After registering but prior to mounting a repeater, you can test the location to see if the signal from the base station is sufficient to handle calls. You should perform the test because the repeater might be too far away from the base, electronic devices might cause an interference, or thick walls or metal objects might block the signal.
Place the repeater as high as possible, at least six feet off the ground.
Allow at least 35 feet (10 meters) between repeaters, horizontally and vertically.
Avoid sources of electrical interference, such as office equipment or microwave ovens.
Avoid heat sources and direct sunlight.
Avoid things that can interfere with radio signals, such as metal doors, thick walls, screened rooms, niches, and cupboards.
Ensure that the wall material can hold the weight of the repeater. Never install a repeater in damaged or decaying wall material.
Ensure that a standard 120V AC wall outlet is within reach of the repeater.
If you are installing multiple repeaters, perform the following test on each repeater.
Never install electrical cords across traffic areas where they cause a trip hazard. If the cords are damaged, they can create fire or electrical hazards.
The signal strength should be at least 22 and error free. See Signal strength survey. If the signal strength or quality is too low, choose a location closer to the base station or linked repeater, or one with less obstruction.
If the repeater LED remains on and steady, the repeater is receiving a good signal from the base. You can mount the repeater in that location.
If the repeater LED flashes, the repeater is not receiving a good signal from the base. Move the repeater to another location and repeat the test. If problems persist, ensure that the repeater registers to the same base station as the handset used for the signal strength survey.