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The IMT-2000 is a third-generation mobile telephone system
used to implement increased data transfer speeds, improved
voice quality, and international roaming service. The IMT-2000
utilizes a broadband RF digital modulation technique for
high-speed data transfer, adopts a multicarrier system to
accommodate growth in the number of users, and incorporates
other new technologies. In an environment for mobile phone
systems, measuring instruments must have higher performance
and, at the same time, the flexibility required for developing
new communication systems and responding to changes in
communication specifications.
The R3477 signal analyzers are high-performance
spectrum analyzers that have been developed to meet these
requirements. With our proprietary RF technology, the signal
analyzers achieve an average display noise level of –158
dBm*1 and third-order intermodulation distortion
(TOI) of +26 dBm*2. The wide dynamic range that
they can measure is unprecedented. Their noise correction
function enables measurement of a wide dynamic range of –86
dBc (representative value), especially useful in measurement
of the adjacent channel leakage ratio (ACLR) of 3GPP (W-CDMA).
In addition to RF measurement, the R3477 has a broadband
modulation analysis function (25 MHz bandwidth) as standard.
By adding signal analysis options, each of which is dedicated
to a different communication system, the R3477 provide
expanded functionality and can be used as a transmitter
tester.
*1 Representative value for RBW of 1 Hz, and a
frequency of 1 GHz,
when the
built-in preamplifier is off
*2 Representative value at a
range of 2 GHz to 3.3 GHz
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5 X
10-9/day