Yaesu FT-991 Operating Manual page 4

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eneral escription
Microphone Amplifier that includes
Parametric Equalizer (see page 63.)
The microphone amplifier equalizer feature is equipped
with a three-stage parametric equalizer that can alter the
Low, Mid, and High frequencies of the audio separately;
this feature permits the bandwidth and gain for each part of
the audio spectrum to be precisely adjusted independently.
High Speed Spectrum Scope (see page
40.)
The spectrum scope function provides a visual display of
the intensity and distribution of signals across the band .
When using the ASC (Automatic Spectrum-Scope Con-
trol) mode, the scope spectrum is automatically swept in
response to the movement of the main tuning dial; the
scanned spectrum signal distribution can be observed in
real-time.
High speed antenna tuner (see page
61.)
The transceiver is equipped with the relay switching high
speed digital tuner which supports 1.8 MHz to 50 MHz.
The large 100-channel tuning data memory allows im-
mediate recall of the optimum matching conditions for
previously tuned frequencies.
Optional Five Channel Message Memory
(voice memory) (see page 68.)
You can use the 5 channel voice memory function which
is useful for operating in contests, etc. This voice memory
enables recording of up to 20 seconds of audio for each
message you want to send.
Custom selection (C.S) button (see page
37.)
This feature lets you select any Menu item for one-touch
access via the C.S button.
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