Uniden DRX402 English Owners Manual - Page 8

The charger automatically erases the link to the old base when it registers to the new one.  Only register the charger to one base at a time. If more than one base is in registration mode at the same time, you can't control which base the charger registers to. Placing the MULTIRANGETM charger Here are a few tips for placing your MULTIRANGETM charger so that you get the clearest signal and the maximum range:  Make sure you have good reception from the base.  Put the charger at least 35 feet away from the base or any other charger. (If you put the charger on a different floor from the base, don't forget to allow 35 feet vertically, also.)  If possible, mount the charger on the wall. Picking the best spot The best spot for the MULTIRANGETM charger is as far from the base as possible while still maintaining a good signal, or near the edge of the base's coverage area. To find the edge of the coverage area: 1. Stand near the base and make a call on the handset. 2. While on the call, carry the handset away from the base towards the general area where you want to put the charger. 3. Watch the signal strength icon on the handset. Make a note where the icon drops from 4 bars to 3 bars.