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If the peak list is stored in spectrometer mode in advance, receiver mode
can directly access those data by selecting Peak List in the pic above, just like
the pic below shows.
No matter where the frequency comes from, channel or peak list, user
should push it to VFO if user wants to adjust the parameters temporarily.
Otherwise, check whether it's using A or B channel. If not, press VFO on
the menu and select VFOA or VFOB, whichever the user needs. We choose
VFOB here. The settings of channel A and B are different from each other. The
user can specify them in advance and switch instantaneously between two
channels.
In VFO mode, user can press CENT button, input the desired frequency
through keyboard, like 94, and select MHz unit. Directly clicking the ENTER
button would attach a MHz as well, since it's default unit.
(7) Set the gain control method. There are two gain control methods, ALC,
which adjusts itself according to the input signal level. MLC, adjusts according
to REF. Usually ALC is adopted. This setting locates in LEVEL-GAIN, once ALC
is pressed this method would be activated. After that, the bottom-left part of
the spectrum would display 'ALC', the value follwing is hysteresis band, which
can be ignored if gain oscillation has not occured.
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