Appendix H

Technical specifications

RF frequency band

5857.2 MHz — 5865.9 MHz

(handset to telephone base)

 

 

 

RF frequency band

912.75 MHz — 917.10 MHz

(telephone base to handset)

 

 

 

Channels

30

 

 

Modulation

FM

 

 

Operating temperature

32°F — 122°F

 

0°C — 50°C

 

 

Telephone base voltage

104 — 129Vrms

(AC voltage, 60Hz)

 

 

 

Telephone base voltage

DC7.5V @250mA

(AC adapter output)

 

 

 

Handset voltage

DC3.1 — 4.3V 400mAh

 

 

Replacement battery

3.6V 400mAh Ni-Cd

 

 

5.8 GHz analog technology

Dual band transmission combines the best of 5.8 GHz and 900MHz analog technologies to provide quality performance and complete signal coverage for a standard home, while not interfering with wireless routers.

Telephone operating range

This cordless telephone operates with the maximum power allowed by the Federal Communications Commission (FCC). Even so, the handset and telephone base can communicate over only a certain distance - which can vary with the locations of the telephone base and handset, the weather, the layout, and the construction of your home or office.

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AT&T EL42258, EL42208, EL42308 user manual Technical specifications, GHz analog technology, Telephone operating range