SeeGull
®
MX Hardware Reference Manual
PCTEL, Inc.
Page 5
Rev. K
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 or 80 kHz. Output data may
be set to an average of 1, 2, 4, 8, or 16
sweeps.
LTE eMBMS (OP245)
LTE eMBMS monitoring is available for FD-
LTE. These measurements verify the
correct setup by comparing collected data
on eMBMS subframes to Layer 3
messages. It verifies there are no
overlapping Area IDs and detects
synchronization problems. We provide a
custom measurement, Cluster ID, to
determine out of network interfering PCIs or
unsynchronized cell. It also verifies proper
operation and coverage for each MBSFN
CINR, RSRP, RSRQ etc.
Period, offset, # of subframes
Blind Scan Options
(OP521 All Blind Scan Technologies)
(OP521-GSM)
(OP521-WCDMA)
(OP521-FD-LTE)
(OP521-TD-LTE)
(OP521-CDMA)
(OP521-EVDO)
Blind Scan is available for LTE FDD, TD-
LTE, UMTS [WCDMA/HSPA(+)], GSM,
CDMA and EV-DO technologies. This
feature scans the selected band and
provides the active channel numbers. Blind
Scan is useful for conducting a full band
network search where prior knowledge
about active channels is incomplete or
unknown. It is also beneficial for network
benchmarking to obtain a first-glance view
of the RF infrastructure density and
configuration.
LTE Power Analysis (OP516)
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
(OP522 All Layer 3 Options)
(OP522-GSM)
(OP522-TD-LTE)
(OP522-FD-LTE)
(OP522-WCDMA)
