as antennas, feeder cables and connectors in the field.
  • Small, portable and weather-proof
  • Battery Operated
  • Adjustable level of customer specified test frequencies
  • PIM sensitivity of -153 dBc @ 850 MHz (typical -155 dBc @ 850 MHz)



Quick Specifications


PIM test Single port reflection
Test frequencies 2 custom frequencies*


Carrier Power

Cellular +20 to +33 dBm
PCS +33 dBm
Power accuracy ±1 dB/carrier
Frequency accuracy 2 ppm (typical)
Revers power protection 37 dBm/5 sec


PIM Measurements

Range -80 to -153 dBc @ 850 MHz
(-155 dBc typical)
PIM Measurement Accuracy 1 dB to -153 dBc @850 MHz
±3 dB to -155 dBc @ 850 MHz
RF Calibration Automiatic with RF Power On


Dimensions and Weight

Weight 15.6 lbs, 8 kg, nominal
Dimensions 15.5 x 12.9 x 6.0 inches
343 x 327 x 152 mm
*Manufactured to customer specific frequencies.