5
Spectrum Master™ MS2720T Spectrum Analyzer Introduction
Overview (continued)
Carrier to Interference (C/I) Measurement
As more 802.11 access points are installed, there is an
increasing level of interference in the 2.4 GHz and 5.8 GHz
bands occupied by this service and other devices such as
cordless telephones. This measurement capability makes it
simple for an access point installer to determine if the level
of interference is sufficient to cause difficulty for users in the
intended service area, and can show the need to change to
another access channel. The wide frequency coverage of the
Spectrum Master makes this the only spectrum analyzer you
need to install and maintain 802.11a, 802.11b and 802.11g
wireless networks.
Emission Mask
A limit line can be used as a pass/fail emission mask. A table
shows for each segment of the emission mask if the signal
passed or failed for that segment. Peak markers can be turned
on to automatically show the highest signal in each segment of
the mask.
AM/FM/SSB Demodulation
AM, narrowband FM, 25 kHz, 12.5 kHz and 6.25 kHz,
wideband FM and single sideband (both upper and lower) can
be demodulated to audio, all with proper de-emphasis. The
demodulated audio can be heard through the built-in speaker
or through a headset plugged into the 3.5 mm headset jack.
The signal to be demodulated can be anywhere in the
frequency range of the instrument and does not have to be
within the current sweep range of the instrument, nor is it tied
to a marker. The demodulation bandwidth is automatically set
for each modulation format to assure ease of operation. There
is no need to fuss with RBW and video filters to get proper
demodulation.
GPS (Option 31)
With GPS Option 31 the frequency accuracy is 25 ppb (parts
per billion) after achieving a GPS lock. After the GPS antenna
is disconnected, accuracy is maintained at 50 ppb or better for
up to three days. Also all saved measurements are GPS tagged
for exporting to maps when the instrument has a GPS fix. Two
GPS antennas are available, 2000-1528-R with a 15 foot cable
and 2000-1652-R with a 1 foot cable. Order the antenna or
antennas that meet your needs.
IQ Capture (Option 24)
Option 24, IQ Waveform Capture captures the raw data for the
user selected center frequency and for the duration of the user
selected capture length.
Mode Spectrum Analyzer
Capture Mode Single or Continuous
Trigger Free Run, External
(Rising/Falling), Delay
Maximum Capture Length 800 ms
Maximum Sample Rate 40 MHz
Maximum Signal Bandwidth 32 MHz
Internal Atomic Clock (Option 1)
The internal atomic clock provides the frequency accuracy
required for precise cellular base station measurements.
The atomic clock delivers 2 x 10
-9
initial accuracy with
1 x 10
-9
annual aging rate.
Emission Mask measurement shows pass/fail for every segment
GPS status indicator taken indoors
Location and time stamp measurements with GPS, option 31
(12 páginas)
(1 páginas)
Manymanuals.com
Manymanuals.de
Manymanuals.fr
Manymanuals.it
Manymanuals.pl
Manymanuals.cz
Manymanuals.es
Manymanuals-pt.com
Comentários a estes Manuais