Robotron Pty Ltd G9P 用户手册
WiNRADiO G39DDC User’s Guide
78
Sweeper
If the Sweeper button is engaged, this changes the wide-band spectrum into a
“swept” spectrum scope.
“swept” spectrum scope.
Rather than showing the intermediate frequency 16 MHz wide spectrum in
real-time (which happens when the Spectrum button is engaged), the
sweeper draws the spectrum by quickly tuning the receiver in 10 MHz chunks,
and “gluing” these 10 MHz chunks of spectra together, to produce a
continuous spectrum. This is still done extremely fast, for the Excelsior to be
able to sweep its entire 3.5 GHz frequency range in approximately 3 seconds.
real-time (which happens when the Spectrum button is engaged), the
sweeper draws the spectrum by quickly tuning the receiver in 10 MHz chunks,
and “gluing” these 10 MHz chunks of spectra together, to produce a
continuous spectrum. This is still done extremely fast, for the Excelsior to be
able to sweep its entire 3.5 GHz frequency range in approximately 3 seconds.
The sweeper makes it possible to set the resolution bandwidth of the sweeping
(smaller RBW resulting in a finer detail) and the start and end frequencies (in
multiples of 10 MHz).