Icom IC-756 - Manual (Page 40)

37
4
RECEIVE AND TRANSMIT
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 If the start up screen is not selected (if [F-5]’s func-
tion is [EXIT]), push [F-5] one or more times to exit.
w Push [ (F-1) SCOPE] to select the scope screen.
e Push [ (F-1) SPAN] one or more times to select the
scope span.
r Push [ (F-2) MARKER] to select the marker or turn
the marker OFF.
- SUB MARK displays the marker at the sub readout fre-
quency.
- TX MARK displays the marker at the transmit fre-
quency.
t Push [ (F-3) MAX-H] to hold peak levels or not.
y Push [ (F-4) HOLD] to freeze the current spectrum
waveform.
u Push [ (F-5) EXIT] to exit the scope screen.
■ Spectrum scope screen
G r i d
5 k
1 0 d B - 2 5 k S P E C T R U M S C O P E + 2 5 k
1ß
14.195.00 VFO VFO
USB USB
USB USB
14.100.00 14.100.00
1ß 14.100.00 14.100.00
14.205.00 14.205.00
USB USB
USB USB
T X
ANT ANT
1
METER METER
Po Po
P.AMP P.AMP
OFF OFF
ATT ATT
OFF
OFF
2.4k 2.4k 9 2.8k 2.8k 455 455 12:34 12:34
VFO VFO
MARKER MARKER HOLD HOLD MAX-H MAX-H EXIT EXIT
AGC AGC
MID
MID
VOX VOX
OFF
OFF
COMP COMP
OFF
OFF
SPAN SPAN
1ß
14.195.00 14.195.00 VFO VFO
USB USB
USB USB
14.100.00 14.100.00
1ß 14.100.00 14.100.00
14.207.00
USB USB
USB USB
ANT ANT
1
METER METER
Po Po
P.AMP P.AMP
OFF OFF
ATT ATT
OFF
OFF
2.4k 2.4k 9 2.8k 2.8k 455 455 12:34 12:34
VFO VFO
MARKER MARKER HOLD HOLD MAX-H MAX-H EXIT EXIT
AGC AGC
MID
MID
VOX VOX
OFF
OFF
COMP COMP
OFF
OFF
SPAN SPAN
G r i d
5 k
1 0 d B
Е З
- 2 5 k S P E C T R U M S C O P E + 2 5 k
SPLIT SPLIT
T X
S U B
M A R K
Appears when the
marker is out of range. Sub readout
or TX marker Appears when the
marker is out of range.
The transceiver covers 0.1–60 MHz over 10 bands.
Each band key has a band memory which can mem-
orize a selected antenna (ANT1, ANT2, ANT1/
RX antenna and ANT2/RX antenna). When you
change the operating frequency beyond a band, the
previously used antenna is automatically selected for
the new band. This function is convenient when you
use 2 or 3 antennas.
To use the band memory, enter set mode and confirm
that “AUTO” is selected as the [ANT] switch item. (p.
58)
• When OFF is selected, the [ANT] switch does not function and
[ANT1] is always selected.
• When MANUAL is selected, the [ANT] switch functions, however,
band memory does not function. In this case, you must select an
antenna manually.
• When AUTO is selected (default setting), the antenna tuner
ON/OFF condition is also memorized in the band memory.
• When AUTO or MANUAL is selected, the antenna tuner ON/OFF
condition is consistent with the [ANT] switch.
• Antenna switch selection example
Under the following condition, “AUTO” should be se-
lected as the [ANT] switch set mode item.
- When you use 2 antennas.
Under the following conditions, “MANUAL” should be
selected as the [ANT] switch set mode item.
- When using 1 antenna.
- When using the EX-627
HF AUTOMATIC ANTENNA SE-
LECTOR for more than 3 antennas (except for receive
antenna).
- When using an external antenna tuner.
■ Band memory
(for automatic antenna selection)
VOX VOX
OFF
OFF
COMP COMP
OFF
OFF
AGC AGC
MID
MID
EXIT EXIT ≥ ≥ DEF DEF ≤ ≤
Q u i c k s p l i t O N
F M s p l i t o f f s e t ( H F ) - 0 . 1 0 0 M H z
F M s p l i t o f f s e t ( 5 0 M ) - 1 . 0 0 0 M H z
F M s u b a u d i b l e t o n e 8 8 . 5 H z
S p l i t l o c k O F F
T u n e r ( a u t o s t a r t ) O F F
T u n e r ( P T T s t a r t ) O F F
[ A N T ] s w i t c h A U T O
R T T Y m a r k f r e q . 2 1 2 5
[OTHERS [OTHERS SET] SET]