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BW/Avg
Activates the resolution bandwidth function and accesses the menu
keys that control the bandwidth functions and averaging.
This key allows you to set the resolution bandwidth as the active
Res BW
function and choose between
EMI Man SA
chosen, the bandwidths are "autocoupled" to the center frequency of the
analyzer. The relationships are:
Table 2-1
9 kHz to 150 kHz
150 kHz to 30 MHz
30 MHz to 1 GHz
1 GHz to 26.5 GHz
When
and ranges from 10 Hz to 5 MHz in a 1, 3, 10 sequence using the knob
or step keys. If an unavailable bandwidth is entered using the numeric
keypad, the closest available bandwidth in the 1, 3, 10 sequence is used.
This bandwidth will be used no matter what the other settings of the
analyzer are.
For firmware revision A.08.00 and later, the bandwidth range is from
NOTE
1 Hz to 5 MHz if you have Option 1D5.
A "#" mark appears next to Res BW on the display when it is not
coupled. To recouple the resolution bandwidth, press
Res BW (SA)
can be changed using the step keys, the knob, or the numeric keypad.
When
Key Access:
Softkey that sets the intermediate frequency bandwidth (ResBW) of
120 kHz
120 kHz. This bandwidth is used when performing electromagnetic
interference (EMI) measurements in CISPR Band C and D (30 MHz
-1 GHz).
Key Access:
Softkey that sets the intermediate frequency bandwidth (ResBW) of
9 kHz
9 kHz. This bandwidth is used when performing electromagnetic
interference (EMI) measurements in CISPR Band B (150 kHz-30 MHz).
Chapter 2
Frequency Range
(
) is chosen, the bandwidths are chosen by the user
Res BW
Man
(or press
Auto Couple, Auto All
(
) is chosen, the bandwidths are autocoupled to span.
Res BW
SA
BW/Avg
BW/Avg
,
, or
. When
EMI
Man
SA
Resolution Bandwidth
200 Hz
9 kHz
120 kHz
1 MHz
). The resolution bandwidth
Front-Panel Key Reference
BW/Avg
(
) is
Res BW
EMI
or
Res BW (EMI)
73
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