Agilent Technologies N1996A-503 User Reference page 97

about how Auto Tune operates, see
BW
Activates the resolution bandwidth function and displays the
Key Path
Res BW
Selects the 3.01 dB resolution bandwidth (RBW) of the analyzer in 10% steps from 10 Hz to
200 , plus bandwidths of 250
kHz
A # mark appears next to Res BW on the bottom of the analyzer display when it is not
coupled. To couple the resolution bandwidth, press Res BW (Auto).
NOTE
When measuring pulsed RF signals, set the RBW to less than 0.3 times
the pulse repetition frequency (PRF). By keeping the RBW < 0.3 x PRF,
the analyzer will be making narrowband ("line mode") measurements.
NOTE
For applications that require 6 dB resolution bandwidths, it is possible
to use an equivalent 3 dB resolution bandwidth. Because the analyzer
has Gaussian RBW, the equivalent 6 dB bandwidth of any RBW filter
can be determined using the following formula: 6 dB RBW = 3 dB RBW
x 1.414. For example, if a 6 dB RBW of 100
equivalent 3 dB RBW Filter would be 100
closest RBW filter for the analyzer that would be used is 68
Remote Command
Example
Restrictions and Notes
Chapter 3
"Auto Tune" on page
Front-panel key
, 300 , and 1, 3, or 5
kHz kHz
[:SENSe]:OBWidth:BANDwidth|BWIDth[:RESolution]
<freq>
[:SENSe]:OBWidth:BANDwidth|BWIDth[:RESolution]?
BAND:RES 3MHz
BAND:RES:AUTO OFF
If an unavailable bandwidth is entered with the numeric
keypad, the closest available bandwidth is selected.
Occupied Bandwidth Measurement
36.
Res BW
key.
.
MHz
is required, the
kHz
/1.414 = 70.7
kHz kHz
kHz
Mode
. The
.
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