ICOM IC-746PRO Manuale Utente

5

47

■

The band scope function allows you to visually check
signal condition around a specified frequency. The IC-
746PRO’s band scope function can be used in any op-
erating mode and frequency band.

The band scope measures receive signal conditions
over a specified range on either side of a selected fre-
quency in either VFO or memory modes.

q

Rotate the tuning dial to tune a frequency.

w

While 

M1

is selected, push [F5

SCP

] to select the

band scope menu.

• Starts sweeping automatically with the previously se-

lected sweeping step. 

• During sweep, received signals cannot be heard.

e

Push [F5

STEP

] several times to select the desired

sweep step.

r

Push [F1] to start sweeping, then stop automatically
after sweeping.

• Push [F1] for 1 sec. to start continuous sweeping. In this

case, it is necessary to push [F1] to stop sweeping.

• During sweep operation “

” appears and received

signals cannot be heard.

• If there is a lot of signal noise, turn the preamp OFF and

the attenuator ON to reduce the signal input level and
improve the readability of the band scope.

t

When rotating the tuning dial and finding a signal
you wish to communicate on, simple communicate
normally.

• If you want to return to the previous frequency (before

rotating the tuning dial), push [F3] for 1 sec.

• If the selected frequency is set outside of the sweeped

range, 

flashes.

y

While receiving, if you want to update the band con-
ditions, repeat steps 

e

and 

r

as above.

“   ” or “   ”

0 . 5 k

S T E P

Sweep indicator
Band scope indicator
Frequency indicator mark
Sweep step indicator

While the band scope is “sweeping,” “

” appears; while stopped “

” appears. Received

audio is not emitted from the speaker while the band scope is “sweeping.”

Indicates the relative strength of signals and their location in relation to the center (displayed)
frequency. Signal strength is relative to the S-meter level, S1 to S9, with each vertical dot in the
band scope indicator equal to one segment of the S-meter. Signal activity is measured ±30
steps from the center frequency with each step equal to the selected sweep step.

After a sweep, indicates the relative position of the selected frequency. When the selected fre-
quency is outside of the sweep range, 

indicator flashes. After changing the fre-

quency, push [F3] for 1 sec. to automatically return to the center frequency.

Indicates the selected sweep step. 0.5, 1, 2, 5, 10, 20 and 25 kHz are selectable. Each dot of
the band scope indication is approx. equal to the selected sweep step.

“   ” or “   ”

Sweep step selection

Sweep start/stop

O . 5 k

S T E P

O . 5 k

S T E P

Sweep indicator