SITE MASTER S251C FOR 2-PORT/TOWER TOP APPLICATIONS
4
Performance enhancing design trends such as high
sector-to-sector isolation, tower-mounted amplifiers and
duplexed antennas add new complexities to site installation,
deployment, maintenance and troubleshooting. To help
simplify performance verification for these systems, a second
test port for isolation, gain and insertion loss measurements
is required. Addressing this need, the Site Master S251C
features a second test-port for testing sector-to-sector
isolation, tower-mounted amplifiers and duplexed antennas.
Gain
The Site Master S251C, features a selectable output power
at +6 dBm or –30 dBm and an optional, built-in Bias Tee, to
enable two-port insertion gain measurement of Tower
Mounted Amplifiers (TMA) without the need of an external
supply through
the PDU (Power
Distribution Unit)
and an external
attenuator. This
greatly simplifies
the technician’s
task of verifying
amplifier and
system performance during installation or periodic
maintenance and troubleshooting intervals. Site Master’s
industry leading high RF interference immunity allows test
signal injection
between antennas
with a minimum of
interference induced
distortion and is
designed to perform
both installation and
maintenance tests
from ground level.
Isolation
Improving isolation between antenna sectors can reduce
cell-to-cell RF Interference and improve system coverage
and capacity. To
address this measure-
ment requirement,
the Site Master
S251C features high
dynamic range,
which ensures that
antenna isolation is
accurately measured
during deployment
and during periodic
maintenance
intervals – including the extremely high >90 dB isolation
ranges required at RF-RF repeater sites.
Measuring antenna isolation during periodic maintenance
intervals conveniently verifies antenna position after harsh
weather. If the antenna has been moved from the installed
mounting angle, the change in side lobe and back lobe
coupling magnitudes between the antennas causes a clear
performance change. Tx-Rx isolation of duplexers and filters
is easily tested with Site Master’s >90 dB dynamic range.
Filters are easily aligned and verified to manufacturer’s
specifications.
Site Master’s high dynamic range enables
LNA measurements at ground level.
Accurately measure antenna isolation with
Site Master’s high dynamic range.
Amplifier Gain Test Measurement.
(5 paginas)
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