38
4
RECEIVE AND TRANSMIT
The IC-706MKIIG can measure SWR in 2 ways:
(A) Spot measurement; or (B) Plot measurement.
(A) Spot measurement
➀
Confirm that the output power is over 30 W.
➁
Push [MENU] one or more times to select
M3
.
➂
Push [
(F3)
MET
] to select the SWR meter.
➃
Push [MODE] one or more times to select CW or
RTTY operation.
• Key down or push [PTT] to transmit; then read the actu-
al SWR from the meter:
➠
≤
1.5 well matched antenna
➠
>
1.5 check antenna or cable connection, etc.
(B) Plot measurement
Plot measurement allows you to measure the SWR
over an entire band.
q
Confirm that the output power is over 30 W.
w
Push [DISPLAY] twice to select
G1
.
e
Push [MENU] to select
G2
.
r
Set the center frequency for the SWR to be mea-
sured.
t
Push and hold [
(F1)
10k
] one or more times to
select the desired frequency pitch.
y
Push and hold [
(F2)
] one or more times to select
the desired step.
u
After selecting the desired pitch and step, push
[
(F3)
STR
] to measure the SWR.
i
Push and hold [PTT] to display the SWR in a bar
graph readout.
o
When [PTT] is released, the frequency marker and
frequency indication move to the next frequency to
be measured.
!0
Repeat steps
i
.and
o
to measure SWR over the
entire frequency range.
!1
When the measured SWR is less than 1.5, the
antenna is well matched.
■
SWR
The IC-706MKIIG has a built-in circuit for measuring
antenna SWR while in SSB mode—no external equip-
ment or special adjustments are necessary.
☞
NOTE:
The SWR of ANT1
only
can be read since
ANT2 has no measuring circuit.
D
Measuring SWR
CH
VFO A
SWR
S1
1 1.5 2
3
5
3
7
9
20
40 60dB
CW
BLANK
SWR
1 1.5 2
3 5
10
The best match is in this range.
∞
∞
M3 FIL NB
MET
G2 10k
STR
Frequency span
Step bar indication
Frequency indication mark
Measure start indicator
Span
Push [F-1] for 1 sec. to change the
selected span.
Step bar
Push [F-2] for 1 sec. to change the step
bar (3, 5, 7 or 9 steps are available.
Marker
Indicates the currently active step bar.
Start
Flashes while the SWR is being mea-
sured.
Step
o
The antenna is well matched in this range
CH
VFO A
P
O
S1
5
5
3
7
9
20
40
10
60dB
USB
BLANK
G2 50k
STR
4.0
3.5
3.0
2.5
2.0
1.5
1.0
CH
VFO A
P
O
S1
5
5
3
7
9
20
40
10
60dB
BLANK
G2 50k
STR
STR
___
RTTY
Step
y
