Spectrum Sweep Chart - Redline RDL-3000 User Manual

RDL-3000

Spectrum Sweep Chart

Frequency (MHz): Center frequency of the scanned channel.
Ave (dBm): Average measured signal for all samples.
Max (dBm): Maximum measured signal for all samples.
Bar Graph: Graph of average (dark green) and peak (light green) results.
Performing a Sweep
Prepare the RDL-3000:
1.
For PMP sector controllers, the transmitter is disabled automatically during a sweep.
Note: To run a sweep from a PMP Subscriber location, the sector controller
transmitter must be disabled for the duration of the test.
Click
2.
using the smallest available channel with a step size of 1/2 the planned channel
size (e.g., use a 5 MHz step size when scanning for a free 10 MHz channel). For
example:
Start/Stop = 5735 / 5830
Step [MHz] = 5
No. of Acquisitions = 10
Click Start button to begin the sweep.
3.
Review the results. A channel may be considered 'clear' when free of interference
4.
for at least +/- one-half the channel bandwidth from the desired center frequency.
For example, a 20 MHz channel should have no interference detected for at least
+/- 10 MHz from the candidate channel.
When a potentially clear channel is identified, reduce the frequency range and step
size while increasing the sample size to monitor the channel over a longer period.
70-00158-01-DRAFT
User Manual
Wireless Spectrum Sweep in the main menu. It is recommended to scan
Proprietary Redline Communications © 2010 Page 87 of 142 November 25, 2010