PRODUCT START GUIDE

Preconditions:

• Conduct investigation to exclude other forms of interference (internal PIM, active intermodulation, ect.)

• Inform on-site test technician details for Rx frequency where the IM3 issue is occuring

• Cell site causing the PIM issue needs to be transmitting continuously (artifical loading can be initiated if needed) or a dedicated PIM tester will be required

Step 1 – Setup – Assemble the PIM hunting kit:

1. Connect PIM filter matching Rx frequency of interest to the PIM probe

2. Connect N-type to SMA adapter to the PIM filter

3. Connect Spectrum Compact to the PIM probe

4. Connect Headphones using the USB-C to 3.5mm adapter

Step 2 – Configure measurement parameters on the Spectrum Compact

1. Configure the audio function (optional) for audible indication once signal levels exceed threshold

2. Set Resolution Bandwidth (RBW) and Video Bandwidth (VBW)

3. Switch ON the Low Noise Amplifier (LNA)

4. Set the Zero-Span to the IM3

5. Adjust the audio indication threshold level

Step 3 – PIM Hunting

Test technician begins touching PIM probe along suspected structural elements. Monitoring the audible and visual indications from the Spectrum Compact PIM hunting kit pinpoints the external PIM source. Once identified, begin mitigation procedures to repair, replace, or remove the interfering elements.

(FOR MORE INFORMATION CLICK ON THE IMAGE)