Icom I706MKTMG Instruction Manual page 26

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 variations
Name Mode
FL-101* CW, RTTY
FL-232* CW, RTTY
FL-100* CW, RTTY
FL-223* SSB, CW, RTTY
FL-272 SSB, CW, RTTY
FL-103* SSB, CW, RTTY
FL-94 AM, FM
*Optional filter.
Optional filter installation and selection tables
SSB
No
FIL 1
FL-100 FL-101 FL-103 FL-223 FL-232
optional
FIL 2
filter
W: – – – W: – – –
No
optional M: FL-272 M: FL-272
N: – – – N: – – –
filter
W: – – – W: – – –
FL-100 M: FL-272 M: FL-272
N: – – – N: – – –
W: – – – W: – – –
FL-101
M: FL-272 M: FL-272
N: – – – N: – – –
W: FL-103 W: FL-103
FL-103
M: FL-272 M: FL-272
N: – – – N: – – –
W: – – – W: – – –
FL-223 M: FL-272 M: FL-272
N: FL-223 N: FL-223
W: – – – W: – – –
FL-232
M: FL-272 M: FL-272
N: – – – N: – – –
Table key:
W—wide position
M—medium (normal) position
N—Narrow position
23
Band width
250 Hz/–6 dB
350 Hz/–6 dB
500 Hz/–6 dB
1.9 kHz/–6 dB
2.4 kHz/–6 dB
2.8 kHz/–6 dB
8 kHz/–6 dB
W: – – – W:FL-103 W:– – – W: – – –
M: FL-272 M: FL-272 M: FL-272 M: FL-272
N: – – – N: – – – N: FL-223 N: – – –
W: – – – W:FL-103 W:– – – W: – – –
M: FL-272 M: FL-272 M: FL-272 M: FL-272
N: – – – N: – – – N: FL-223 N: – – –
W: – – – W:FL-103 W:– – – W: – – –
M: FL-272 M: FL-272 M: FL-272 M: FL-272
N: – – – N: – – – N: FL-223 N: – – –
W: FL-103 W: FL-103 W: FL-103 W: FL-103
M: FL-272 M: FL-272 M: FL-272 M: FL-272
N: – – – N: – – – N: FL-223 N: – – –
W: – – – W:FL-103 W:– – – W: – – –
M: FL-272 M: FL-272 M: FL-272 M: FL-272
N: FL-223 N: FL-223 N: FL-223 N: FL-223
W: – – – W: FL-103 W: – – – W: – – –
M: FL-272 M: FL-272 M: FL-272 M: FL-272
N: – – – N: – – – N: FL-223 N: – – –
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
FIL] momentarily to select the narrow
Push [
(F-1)
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
CW, RTTY
No
FIL 1
FL-100 FL-101 FL-103 FL-223 FL-232
optional
FIL 2
filter
W: – – – W: – – – W: – – –
No
optional M: FL-272 M: FL-272 M: FL-272
N: – – – N: FL-100 N: FL-101
filter
W: – – – W: – – – W: FL-272
FL-100 M: FL-272 M: FL-272 M: FL-100
N: FL-100 N: FL-100 N: FL-101
W: – – – W: FL-272 W: – – –
FL-101
M: FL-272 M: FL-100 M: FL-272
N: FL-101 N: FL-101 N: FL-101
W: FL-103 W: FL-103 W: FL-103
FL-103
M: FL-272 M: FL-272 M: FL-272
N: – – – N: FL-100 N: FL-101
W: – – – W:FL-272 W:FL-272
FL-223 M: FL-272 M: FL-223 M: FL-223
N: FL-223 N: FL-100 N: FL-101
W: – – – W: FL-272 W: FL-272
FL-232
M: FL-272 M: FL-100 M: FL-232
N: FL-232 N: FL-232 N: FL-101
Normal
AM
Narrow
Normal
FM
Narrow
narrow is
selected
W:FL-103 W:– – – W: – – –
M: FL-272 M: FL-272 M: FL-272
N: – – – N: FL-223 N: FL-232
W:FL-103 W:FL-272 W:FL-272
M: FL-272 M: FL-223 M: FL-100
N: FL-100 N: FL-100 N: FL-232
W:FL-103 W: FL-272 W:FL-272
M: FL-272 M: FL-223 M: FL-232
N: FL-101 N: FL-101 N: FL-101
W: FL-103 W: FL-103 W: FL-103
M: FL-272 M: FL-272 M: FL-272
N: – – – N: FL-223 N: FL-223
W:FL-103 W:– – – W:FL-272
M: FL-272 M: FL-272 M: FL-223
N: FL-223 N: FL-223 N: FL-232
W: FL-103 W: FL-272 W: – – –
M: FL-272 M: FL-223 M: FL-272
N: FL-232 N: FL-232 N: FL-232
FL-94
FL-272
FL-23 + SFPC455E
FL-94