Operation Manual

Page 41FT-991 OperaTing Manual
convenience features
Sweep Mode
Threesweepmodesareavailableforthescopefunctionasdescribedbelow.
MANUAL Mode
Touch
[
SWEEP
]
ontheLCDtosweepacrossthebandonetime,anddisplaybandconditions.
Continuous Sweeping Mode
Touch and hold
[
SWEEP
]
ontheLCDtomutethereceiverbeginthecontinuoussweepoperation.Thespectrum
scope will start sweeping thebandsegment continuously. While rotating themaindial, you can continuously
monitorthebandcondition.
To stop sweeping, touch
[
SWEEP
]
ontheLCDagain.
ASC (Automatic Spectrum-Scope Control) Mode
Quickly rotate the main dial to mute the reception sound. The spectrum scope will automatically start sweeping
andcontinuesweepinguntilyoucompletelystoprotatingthemaindial.Whileobservingthedisplay,movethe
dialclosetothedesiredfrequency.Stopturningthemaindialtostopthespectrumscopecompletely,andthen
youcanhearthereceivedsignal.Nowyoumayslowlyrotatethemaindialtotuneinthereceivedsignalwhile
listeningtothereceiveraudioandthesweepingisdisabled.

 YoucanchangetherotationspeedofthemaindialtoswitchtosweepingmotionintheMenuitem“
119 ASC
DIAL SPEED
”.
Scope