PCTEL SeeGull EXflex, Справочное руководство

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SeeGull
®
EX flex
®
Reference Manual
PCTEL, Inc., RF Solutions Page 8 Revision F
2.3. Options
Optional multi-technology measurements
available for the SeeGull EXflex are
described below. These options can be
installed at the time of purchase or later on
as a field upgradeable option with the
exception of OP640, CDMA/EV-DO
Holdover Option. Refer to section 9 for a
complete list of options available for the
SeeGull EXflex Scanning Receiver and their
part numbers. Please contact your PCTEL
sales or marketing representative for pricing
and delivery information.
Enhanced Power Scan (EPS
TM
) Option
(OP602)
EPS Mode provides customizable power
measurements, improving flexibility and
precision over RSSI and Spectrum Analyzer
measurements for highly-tuned analysis of
individual parts of the RF signal. EPS
features include:

Absolute Time Stamp

Auto and Immediate Measurement
Modes

Ability to set both Time and Frequency
parameters

Measure Frequency Spans from 7.5 kHz
to 20 MHz user selectable in multiples of
2.5 kHz

Measures Time Periods from 1 chip (50
µs) to 20,000 chips (1sec)
Spectrum Analyzer Option (OP601)
The built-in Spectrum Analyzer feature
provides an effective means to detect and
troubleshoot frequency-related problems.
The Spectrum Analyzer shows a wealth of
information about the signal spectrum that is
not obtainable from the standard channel
power measurement. The Spectrum
Analyzer measures and reports power
spectral density using frequency domain
techniques (a segmented FFT approach
that ensures various resolution bandwidths
and fast update rates), whereas RSSI
measurements use analog and digital filters
to select the right frequency band and
subsequently measure total power.
One advantage of this approach is that the
Spectrum Analyzer can analyze the fast-
changing spectrum of an unstable
transmitter. The RSSI measurement in this
case will most often show a normal smooth
picture, as it averages a limited set of data
over time. The Spectrum Analyzer,
however, if used with an appropriate
resolution bandwidth, will reveal erratic
signal behavior due to its fast update rate
and unaveraged data.
The user may set the resolution bandwidth
to 5, 10, 20, 40, 80 or 160 kHz or 2, 4 or 8
MHz. Output data may be set to an average
of 1, 2, 4, 8, or 16 sweeps.
LTE Power Analysis (OP632)
LTE Power Analysis is available for TD-LTE
and provides power of the resource block
and slot of the TD-LTE frame. This enables
users to identify interference that is time
(slots) or frequency (RBs)-selective, to
obtain a snapshot of overall traffic levels,
and to determine whether base station is
properly using the available resources.
Layer 3 Options
(OP620 All Layer 3 Options)
(OP620-GSM)
(OP620-WCDMA)
(OP620-FD-LTE)
(OP620-TD-LTE)
(OP620-TD-SCDMA)