User's Guide

12/6/2019
14
The QRE-4K unit is a device that extends the standard 100 meter cable length from NU to CU by an additional 100
meters. It is inserted in-line between the NU and CU, and requires no external power. The RJ45 connectors are on
each side (two per side).
Donor Antennas
The donor antennas are used to provide off-air signals to individual carrier donor input ports. The objective is to
provide the best quality carrier signals to the NU. A variety of donor antennas are available from Nextivity. The
right donor antenna choice can make the difference between a good outcome and a great outcome. Please refer to
other antenna-specific documents for choosing the right donor antenna.
Cel-Fi LPDA-R Antenna
Model Number: A62-V44-200
Figure 8. Using QRE-4K
Figure 9. Donor Antenna Connection