What is the effective distance of a cordless telephone?
In theory, there are so many, but we actually have interference signals, there are a lot of signal separation, so only about 100 meters
Cordless telephone is a wireless duplex mobile telephone device that can enter PSTN. It consists of a landline connected to the PSTN subscriber line and one or more handheld cordless telephones that perform the function of the ordinary telephone within a defined range.
In the early days of radio technology, cordless phones used 900MHz more frequently, and merchants claimed the maximum distance was 50 meters. The actual distance was 30 meters without interference, and the effective distance was good. Cordless telephone high frequency radio technology, multi 2.4GHz and 5.8GHz frequency, the maximum distance of 50 meters at present most of the most popular is the use of 2.4GHz ISM cordless telephone band, using frequency hopping spread spectrum (FHSS) or direct sequence spread spectrum (DSSS).