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45
5
RECEIVE AND TRANSMIT
■
Spectrum scope screen
This function allows you to display the relative
strengths of signals around the center frequency. The
span can be set to ±12.5 kHz, ±25 kHz, ±50 kHz and
±100 kHz. Ideal for monitoring band conditions in an
instant.
q
Push [EXIT/SET] several times to close a multi-
function screen, if necessary.
w
Push [(F-1)SCOPE] to select the scope screen.
e
Push [(F-1)SPAN] several times to select the
scope span.
r
Push [(F-2)ATT] several times to activate an atten-
uator or turn the attenuator OFF.
• 10, 20 and 30 dB attenuators are available.
t
Push [(F-3)MARKER] several times to select the
marker (sub readout or transmit frequency) or turn
the marker OFF.
• “TX MARKER” displays the marker at the transmit fre-
quency.
• “SUB MARKER” displays the marker at the sub readout
frequency.
y
Push [(F-4)HOLD] to freeze the current spectrum
waveform.
• “HOLD” appears while the function is in use.
u
Push [EXIT/SET] to exit the scope screen.
• Spectrum scope during transmitting
The spectrum scope shows the transmit signal wave-
form while transmitting. This can be deactivated if de-
sired.
When “OFF” is selected, the spectrum scope holds
the received waveform while transmitting and does
not show the transmit waveform.
q
Call up the scope screen as described at left.
w
Push [(F-5)SET] to select the spectrum scope set
mode.
e
Push [(F-1)
∫
] to select the “Scope during Tx” item.
r
Rotate the tuning dial to display the spectrum
scope while transmitting or not.
t
Push [EXIT/SET] to exit spectrum scope set mode.
• Maximum level hold function
The spectrum scope shows the peak level holding
function. Peak levels are displayed in the background
of the current spectrum in a different color until the re-
ceive frequency changes. This can be deactivated if
desired.
q
Call up the scope screen as described at left.
w
Push [(F-5)SET] to select the spectrum scope set
mode.
e
Push [(F-2)
√
] to select the “Max Hold” item.
r
Rotate the tuning dial to turn the peak level holding
function ON or OFF.
t
Push [EXIT/SET] to exit spectrum scope set mode.
If a strong signal is received, a ghost waveform
may appear. Push [(F-2)ATT] several times to acti-
vate the spectrum scope attenuator in this case.
DEF
DEF
é
è
VOX
VOX
OFF
OFF
COMP
COMP
OFF
OFF
WIDE
WIDE
AGC
AGC
MID
MID
S c o p e
S c o p e d u r i n g
d u r i n g T x
T x
O N
O N
M a x
M a x H o l d
H o l d
O N
O N
S C O P E
S C O P E S E T
S E T
DEF
DEF
é
è
VOX
VOX
OFF
OFF
COMP
COMP
OFF
OFF
WIDE
WIDE
AGC
AGC
MID
MID
S c o p e
S c o p e d u r i n g
d u r i n g T x
T x
O N
O N
M a x
M a x H o l d
H o l d
O N
O N
S C O P E
S C O P E S E T
S E T
BW
BW
2.4k
2.4k
SFT
SFT
0
FIL2
FIL2
U S B
U S B
qw
:
pp
TX
TX
VFO
VFO
USB
USB
USB
USB
USB
USB
FIL2
FIL2
qr.qot.pp
qr.wpq.pp
14.100.00
14.100.00
14.100.00
14.100.00
1
1
VFO
VFO
SUB
SUB
MARKER
MARKER
ATT
ATT
10dB
10dB
HOLD
HOLD
Grid
Grid
2.5k
2.5k
10dB
10dB
+12.5k
+12.5k
-12.5k
-12.5k
SPECTRUM SCOPE
SPECTRUM SCOPE
ANT
ANT
1
METER
METER
Po
Po
ATT
ATT
OFF
OFF
VOX
VOX
OFF
OFF
COMP
COMP
OFF
OFF
WIDE
WIDE
AGC
AGC
MID
MID
P.AMP
P.AMP
1
HOLD
HOLD
SET
SET
SPAN
SPAN
ATT
ATT
MARKER
MARKER
Appears when the
marker is out of range.
Sub readout
or TX marker
Appears when the
marker is out of range.
ANT
ANT
1
METER
METER
Po
Po
ATT
ATT
OFF
OFF
VOX
VOX
OFF
OFF
COMP
COMP
OFF
OFF
WIDE
WIDE
BW
BW
2.4k
2.4k
SFT
SFT
0
FIL2
FIL2
U S B
U S B
qw
:
pp
AGC
AGC
MID
MID
TX
TX
VFO
VFO
USB
USB
USB
USB
USB
USB
FIL2
FIL2
qr.qot.pp
qr.wpq.pp
14.100.00
14.100.00
14.100.00
14.100.00
1
1
VFO
VFO
Grid
Grid
2.5k
2.5k
10dB
10dB
+12.5k
+12.5k
-12.5k
-12.5k
SPECTRUM SCOPE
SPECTRUM SCOPE
HOLD
HOLD
SET
SET
P.AMP
P.AMP
1
SPAN
SPAN
ATT
ATT
MARKER
MARKER
IC-756PROII.qxd 02.1.8 15:51 Page 45