SignalHawk™ PC and Rack Mount Models
53
Adjacent Channel Power Measurement
Adjacent Channel Power measures the relative power of frequency bands
adjacent to a central channel. This is often used to identify power leakage from
the center channel into the adjacent channels. The total power in the central
(main) channel is displayed in dBm
(Ch Power), and the power in the adjacent channels is displayed as dB below
and above the main channel power (Dn ACPR and Up ACPR).
Note:
For best accuracy, set the central frequency so the signal is
centered before taking measurements. In addition, set the span so
the central, upper, and lower channels are all shown on the screen.
Note:
If a channelized band is selected from the Frequency list,
these parameters are automatically set.
1.
Set the width of the central channel.
Note:
The central channel can be set to a different frequency
width than the adjacent channels, but both adjacent channels have
the same width.
2.
Set both adjacent channels.
3.
Set the Center-to-Center channel spacing.
Note:
Channel spacing is the distance from the central channel’s
center frequency to the adjacent channel’s center frequency. If
there is no guardband between channels, the channel spacing
should be half (channel width + adjacent channel width).
4.
Enter the desired bandwidth in each variable.
5.
Select the desired unit of measurement.
Note:
Pressing Enter will default the Unit to MHz.
Note:
All 6 markers will be used to show the edges of the central,
upper, and lower channels.
Summary of Contents for SignalHawk SH-36S-PC
Page 26: ...SignalHawk PC and Rack Mount Models 11 Figure 7 Select DSP Device List ...
Page 67: ...Measurements 52 Figure 41 Example Channel Power Integration Bandwidth STEP 2 STEP 3 ...
Page 116: ...SignalHawk PC and Rack Mount Models 101 Figure 75 Menu Map BW Sweep Menu All Measurements ...
Page 117: ...Menu Maps 102 Figure 76 Menu Map Amplitude All Measurements ...
Page 118: ...SignalHawk PC and Rack Mount Models 103 Figure 77 Menu Map Measurement All Measurements ...
Page 119: ...Menu Maps 104 Figure 78 Menu Map Mark Limit Menu All Measurements ...
Page 120: ...SignalHawk PC and Rack Mount Models 105 Figure 79 Menu Map File Help All Measurements ...
Page 121: ...Menu Maps 106 Setup Function Menu Maps Figure 80 Map Setup Mode Main Screen ...
