Rohde & Schwarz FSV3000, Руководство пользователя

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Measurements and results
R&S
®
FSVA3000/ R&S
®
FSV3000
159 User Manual 1178.8520.02 ─ 08
Number
of adj.
chan. Measurement results
… …
12
●
Channel powers
●
Power of the upper and lower adjacent channel
●
Power of all the higher and lower channels (alternate channels 1 to 11)
In the R&S FSV/A display, only the first neighboring channel of the carrier (TX) channel
is labeled "Adj" (adjacent) channel; all others are labeled "Alt" (alternate) channels. In
this manual, "Adjacent" refers to both adjacent and alternate channels.
The measured power values for the TX and adjacent channels are also output as a
table in the Result Summary window. Which powers are measured depends on the
number of configured channels.
For each channel, the following values are displayed:
Label Description
Channel Channel name as specified in the "Channel Settings" (see "Channel Names"
on page 182).
Bandwidth Configured channel bandwidth (see "Channel Bandwidth" on page 180)
Offset Offset of the channel to the TX channel (configured channel spacing, see "Channel
Bandwidth" on page 180)
Power
(Lower/Upper)
The measured power values for the TX and lower and upper adjacent channels. The
powers of the transmission channels are output in dBm or dBm/Hz, or in dBc, relative
to the specified reference TX channel.
Retrieving Results via Remote Control
All or specific channel power measurement results can be retrieved using the
CALC:MARK:FUNC:POW:RES?
command from a remote computer (see
CALCulate<n>:MARKer<m>:FUNCtion:POWer<sb>:RESult?
on page 862). Alter-
natively, the results can be output as channel power density, i.e. in reference to the
measurement bandwidth.
Furthermore, the measured power values of the displayed trace can be retrieved as
usual using the
TRAC:DATA?
commands (see
TRACe<n>[:DATA]
on page 1162). In
this case, the measured power value for each sweep point (by default 1001) is
returned.
For a full list of remote commands for ACLR measurements, see Chapter 12.5.3.9,
"Retrieving and analyzing measurement results" , on page 912.
Channel power and adjacent-channel power (ACLR) measurement