RDL-3000
FAMILY
USER MANUAL
70-00158-03-00
Proprietary Redline Communications © 2015
Page
106
of 254
April 17, 2015
Schedule a maintenance period if a sweep is required for an in-service system.
When performing a sweep from a subscriber, the sector controller transmitter
must be disabled during the sweep.
When performing a sweep on the sector controller, the subscribers will not
transmit during the sweep (no polling).
The channel size is selected automatically to achieve the finest resolution when
performing the sweep.
2.
Setup and Start the Sweep:
Click
Wireless
Spectrum Sweep
in the main menu.
Enter the start and end frequency for the range to be examined.
It is recommended to begin with a large step size and small sample size (No. of
acquisitions) to obtain an overview of the spectrum usage.
For example, to scan for a free 10 MHz channel in the 5735 - 5830 MHz range:
Start/Stop = 5735 / 5830
Step [MHz] = 5
No. of Acquisitions = 50
Click the
Start
button to begin the sweep. The sweep begins at the lowest (
Start
)
frequency and ends at the highest (
Stop
) frequency.
To end the sweep before the
Stop
frequency is reached , click the
Stop
button.
3.
Review the Results:
A channel is 'clear' when free of interference for at least +/
-
one-half the channel
bandwidth from the desired center frequency. For example, a 10 MHz channel
should register no interf/
-
5 MHz from the center frequency.
When a potential clear channel is identified, adjust the settings to increase the
resolution of the results:
Adjust the frequency range to the area of interest
Increase the sample size
Reduce the step size