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Interference Analyzer (Option 25) 3-6 Received Signal Strength Indicator (RSSI)
Spectrum Analyzer MG PN: 10580-00349 Rev. M 3-5
3-6 Received Signal Strength Indicator (RSSI)
RSSI is useful for observing signal strength at a single frequency over time.
Procedure
The following procedure demonstrates a common Interference Analyzer RSSI setup. To select
Interference Analyzer mode:
1. Press the
Measurements
main menu key, then press the
RSSI
submenu key to bring up
the RSSI display. Press the
RSSI
key again to open the RSSI menu.
2. Press the
Time Interval
submenu key to set the time between adjacent measurement
points. This time may be set from 70 ms to 1 minute.
3. Press the
Time Span
submenu key to set the overall time span for the RSSI
measurement. This time can be set from zero, to give manual control of the time span,
to a maximum of seven days. After the specified time span, the measurement is halted.
Depending upon the time interval selected, the data will scroll to the left once the trace
fills the screen.
4. Press the
Auto Scale
key to automatically set the reference level and scale factor to
place the trace on the screen.
5. To store the RSSI data, press the
Record On/Off
submenu key to turn on data logging.
The data is named Log – followed by the time at which the data was stored. Each
screen full of 551 data points will be stored as a separate display, and up to seven days
of data can be saved. The instrument saves the data in the saved trace directory and it
can be recalled by selecting recall trace measurement.
Note
The Time Span only captures the last display, not the entire time of the Time Span.
Use a longer time interval to extend the effective trace capture time.
Figure 3-3. Interference Analyzer RSSI