DECT Frequencies, Channels & Frequency Bands
Although the DECT standard specifies the frequency bands for DECT usage, there are different band allocations globally because of spectrum usage.
DECT cordless telephones includes:
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The DECT channel frequencies most commonly found between 1880 - 1900 MHz. This allocation was defined in the original standard and is the band that is normally accepted for this form of cordless phone technology.
As can be imagined, it is not always possible to reserve the same band of frequencies globally and therefore there are some differences according to the country in which the DECT phones are used. The different settings are determined during manufacture and the phones shipped accordingly.
DECT frequency bands
This DECT frequency allocation is the most widespread and used in Europe. This DECT spectrum is unlicensed and technology exclusive, and this ensure ensures almost interference free operation. The use of these DECT frequencies allocated on a primary basis contributes to the very high spectral efficiency of the technology.
The bands 1900 MHz to 1920 MHz and 1910 MHz to 1930 MHz are also in common use as DECT frequencies in many countries outside Europe. In the US the DECT frequency allocation is 1920-1930 MHz. This is known as UPCS band. However this DECT frequency allocation is not an exclusive frequency allocation, but it is generally sufficiently free of other users to achieve similar interference-free operation.
Channel spacing is typically 1.728 MHz.
| DECT Frequency Bands
|Frequency Band||Countries & Details|
|1880 – 1900 MHz||Europe, South Africa, much of Asia, Hong Kong, Australia, and New Zealand (10 channels)|
|1786 – 1792 MHz||Korea (3 channels only)|
|1880 – 1895 MHz||Taiwan (8 channels)|
|1893 – 1906 MHz||Japan (J-DECT)|
|1910 – 1920 MHz||Brazil (10 channels)|
|1910 – 1930 MHz||Much of Latin America excluding Brazil.|
|1920 – 1930 MHz||USA & Canada|
The DECT frequency allocations in Europe of 1900 - 1920MHz are shared with shared with UMTS TDD, while the DECT frequencies between 1920 - 1980 are shared with shared with the uplink of UMTS FDD.
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