![background image](http://html1.mh-extra.com/html/icom/i706mktmg/i706mktmg_instruction-manual_3601260026.webp)
Filter variations
*Optional filter.
Optional filter installation and selection tables
SSB
23
4
RECEIVE AND TRANSMIT
D
Optional filter selection
Two optional filters can be installed in the IC-
706MKIIG.
Narrow filters help reject interference from adjacent
signals and obtain good selectivity.
Wide filters provide improved audio for SSB opera-
tion when no interfering signals are present.
Consult the table below to select a filter most suitable
for your operating needs.
Narrow filters for AM/FM modes are standard.
FILTER PRESETTING:
After you install a filter (see p. 60 for installation), you
must specify the installed filter in initial set mode
(item 19 “OPT. FIL 1” or item 20 “OPT. FIL 2”; see
p. 51).
FILTER ON/OFF:
➀
Select
M3
.
• Push [DISPLAY] 1 or 2 times if
G
or
S
appears.
• Push [MENU] one or more times to select
M3
.
➁
Push [
(F-1)
FIL
] momentarily to select the narrow
filter; for 2 sec. to select the wide filter.
•
ã
appears when the narrow filter is selected;
ç
appears when the wide filter is selected.
Note:
When selecting the narrow filter, the graphic
passband is narrowed (see diagram below).
Normal
operation
narrow is
selected
FL-101*
CW, RTTY
250 Hz/–6 dB
CW, RTTY
350 Hz/–6 dB
CW, RTTY
500 Hz/–6 dB
SSB, CW, RTTY
2.8 kHz/–6 dB
FL-223*
SSB, CW, RTTY
1.9 kHz/–6 dB
SSB, CW, RTTY
2.4 kHz/–6 dB
AM, FM
8 kHz/–6 dB
Mode
Band width
Name
FIL 1
FIL 2
No
optional
filter
FL-100
FL-101
FL-103
FL-223
FL-232
No
optional
filter
W: – – –
M: FL-272
N: – – –
W: – – –
M: FL-272
N: – – –
W: – – –
M: FL-272
N: – – –
W:FL-103
M: FL-272
N: – – –
W:– – –
M: FL-272
N: FL-223
W: – – –
M: FL-272
N: – – –
FL-100
W: – – –
M: FL-272
N: – – –
W: – – –
M: FL-272
N: – – –
W: – – –
M: FL-272
N: – – –
W:FL-103
M: FL-272
N: – – –
W:– – –
M: FL-272
N: FL-223
W: – – –
M: FL-272
N: – – –
FL-101
W: – – –
M: FL-272
N: – – –
W: – – –
M: FL-272
N: – – –
W: – – –
M: FL-272
N: – – –
W:FL-103
M: FL-272
N: – – –
W:– – –
M: FL-272
N: FL-223
W: – – –
M: FL-272
N: – – –
FL-103
W: FL-103
M: FL-272
N: – – –
W: FL-103
M: FL-272
N: – – –
W: FL-103
M: FL-272
N: – – –
W: FL-103
M: FL-272
N: – – –
W: FL-103
M: FL-272
N: FL-223
W: FL-103
M: FL-272
N: – – –
FL-223
W: – – –
M: FL-272
N: FL-223
W: – – –
M: FL-272
N: FL-223
W: – – –
M: FL-272
N: FL-223
W:FL-103
M: FL-272
N: FL-223
W:– – –
M: FL-272
N: FL-223
W: – – –
M: FL-272
N: FL-223
FL-232
W: – – –
M: FL-272
N: – – –
W: – – –
M: FL-272
N: – – –
W: – – –
M: FL-272
N: – – –
W: FL-103
M: FL-272
N: – – –
W: – – –
M: FL-272
N: FL-223
W: – – –
M: FL-272
N: – – –
FIL 1
FIL 2
No
optional
filter
FL-100
FL-101
FL-103
FL-223
FL-232
No
optional
filter
W: – – –
M: FL-272
N: – – –
W: – – –
M: FL-272
N: FL-100
W: – – –
M: FL-272
N: FL-101
W:FL-103
M: FL-272
N: – – –
W:– – –
M: FL-272
N: FL-223
W: – – –
M: FL-272
N: FL-232
FL-100
W: – – –
M: FL-272
N: FL-100
W: – – –
M: FL-272
N: FL-100
W: FL-272
M: FL-100
N: FL-101
W:FL-103
M: FL-272
N: FL-100
W:FL-272
M: FL-223
N: FL-100
W:FL-272
M: FL-100
N: FL-232
FL-101
W: – – –
M: FL-272
N: FL-101
W: FL-272
M: FL-100
N: FL-101
W: – – –
M: FL-272
N: FL-101
W:FL-103
M: FL-272
N: FL-101
W: FL-272
M: FL-223
N: FL-101
W:FL-272
M: FL-232
N: FL-101
FL-103
W: FL-103
M: FL-272
N: – – –
W: FL-103
M: FL-272
N: FL-100
W: FL-103
M: FL-272
N: FL-101
W: FL-103
M: FL-272
N: – – –
W: FL-103
M: FL-272
N: FL-223
W: FL-103
M: FL-272
N: FL-223
FL-223
W: – – –
M: FL-272
N: FL-223
W:FL-272
M: FL-223
N: FL-100
W:FL-272
M: FL-223
N: FL-101
W:FL-103
M: FL-272
N: FL-223
W:– – –
M: FL-272
N: FL-223
W:FL-272
M: FL-223
N: FL-232
FL-232
W: – – –
M: FL-272
N: FL-232
W: FL-272
M: FL-100
N: FL-232
W: FL-272
M: FL-232
N: FL-101
W: FL-103
M: FL-272
N: FL-232
W: FL-272
M: FL-223
N: FL-232
W: – – –
M: FL-272
N: FL-232
FL-100*
FL-232*
FL-94
FL-103*
FL-272
FM
Normal
FL-23 + SFPC455E
Narrow
FL-94
AM
Normal
FL-94
Narrow
FL-272
CW, RTTY
Table key:
W—wide position
M—medium (normal) position
N—Narrow position