It can avoid PIM if only using 4T4R for 700M or 800M band, but not for 900M band so that two ports are used for MTN 900 Tx and the other two ports are used for CC 900 Tx.My concern with this solution is that there is far more power than needed and the tower load will be too high. Whereas another vendor, for example, already has a B8+B28 DB 4T4R 4x80W RRU which would be much more suited, and I expect cheaper, to deploy.