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Technical Details
10
Technical Details
FCC Part 15 Class B
Compliance
This device and its accessories
comply with part 15 of FCC rules.
Operation is subject to the
following two conditions: (1) This
device and its accessories may not
cause harmful interference, and
(2) this device and its accessories
must accept any interference
received, including interference
that causes undesired operation.
Technical Details
The is a trimode
phone that operates on both
(Code Division Multiple Access
CDMA) frequencies: cellular
services at 800 MHz and
(Personal Communication Services
PCS) at 1.9 GHz.
CDMA technology uses a feature
called DSSS (Direct Sequence
Spread Spectrum) that enables
the phone to keep communication
from being crossed and to use one
frequency channel by multiple
users in the same specific area.
This results in a 10-fold capacity
increase when compared with
analog mode. In addition, features
such as soft / softer handoff, hard
handoff, and dynamic RF power
control technologies combine to
reduce call interruptions.
The Cellular and PCS CDMA
networks consist of MSO
(Mobile Switching Office), BSC
(Base Station Controller), BTS
(Base Station Transmission
System), and MS (Mobile
Station).
* TSB-74: Protocol between an
IS-95A system and ANSI J-
STD-008
1xRTT system receives twice as
many subscribers in the wireless
section as IS-95. Its battery life
is twice as long as IS-95. High-