Icom IC-910H [77/86] I fl 132 fl 133

Icom IC-910H [77/86] I fl 132 fl 133
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OPTION INSTALLATIONS
The IC-910H has a CW narrow mode to provide bet-
ter S/N (Signal-to-Noise), or to reject interference. To
operate the CW narrow mode, an optional CW narrow
lter is necessary.
NOTE: For CW narrow mode during satellite opera-
tion, the FL-133 (for SUB band lter) is necessary
since the SUB band circuit is used for receiving, al-
though the MAIN band display shows receive fre-
quency.
q Remove the bottom cover as shown in the diagram
on p. 71.
Remove the UX-910 if you have installed it. (p. 73)
w Disconnect the connection cable connectors from
J501 and J1051 on the MAIN unit.
e Remove the 2 clips.
WARNING!
BE CAREFUL not to pinch your finger with the
clip.
r Remove the 6 screws from the MAIN unit, then lift
up the MAIN unit.
t Install FL-132 or FL-133 to the specied position on
the MAIN unit.
y Solder then cut the leads, keeping 23 mm (
1
8) of
the leads from the bottom of the MAIN unit.
u Return the MAIN unit and clips to their original posi-
tions.
i Re-connect the connection cable connector to J501
and J1051 on the MAIN unit.
o Return the bottom cover to the original position.
FL-132
(MAIN)
FL-133
(SUB)
PLL unit
MAIN unit
J1051
J501
Clips
FL-132/FL-133
CW NARROW FILTER
FILTER
Passband width
at 6 dB at 60 dB
Built-in lter 2.3 kHz 4.2 kHz
FL-132/133 500 Hz 1.34 kHz

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