Icom Ic-703 Hf/50mhz All Mode Tranciever Instruction Manual

							7
56
MEMORY OPERATION
Memory channels
The transceiver has 105 memory channels (includes 6
scan edge channels). Memory mode is useful for
quickly changing to often-used frequencies.
All 105 memory channels are tuneable which means
the programmed frequency can be tuned temporarily
with the main dial, etc., in memory mode.
qSelect M2functions.
• Push [DISPLAY] once or twice to select M.
• Push [MENU] one or more times to select M2.
wPush [(F-3)V/M] to select memory mode.
eRotate [M-CH] to select the desired memory chan-
nel.
• All memory channels including blank channels can be
selected.
• [UP]/[DN] on the microphone changes the frequency.
rTo return to VFO mode, push [(F-3)V/M] again.
CW
CH
VFO A
[EXAMPLE]: Selecting memory channel 17.
V/M
F-3USB
CH
MEMOSPLIT
CH
MEMO
USB
M-CH SHIFT
[DISPLAY] [MENU] [M-CH][F-3]
Memory channel selection
NOTE: During split frequency operation, pro-
grammed memory contents can be called up to the
SUB readout (dot matrix portion of the display).
MEMORY
CHANNELMEMORY
CHANNEL
NUMBERCAPABILITYTRANSFER
TO VFOOVER-
WRITINGCLEAR
Regular
(split memory)1–99
Independent transmit and receive
frequencies and one mode in each
memory channel.
In addition, tone frequencies can
also be stored for repeater use.
Ye sYe sYe s
Scan edges1A–3B
(3 pairs)One frequency and one mode in
each memory channel as scan
edges for programmed scan.
Ye sYe sNo
6
7 
						

							57
7MEMORY OPERATION
•Programming in VFO mode
qSelect M2functions.
• Push [DISPLAY] once or twice to select M.
• Push [MENU] one or more times to select M2.
wSet the desired frequency and operating mode in
VFO mode.
• If you want to program the split frequency function, pro-
gram both receive and transmit frequencies into VFO A
and B, then turn ON the split function.
• If you want to program a repeater function, set a tone
frequency (pgs. 44, 45) in addition to the receive/trans-
mit frequencies.
eRotate [M-CH] to select the desired memory chan-
nel.
•Select memory mode to confirm the contents, if desired.
•“}” appears if the selected memory channel is a
blank channel (and does not have contents).
rPush [(F-1)MW] for 1 sec. to program the displayed
frequency and operating mode into the memory
channel.
To check the programmed contents, push [
(F-3)V/M]
to select memory mode.
CW
CH
VFO A
[EXAMPLE]: Programming 7.088 MHz/LSB into ch 12.
TS
MODE
MW
F-1
LSB
BLANK
SPLIT
CH
VFO A
LSB
CH
VFO A
LSB
CH
VFO A
Push for
1 sec.
M-CH SHIFT
[DISPLAY] [MENU]
[M-CH][F-3][F-1]
Memory programming
•Programming in memory mode
qSelect M2functions.
• Push [DISPLAY] once or twice to select M.
• Push [MENU] one or more times to select M2.
wSet the desired frequency and operating mode.
ePush [
(F-3)V/M] to select memory mode, then se-
lect the desired memory channel with [M-CH].
• Push [Y]/[Z] when you want to program blank chan-
nels.
rPush [(F-1)MW] for 1 sec. to program the displayed
frequency and operating mode into the memory
channel.
CH
[EXAMPLE]: Programming 21.280 MHz/USB into
ch 18.
TS
MODE
MW
F-1
SPLIT
Push for
1 sec.
CH
MEMO
USBCH
MEMO
USBCH
MEMO
CW
CH
MEMO
USB
M-CH SHIFT
[DISPLAY] [MENU]
[M-CH][F-3][F-1]
[Y]
[Z] 
						

							58
7MEMORY OPERATION
Any unnecessary memory channels can be cleared.
The cleared memory channels become blank chan-
nels.
qSelect M2functions.
• Push [DISPLAY] once or twice to select M.
• Push [MENU] one or more times to select M2.
wPush [(F-3)V/M] to select memory mode.
eRotate [M-CH] to select a memory channel to be
cleared.
rPush [
(F-2)MCL] for 1 sec. to clear the contents.
• The programmed frequency and operating mode dis-
appear and “}” appears.
tTo return to VFO mode, push [(F-3)V/M] again.MCL
F-2
SPLIT
Push for
1 sec.CH
MEMO
USB
CH
MEMO
BLANK
[DISPLAY] [MENU] [M-CH][F-3][F-2]
Memory clearing
Frequency transferring
The frequency and operating mode can be trans-
ferred from memory mode to VFO mode.
qSelect M2functions.
• Push [DISPLAY] once or twice to select M.
• Push [MENU] one or more times to select M2.
wSelect VFO mode with [(F-3)V/M].
eSelect a memory channel with [M-CH].
• Select memory mode to confirm the memory channel’s
contents, if desired; then return to VFO mode.
•“}” appears if the selected memory channel is a
blank channel (and does not have contents). In this
case transferring is not possible.
rPush [(F-3)V/M] for 1 sec. to transfer the frequency
and operating mode.
• Transferred frequency and operating mode appear in
the display.
V/M
F-3
SPLIT
Push for
1 sec.
[EXAMPLE]: Transferring contents of memory 16.
Operating frequency: 21.320 MHz/USB (VFO)
Contents of memory 16:  14.020 MHz/CW
CH
VFO A USB
CH
VFO A USB
CH
VFO A CW
M-CH SHIFT
[DISPLAY] [MENU] [M-CH][F-3]
7 
						

							59
7MEMORY OPERATION
Memory names
All memory channels (including scan edges) can be
tagged with alphanumeric names of up to 9 charac-
ters each.
All common keyboard characters (ASCII characters
33 to 126) can be used, including numerals and punc-
tuation marks.
•Calling up memory names
qSelect the G4display.
•Push [DISPLAY] once or twice to select G.
•Push [MENU] one or more times to select G4.
wSelect a memory channel with [M-CH].
•Editing (programming) memory names
qCall up the desired memory (channel) name as
above.
wPush [
(F-3)É] to enter memory name edit mode.
•“[DEL]” appears briefly, then a cursor blinking under
the first character position.
eRotate the main dial to select the desired charac-
ter, then advance the cursor position.
• Pushing [(F-3)Ç] moves the cursor to the right; [(F-1)Å]
moves the cursor to the left.
• Pushing [
(F-2)] deletes the character.
rRepeat this procedure until all desired characters
have been selected.
tPush [
(MENU)Ä] to exit memory name edit mode.
• The G4display re-appears and the programmed mem-
ory name is displayed.
G4 memory name
G4
G4 Repeater  É ÄÅÖ        [DEL]É
F-3
Ç
F-3
Ç
F-3
Ä
MENU
ÄÅRÇ
Ç
ÄÅRe
Ç
ÄÅRepeaterÖ
Ç
É
[DISPLAY] [M-CH][F-3]
[F-1]Main dial[MANU] [F-2] 
						

							•Writing frequencies and operating modes
into memo pads
qSelect the S1display.
• Push [DISPLAY] once or twice to select S.
• Push [MENU] one or more times to select S1.
wPush [(F-2)MPW] to program the frequency into a
memo pad.
When you write a 6th frequency and operating mode,
the oldest written frequency and operating mode are
automatically erased to make room for the new set-
tings.
NOTE: Each memo pad must have its own unique
combination of frequency and operating mode;
memo pads having identical settings cannot be
written.
•Calling up a frequency from a memo pad
You can simply call up the desired frequency and op-
erating mode of a memo pad by pushing [
(F-3)MPR]
in the S1display.
• Make sure S1is selected in advance.
• Both VFO and memory modes can be use.
• The frequency and operating mode are called up, starting
from the most recently written.
When you call up a frequency and an operating mode
from memo pads with [
(F-3)MPR], the previously dis-
played frequency and operating mode are automati-
cally stored in a temporary pad. The frequency and
operating mode in the temporary pad can be recalled
by pushing [
(F-3)MPR] one or more times.
NOTE: If you change the frequency or operating
mode called up from a memo pad, the frequency
and operating mode in the temporary pad are
erased.
Displayed frequency and mode
Push
Newest
MP5
MP4
MP3
MP2
MP1
The oldest written frequency
and mode are erased.
Oldest
MPW
F-2
USB
USB
USB
USB
USB
USB
[DISPLAY] [F-3][MANU] [F-2]
60
7MEMORY OPERATION
VFO or
MEMORY
modeMEMO PADS
MPR
F-3
MPR
F-3
USB
USB
USB
USB
USB
USB
MP5
MP4
MP3
MP2
MP1
Memo pads
The transceiver has a memo pad function to store fre-
quency and operating mode for easy write and recall.
The memo pads are separate from memory channels.
The default number of memo pads is 5, however, this
can be increased to 10 in initial set mode if desired
(p. 80).Memo pads are convenient when you want to memo-
rize a frequency and operating mode temporarily, such
as when you find a DX station in a pile-up or when a
station is busy for a long time and you want to tem-
porarily search for other stations.
Use the transceiver’s memo pads instead of relying on
hastily scribbled notes that are easily misplaced.
7 
						

							8
61
SCAN OPERATION
Scan types
Preparation
•Channels
For programmed scan:Program scan edge frequen-
cies into scan edge memory channels 1A and 1B.
(p. 57)
For memory scan:Program 2 or more memory chan-
nels except scan edge memory channels.
For memory select scan:Designate 2 or more mem-
ory channels as select memory channels—select a
memory channel, then push [
(F-2)SEL] in the S2dis-
play (memory mode) to designate the channel as a se-
lect memory channel.
For priority watch:Program 1 memory channel to be
watched.
•Scan resume ON/OFF
You can select the scan to resume or cancel when de-
tecting a signal, in initial set mode, item “27  SCAN
RESUME”. Scan resume ON/OFF must be set before
operating a scan. See p. 80 for ON/OFF setting and
scan resume condition details.•
Scan speed
Scan speed can be selected from 2 levels, high or low,
in initial set mode. See p. 80 for details.
•Squelch condition
PROGRAMMED SCAN
Repeatedly scans between two scan edge frequencies 
(scan edge memory channels 1A and 1B).
This scan operates in VFO mode.
SELECTED MEMORY SCAN
Repeatedly scans all selected memory channels.
PRIORITY WATCH
Checks for signals on a memory while operating on a 
VFO frequency.
This scan operates in memory mode. This scan operates in memory mode.This scan operates in VFO mode.
Scan
Scan edge 1A or 1B Scan edge 1B or 1A
Jump
Mch 1 Mch 5Memory
channel VFO
frequency
Mch 2 Mch 3 Mch 4
Mch 6 Mch 7 Mch 99
MEMORY SCAN
Repeatedly scans all programmed memory channels.
Mch 1 Mch 5Mch 2 Mch 3 Mch 4
Mch 6 Mch 7 Mch 99
BLANK
S (select)
S (select) S (select) S (select)S (select) S (select)
S (select) S (select) S (select)S (select)BLANK
SCAN
STARTS
WITHPROGRAMMED
SCANMEMORY SCANS
PRIORITY WATCH
SQUELCH
OPEN
The scan continues
until it is stopped man-
ually, and does not
pause even if it de-
tects signals.
This is not applicable
when the scan re-
sume is OFF and a
programmable step
(more than 1 kHz) is
selected.Scan pauses on each
channel when the
scan resume is ON;
not applicable when
OFF.
SQUELCHCLOSED
Scan stops when detecting a signal.
If you set scan resume ON in initial set mode,
the scan pauses for 10 sec. when detecting a
signal, then resumes. When a signal disap-
pears while scan is paused, scan resumes 2
sec. later. 
						

							62
8SCAN OPERATION
qSelect VFO mode.
wSelect the desired operating mode.
• The operating mode can also be changed while scan-
ning.
eSet [SQL] open or closed.
• See page a left for squelch condition.
rSelect S2.
• Push [DISPLAY] once or twice to select S.
• Push [MENU] one or more times to select S2.
tPush [(F-1)SCN] to start the scan.
• Decimal point blinks while scanning.
yWhen the scan detects a signal, the scan turns
OFF, pauses or ignores it depending on the re-
sume setting and the squelch condition.
• During scan [TS] can be used only when resume is ON.
uTo cancel the scan push [(F-1)SCN].
NOTE: If the same frequencies are programmed
into the scan edge memory channels 1A and 1B,
programmed scan does not start.
CH
VFO A
PO
S1
5 5 3792040
10 60dB
USB
S2 SCN PRI V/M
Select
VFO mode
F-1then push [(F-1)SCN]
[DISPLAY] [F-1][MANU][SQL]
Programmed scan operation
qSelect memory mode.
wClose the squelch with [SQL].
eSelect S2.
• Push [DISPLAY] once or twice to select S.
• Push [MENU] one or more times to select S2.
rPush [(F-1)SCN] to start the scan.
• Decimal point blinks while scanning.
tWhen the scan detects a signal, the scan stops or
pauses depending on the resume setting.
yTo cancel the scan push [
(F-1)SCN].
NOTE: Two or more memory channels must be
programmed for memory scan to start.
S2 SCN
SEL V/M
Select
memory mode
F-1
then push [(F-1)SCN]
CH
MEMOPO
S1
5 5 3792040
10 60dB
USB
[DISPLAY] [F-1][MANU][SQL]
Memory scan operation
8 
						

							63
8SCAN OPERATION
qSelect VFO mode, then set a frequency.
wClose the squelch with [SQL].
eSet the desired memory channel as the watching
channel.
rSelect S2.
• Push [DISPLAY] once or twice to select S.
• Push [MENU] one or more times to select S2.
tPush [(F-2)PRI] to start the priority watch.
• Decimal point blinks while scanning.
yWhen the scan detects a signal, the scan pauses
for 10 sec. or until the signal disappears, depend-
ing on the resume setting.
uTo cancel the scan push [
(F-2)PRI].
NOTE: The paused condition when detecting a sig-
nal differs depending on the scan resume condi-
tion. (p 80)
resume on: pauses for 10 sec.
resume off: pauses until the signal disappears.
S2 SCN
PRI V/M
Select
VFO mode
Select watching
channel
F-2
Push [(F-2)PRI].
CHPO
S1
5 5 3792040
10 60dB
USB
VFO A
[DISPLAY][MANU][F-2][SQL]
qSelect memory mode.
wClose the squelch with [SQL].
eSelect S2.
• Push [DISPLAY] once or twice to select S.
• Push [MENU] one or more times to select S2.
rPush [(F-1)SCN] to start the memory scan.
• Decimal point blinks while scanning.
tPush [(F-2)SEL] to change the memory scan to se-
lect memory scan.
• Push [(F-2)SEL] for 2 sec. to clear all select memory
channels.
yWhen the scan detects a signal, the scan stops or
pauses depending on the resume setting.
uTo cancel the scan push [
(F-1)SCN].
NOTE: Two or more memory channels must be
designated as select memory channels for select
memory scan to start (see p. 61).S2 SCN
SEL V/M
Select
memory mode
Designate
“S.”
F-1
F-2
Push [(F-1)SCN], then [(F-2)SEL].
CHS
MEMOPO
S1
5 5 3792040
10 60dB
USB
[DISPLAY] [F-1][MANU][F-2][SQL]
Select memory scan operation
Priority watch 
						

							9
64
ANTENNA TUNER OPERATION
The internal automatic antenna tuner matches the
transceiver to the connected antenna automatically.
Once the tuner matches an antenna, the latching relays
combination are memorized as a preset point for each
frequency range (100 kHz steps). Therefore, when you
change the frequency range, the latching relays are au-
tomatically preset to the memorized combination.CAUTION:NEVERtransmit with the tuner ON
when no antenna is connected. This will damage
the transceiver. Be careful of the antenna selection.
Push [TUNER] to turn the internal antenna tuner
ON. The antenna is tuned automatically when the
antenna SWR is higher than 1.5:1.
• When the tuner is ON, the ‘TUNER’ indicator lights red.
•MANUAL TUNING
Push [TUNER] for 1 sec., to start manual tuning.
• A side tone is emitted and ‘TUNER’ indicator blinks
while tuning.
• If the tuner cannot reduce the SWR to less than 1.5:1
after 20 sec. of tuning, the ‘TUNER’ indicator goes out.
•PTT TUNER START
The tuner is always tuned when the PTT is pushed
after the frequency is changed (more than 1% from
last-tuned frequency). This function removes the
“push and hold [TUNER]” operation and activates for
the first transmission on a new frequency.
This function can be turned ON in initial set mode 
(p. 81).
•TUNER RESET
qMake sure the transceiver power is OFF.
wWhile pushing [Y] and [Z], push [POWER] to turn
power ON.
•“CLEAR ? OK” appears as shown below.
eRotate main dial to select tuner reset.
rThen Push [F-3] for 1 sec to start tuner resetting.
• The memorized tuner settings are reset.
[TUNER]
TUNER
Lights to indicate internal tuner is activated.
CLEAR  ?    OK
F 3
[POWER]
[Y]
[Z]
D D
If the tuner cannot tune the antenna
Check the following and try again:
• the antenna connection and feedline.
• the unaltered antenna SWR. 
(Less than 3:1 for HF bands;
Less than 2.5:1 for 50 MHz band)
• the power source voltage/capacity.
If the tuner cannot reduce the SWR to less than
1.5:1 after checking the above, perform the follow-
ing:
• repeat manual tuning several times.
• tune with a 50 Ωdummy load and re-tune the antenna.
• turn power OFF and ON.
• adjust the antenna cable length.
(This is effective for higher frequencies in some cases.)
• Some antennas, especially for low bands, have a nar-
row bandwidth. These antennas may not be tuned at
the edge of their bandwidth, therefore, tune such an
antenna as follows:
NOTES:
• The internal antenna tuner can tune the HF to 50 MHz
bands.
•NEVERtransmit without an antenna properly connected
to antenna port in use.
• If the SWR is higher than about 1.5:1 when tuning
above 100 kHz on an antenna’s preset point, push
[TUNER] for 1 sec. to start manual tuning.
• When strong impact is applied, the internal tuner may
not work properly caused by the latching relay is off po-
sition.In this case, push [POWER] momentarilyto reset
the all latching relays while transceiver power is ON.
DInternal antenna tuner
DTuner operation
Antenna tuner operation
8
9 
						

							65
9ANTENNA TUNER OPERATION
The AT-180 automatic antenna tuner matches the IC-
703 to the connected antenna automatically. Once the
tuner matches an antenna, the variable capacitor an-
gles are memorized as a preset point for each fre-
quency range (100 kHz steps). Therefore, when you
change the frequency range, the variable capacitors
are automatically preset to the memorized point.
CAUTION:NEVERtransmit with the tuner ON
when no antenna is connected. This will damage
the transceiver. Be careful of the antenna selection.
• The AT-180 can match both HF and 50 MHz bands.
However, operation is different for the HF and 50
MHz bands.
TUNER OPERATION
•For the HF band:
Push [TUNER] to turn the tuner ON. The antenna is
tuned automatically during transmission when the an-
tenna SWR is higher than 1.5:1.
• When the tuner is OFF, the [TUNER] light goes out.
•For the 50 MHz band:
Push [TUNER] for 1 sec. to tune the antenna. If the
[TUNER] light flashes slowly while transmitting, push
and hold [TUNER] for 1 sec. again to re-tune the an-
tenna.MANUAL TUNING
During SSB operation on HF bands at low voice lev-
els, the AT-180 may not be tuned correctly. In such
cases, manual tuning is helpful.
Push [TUNER] for 1 sec. to start manual tuning.
• CW mode is selected, a side tone is emitted, and the
[TUNER] light flashes; then, the previous mode is selected.
If the tuner cannot reduce the SWR to less than 1.5:1
after 20 sec. of tuning, the [TUNER] light goes out. In
this case, check the following:
• the antenna connection and feedline
• the antenna SWR (p. 55; meter function)
Through inhibit (HF bands only)
The AT-180 has a through inhibit condition. When se-
lecting this condition, the tuner can be used at poor
SWR’s. In this case, automatic tuning in the HF bands
activates only when exceeding SWR 3:1. Therefore,
manual tuning is necessary each time you change the
frequency. Although termed “through inhibit,” the tuner
will be “through” if the SWR is higher than 3:1 after
tuning.
•Tuner sensitive condition (HF bands only)
If you require critical tuning at any time during trans-
mission, select the tuner sensitive condition. See
p. 81 for selection.
•Automatic tuner start (HF bands only)
If you want to turn OFF the tuner under conditions of
VSWR 1.5:1 or less, use “automatic tuner on” and
turn the tuner OFF. See p. 81 for turning the function
ON and OFF.
CONVENIENT
[TUNER]
Push and hold for 1 sec. to start manual tuning.
[TUNER]TUNER
Flashes to indicate 
re-tuning is necessary.
DOptional AT-180 AUTOMATIC ANTENNA TUNERoperation DOptional external tuner operation
[TUNER]TUNER
Lights to indicate AT-180 
is turned ON.
The IC-703 automatically detects and selects an optional
external tuner (AT-180/AH-4) when connected. In this
case, the internal tuner switches to the through function.
NOTE: When the connected power supply voltage
is lower than 11.0 V, the transceiver automatically
switches to the battery operating mode (power sav-
ing mode). In this case, the transceiver can not drive
an external antenna tuner.NOTE: When connecting the optional antenna tuner
AT-180, the IC-703’s output power must be set max-
imum (10 W) both in quick set mode and initial set
mode. Otherwise, the AT-180 may not be tuned cor-
rectly. 
(AT-180’s minimum operating input power is 8 W.)