R&S FSW Series, Руководство пользователя

Страница: 190 / 1450

Measurements and Results
R&S
®
FSW
190 User Manual 1173.9411.02 ─ 43
Activate Gaps ..............................................................................................................190
Gap Mode ................................................................................................................... 190
Gap Channel Definition ............................................................................................... 190
└ Minimum gap size to show Gap 1/ Minimum gap size to show Gap 2 ..........191
└ Number of Lower Gap Channels .................................................................. 191
└ Number of Upper Gap Channels .................................................................. 191
└ Gap Channel Spacing ...................................................................................191
└ Gap Channel Bandwidths ............................................................................. 192
└ Weighting Filters ........................................................................................... 192
└ Limit Checking .............................................................................................. 193
Activate Gaps
If enabled, the gap channels are displayed and channel power results are calculated
and displayed in the Result Summary.
Remote command:
[SENSe:]POWer:ACHannel:AGCHannels
on page 867
Gap Mode
In "Auto" mode, upper and lower gap channels are configured identically, so only two
channels need to be configured (gap 1, gap 2). Gap channels are configured identically
for all gaps, if more than two sub blocks are defined. Depending on the defined mini-
mum gap size, the actual number of evaluated gap channels is determined automati-
cally.
In "Manual" mode, up to four channels can be configured individually for each gap. If
enabled, the configured gap channels are always evaluated, regardless of the gap
size.
Remote command:
[SENSe:]POWer:ACHannel:GAP<gap>:MODE
on page 867
Gap Channel Definition
Between two sub blocks in an MSR signal, two gaps are defined: a lower gap and an
upper gap . Each gap in turn can contain two channels, the gap channels .
By default ("Auto" gap mode, see "Gap Mode" on page 190), the channels in the upper
gap are assumed to be identical to those in the lower gap, but inverted. Thus, you only
have to configure two gap channels in the R&S
FSW MSR ACLR measurement. All
other gap channels are configured automatically.
In manual gap mode, you can define up to four different gap channels per gap individu-
ally. Each gap is configured on a separate subtab. Only gaps between defined sub
blocks are available. If only one sub block is defined, gap channels cannot be defined
manually.
Gap channels are indicated using the following syntax:
●
The names of the surrounding sub blocks (e.g. "AB" for the gap between sub
blocks A and B)
●
The channel name ("Gap1" or "Gap2")
●
"L" (for lower) or "U" (for upper)
Channel Power and Adjacent-Channel Power (ACLR) Measurement