SOLUTION FOR 600MHZ TO 2600MHZ
Passive intermodulation (PIM) is a well-known issue in cellular systems. If the PIM signals fall in the uplink band, they can elevate the noise floor and degrade system performance.
A challenging category of PIM to remedy is external PIM. This refers to PIM generated not in the cell site’s antenna infrastructure but rather in objects in the surrounding environment, for example, loose mounting brackets, roof flashing and structural steel beams. In such cases, downlink signals from the base station’s antenna illuminate the external PIM source, causing a PIM signal which is then re-radiated back towards the antenna and into the radio’s receiver.
Identifying the location of external PIM sources has historically been a complicated problem for mobile operators worldwide. To address this measurement challenge, Kaelus offers 1-Port PIM
FEATURES
- Complete solution from Kaelus
- The Probe and iVA are small and lightweight, allows for working in hard to access areas
- One-handed operation
- Rugged design for field application
- One GUI controls all equipment by Kaelus Unify software
- iPA has the ability to check for internal PIM on each antenna at 2x20W
- iPA provides two transmit tones at a power level of up to 20W per antenna for illuminating external PIM sources
- iPA with the Range to Fault (RTF) module can measure distance to external PIM from the antenna
- iVA provides a receiver for measuring externally generated PIM
- Direct connection from iVA to PIM Test probe
TECHNICAL SPECIFICATIONS |
| SYSTEM | |||||||||||||||
| Maximum input power into iVA | 10mW max 20MHz LTE signal or equivalent | ||||||||||||||
| iVA Sampling Rate | 1kSa per second | ||||||||||||||
| iVA: Dynamic Range | -50 to -115dBm* | ||||||||||||||
| iVA Resolution bandwidth | 20kHz | ||||||||||||||
| iVA: Displayed average noise level (RBW = 20kHz) | -115dBm typ* | ||||||||||||||
| For more detailed specifications of each component (iPA and iVA), refer to the datasheets on www.kaelus.com | |||||||||||||||
| Note: (*) 10dB improvement when using Band Pass Amplifier BPA-0707A, only available for Band 14 and Band 17 (700MHz) | |||||||||||||||
SYSTEM DIAGRAM |
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| The 1-port PIM Finder solution consists of lightweight, easy to use products that are battery powered: 1. A portable PIM Test Analyzer: iPA series 2. Range to Fault Module: RTF 3.PIM Test probe: R29-4788 4. Protection Filter 5. Cable and Antenna Analyzer: iVA-0627A 6. Kaelus Unify Software for remote control of iPA and iVA. Running on iOS/Android tablet/phone, or Windows PC |
| WARNING! RF HAZARD! The radio frequency fields near cellular antennas may exceed safe levels for human exposure. Personnel engaged in troubleshooting external PIM sources should be trained for work in radio frequency environments and use a personal RF monitor if working near active antennas. |
ORDERING INFORMATION |
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| PART NUMBER | DESCRIPTION | ||||||||||||||
| iVA-0627A | iVA Cable & Antenna Analyzer System | ||||||||||||||
| iPA series | iPA Battery Portable Passive Intermodulation Analyser | ||||||||||||||
| R29-4788 | PIM Test probe | ||||||||||||||
| iVA-SW-FI-A | PIM Finder Mode – Software upgrade | ||||||||||||||
PROTECTION FILTER |
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| PART NUMBER | DESCRIPTION | FREQUENCY RANGE | IPA MODEL | ||||||||||||
| BPA-0707A | Band Pass Amplifier – 700L / 700H Uplink Filter | 698-716MHz / 776-802MHz | iPA-0707D | ||||||||||||
| BPA-0790A | Band Pass Amplifier – 800MHz Uplink Filter | 832-862MHz | iPA-0790A | ||||||||||||
| R29-4790 | 600 MHz Uplink Filter | 663-698MHz | iPA-0600D | ||||||||||||
| R29-4798 | 700 MHz Uplink Filter | 703-748MHz | iPA-0703 | ||||||||||||
| R29-4794 | 850 MHz Uplink Filter | 824-849MHz | iPA-0850A | ||||||||||||
| R29-4799 | 900 MHz Uplink Filter | 880-915MHz | iPA-0901A | ||||||||||||
| FIL-0900A | 900 MHz Uplink Filter | 890-915MHz | iPA-0901A in co-location with 850 systems | ||||||||||||
| R29-4795 | 1750 MHz Uplink Filter | 1710-1785MHz | iPA-1800A and iPA-1921A | ||||||||||||
| R29-4796 | 1900 MHz Uplink Filter | 1850-1910MHz | iPA-1921A | ||||||||||||
| R29-4800 | 2100 MHz Uplink Filter | 1920-1980MHz | iPA-2100A in co-location with 1800 systems | ||||||||||||
| FIL-2600A | 2600 MHz Uplink Filter | 2500-2570MHz | iPA-2600A | ||||||||||||
PIM FINDER IN ACTION |
