BIRD SignalHawk SH-36S-RM-ASL, Operation Manual, Page: 125 / 195

Measurements
111
Channel Power Measurement
Channel Power measures the Integration Bandwidth, the total power over a frequency range,
concentrated on the center frequency of the sweep. It is useful for channelized (frequency-
division multiplexed) signals. Results are shown in both total power in the channel (in dBm or
Watts), and spectral density (dBm or Watts per Hz).
Channel Power Setup
For best accuracy, set the center frequency so the signal is roughly centered before taking
measurements. In addition, the span should be 1.5 to 5 times as large as the desired channel
width.
The Channel Power Measurement can be turned on using the Start Menu or the Measure
Menu .
1. Click on the Measure Menu button ( 3 ). See Channel Power Measurement Figure .
2. Click on Channel Power: Menu Button.
3. If measurement is not already on, Click on Channel Power: On/Off option ( 1 ) to turn on
measurement.
NOTE
Underlined option is the active option.
4. Select the Integration Bandwidth (IBW) option ( 2 ).
NOTE
If a channelized band is selected from the Frequency list, this parameter is automatically
set.
5. Set the desired IBW using the mouse scroll wheel, arrow keys, or keyboard. The default
unit is MHz.
NOTE
Use the keyboard to change the IBW if the unit of measure must be changed.
6. Channel power and power density will be displayed in the measurement settings area
( 4 ) at the bottom of the display. Markers 1 and 2 will be turned on at start and stop of at
the band edges.