Simple Band Scope - Icom IC-7100 Instruction Manual

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5
FUNCTIONS FOR RECEIVE

Simple Band Scope

The Band Scope function allows you to visually check
the location and strength of signals around a specifi ed
frequency.
The IC-7100's Band Scope function can be used in any
operating mode and any frequency band.
INDICATOR
While the band scope is sweeping, "X…" is displayed; while stopped, "Z„" is displayed.
Sweep icon
Received audio is not heard from the speaker while the band scope is sweeping.
Displays the signal location and strength in relation to the center (displayed) frequency. Signal
Band scope strength is relative to the S-meter level, S1 to S9+30 dB, with each vertical dot in the band scope
display indicators 1 to 15 dots. Between +30 dB to +60 dB are also displayed by 15 dots. Signal activity is
measured ±30 steps from the center frequency, with each step equal to the selected sweep step.
After a sweep, displays the relative position of the reference frequency. When the reference
Frequency
frequency is outside of the sweep range, " " or " " blinks. After changing the frequency, touch
display mark
[RCL](D) for 1 second to automatically return to the center frequency.
Sweep step Displays the selected sweep step. Steps of 0.5, 1, 2, 5, 10, 20 and 25 kHz are selectable. Each dot
display of the band scope display is equal to the selected sweep step.
The band scope displays the receive signal location and
strength over a specifi ed range on either side of a selected
frequency, in either the VFO or memory modes.
q
Rotate the Dial to select a frequency.
w
Push (C) one or more times to select the
MENU
"M-3" screen (M-3 menu).
e D) for 1 second to display the
Touch [SCOPE](
"SCOPE" screen (Band Scope).
• Automatically starts sweeping with the previously select-
ed sweeping step.
• During a sweep, received signals cannot be heard.
r D) one or more times to select the
Touch [STEP](
desired sweep step.
• 0.5, 1, 2, 5, 10, 20 and 25 kHz are selectable.
t Z„](D) to start sweeping, then automati-
Touch [
cally stop after sweeping.
• Touch [Z„](D) for 1 second to start continuous sweep-
ing. In this case, touch [X…](D) to stop the sweeping.
• During a sweep, "X…" is displayed but received signals
cannot be heard.
• If there is a lot of signal noise, turn OFF the Preamplifi er
to reduce the signal input level, and, if necessary, turn
ON the Attenuator to improve the readability of the band
scope.
y
Rotate the Dial to fi nd a signal that you wish to com-
municate with. If you fi nd the signal, communicate in
the normal way.
• If you want to return to the frequency you were using
before rotating the Dial, touch [RCL](D) for 1 second.
• If the selected frequency is set outside of the sweep
range, " " or " " blinks.
u
If you want to update the band conditions while re-
ceiving, repeat steps r and t.
Blinks when the reference frequency
is outside of the sweep range.
Band scope display Frequency display mark
DESCRIPTION
Sweep start/stop
Sweep icon
NOTE:
If you select a large sweep step, a wide frequency
range can be displayed on the band scope, but some
signals may be skipped and not displayed.
5-14
Sweep step
display
Touch [SCOPE]
Sweep step selection