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C O U P L E D F U N C T I O N
Another use of manual resolution bandwidth is for better sensitivity over a given frequency span.
The low level intermodulation products of a signal
needs to be measured. With the functions coupled,
the analyzer noise may mask the distortion products.
Reduction of the noise level by 10 dB (increased sensi-
tivity) is achieved by decreasing the bandwidth by a
factor of 10.
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-
(THRESHOLD has been activated to clarify the dis-
play. 1
The sweep time automatically slows to maintain absolute amplitude calibration if m is coupled.
VIDEO BANDWIDTH
bandwidth. The bandwidths that can be selected are 1 Hz, 3 Hz, 10 Hz, 30 Hz, 100 Hz, 300 Hz, 1 kHz, 3 kHz, 10
V I D E O B A N D W I D T H
Manual Operation
7 1
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