R&S SMJ100A, Руководство по эксплуатации, Страница: 589 / 874

Remote Control Commands
R&S
®
SMJ100A
573 Operating Manual 1403.7458.32 ─ 14
[:SOURce<hw>]:AWGN:BWIDth:NOISe?
This command is available for modes In Additive Noise and Noise Only (
SOUR:AWGN:
MODE ADD|ONLY
) modes, queries the real noise bandwidth.
Return values:
<Noise> float
Range:
0 to 200E6
Increment: 100
*RST:
0
Example: AWGN:BWID:NOIS?
queries the noise bandwidth.
Usage: Query only
Manual operation: See "Noise Bandwidth - AWGN" on page 296
[:SOURce<hw>]:AWGN:BWIDth:RATio <Ratio>
In Additive Noise and Noise Only (
SOUR:AWGN:MODE ADD|ONLY
) modes, sets the
ratio of minimum real noise bandwidth to system bandwidth.
The overall bandwidth is calculated as follows and may not exceed the total bandwidth
specified in the data sheet:
Overall Bandwidth = System BW x Min Noise/System BW Ratio
Parameters:
<Ratio> float
Range:
1 to Max
Increment: 0.1
*RST:
1
Example: AWGN:BWID:RAT 2
sets a minimum noise/system bandwidth ratio of 2.
Manual operation: See "Minimum Noise/System Bandwidth Ratio - AWGN"
on page 295
[:SOURce<hw>]:AWGN:CNRatio <CnRatio>
In Additive Noise and CW Interferer (
SOUR:AWGN:MODE ADD|CW
) mode, sets the car-
rier/interferer ratio. The value range depends on the selected AWGN mode.
Parameters:
<CnRatio> float
Range:
-50 to 40
Increment: 0.01
*RST:
0
Default unit: dB
SOURce Subsystem