How many meters is the cordless phone effective?
The above distance is the actual test data obtained on the ground of open, barrier free and radio free interference. However, when the user in the actual application process, will be subject to obstacles and other reasons, making the distance will be greatly reduced.
The application of DECT (Digital Enhanced Cordless Telecommunications) cordless phone, the maximum distance is 300 meters, the use of 1.9GHz frequency, at present, some businesses known as their products using 2.4GHz frequency DECT technology, is not in fact the European DECT standard! But according to DECT standard production, the actual transmission effect is only half the DECT remember, third! With digital telephone DECT used only 1.9GHz band, Mo JS when!
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).
