ICOM IC-706MKIIG User Manual
38
4
RECEIVE AND TRANSMIT
The IC-706MKIIG can measure SWR in 2 ways:
(A) Spot measurement; or (B) Plot measurement.
(A) Spot measurement; or (B) Plot measurement.
((A
A)) S
Sp
po
ott m
me
ea
as
su
urre
em
me
en
ntt
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.
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
B)) P
Pllo
ott m
me
ea
as
su
urre
em
me
en
ntt
Plot measurement allows you to measure the SWR
over an entire band.
over an entire band.
q Confirm that the output power is over 30 W.
w Push [DISPLAY] twice to select G1 menu.
e Push [MENU] to select G2.
r Set the center frequency for the SWR to be mea-
w Push [DISPLAY] twice to select G1 menu.
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.
• RTTY mode is selected automatically.
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.
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.
■ SSW
WR
R
The IC-706MKIIG has a built-in circuit for measuring
antenna SWR—no external equipment or special
adjustments are necessary.
antenna SWR—no external equipment or special
adjustments are necessary.
☞ N
NO
OT
TE
E:: T
Th
he
e S
SW
WR
R c
ca
an
n o
on
nlly
y b
be
e m
me
ea
as
su
urre
ed
d o
on
n
A
AN
NT
T1
1,, H
HF
F//5
50
0 M
MH
Hz
z b
ba
an
nd
ds
s..
D M
Me
ea
as
su
urriin
ng
g S
SW
WR
R
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
Frequency indication mark
Measure start indicator
S
Sp
pa
an
n
Push [F-1] for 1 sec. to change the
selected span.
selected span.
S
Stte
ep
p b
ba
arr
Push [F-2] for 1 sec. to change the
step bar (3, 5, 7 or 9 steps are available.
step bar (3, 5, 7 or 9 steps are available.
M
Ma
arrk
ke
err
Indicates the currently active step bar.
S
Stta
arrtt
Flashes while the SWR is being mea-
sured.
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
BLANK
G2 50k
STR
4.0
3.5
3.0
2.5
2.0
3.5
3.0
2.5
2.0
1.5
1.0
1.0
RTTY
IC-706MKIIG.qxd 02.3.27 13:53 Page 38