Cordless Phone Frequencies

Here are the frequencies for the first generation 46/49MHz cordless phones.

Channel Handset Frequency Base Frequency

900MHz Cordless Phone Frequencies

Second generation 900MHz cordless phones have been allocated the frequencies between 902 and 928MHz, with channel spacing between 30-100KHz.

The following are some examples of the frequencies that example cordless phones use:

Panasonic KX-T9000 (60 Channels) Base Frequency: 902.100 – 903.870 Handset Frequency: 926.100 – 927.870

Channel Base Frequency Handset Frequency Channel Base Frequency Handset Frequency

GE model 26938GE1-C

Channel Base Frequency Handset Frequency Channel Base Frequency Handset Frequency926.7

V-Tech Tropez DX900 (20 Channels)

Base Frequency: 905.6 – 907.5 (100Khz spacing), Handset Frequency: 925.5 – 927.4

Channel Base Frequency Handset Frequency Channel Base Frequency Handset Frequency

Other 900MHz cordless phones:

2.4GHz Cordless Phone Frequencies

Third generation 2.4GHz cordless phones have been allocated the frequencies between 2.4Ghz and 2.4835Ghz, with a channel spacing of 5MHz.

The 2.4GHz cordless phone frequencies are shared with 802.11b and 802.11g wireless networks.

5.8GHz Cordless Phone Frequencies

Fourth generation 5.8GHz cordless phones have been allocated the frequencies between 5.725Ghz and 5.850Ghz.

It is important to note that some 5.8GHz cordless phones use the 5.8Ghz frequencies only for base-to-handset transmissions, while still using the 2.4Ghz frequencies for handset to base transmissions.

This split frequency technique saves battery life on the cordless phone handset because it requires more power to transmit at the higher 5.8GHz frequency than at the lower 2.4Ghz frequency.

The 5.8GHz cordless phone frequencies are shared with 802.11a wireless networks.