35
10
OPTION INSTALLATIONS
■ UT-106
DSP UNIT
■ Optional IF filters
The UT-106 provides AF DSP functions such as noise
reduction and auto notch.
q Remove the top and bottom covers.
w Remove the shielding plate.
e Remove the connection cable (P1241) from J1221
on the MAIN unit. Connect the cable into J1 on the
UT-106.
r Plug the connection cable (P1) from the UT-106 to
J1221 on the MAIN unit.
t Plug the flat cable into J3 on the UT-106 and to
J1231 on the MAIN unit.
• Take care of the conductor direction.
y Attach the Velcro tape as shown at right. Attach
the UT-106 to the reverse side of the MAIN unit.
u Return the shielding plate, top cover and bottom
cover to their original positions.
Several IF filters are available for the IC-R75. You can
install 1 filter for both 9 MHz and 455 kHz IF. Choose
appropriate filter for your operating needs.
9 MHz optional filters:
FL-101
CW NARROW FILTER
250 Hz/–6 dB
FL-232
RTTY
/
CW NARROW FILTER
350 Hz/–6 dB
FL-100
CW NARROW FILTER
500 Hz/–6 dB
FL-223
SSB NARROW FILTER
1.9 kHz/–6 dB
FL-103
SSB WIDE FILTER
2.8 kHz/–6 dB
455 kHz optional filters:
FL-53A
CW NARROW FILTER
250 Hz/–6 dB
FL-52A
CW
/
RTTY NARROW FILTER
500 Hz/–6 dB
FL-222
SSB NARROW FILTER
1.8 kHz/–6 dB
FL-96
SSB WIDE FILTER
2.8 kHz/–6 dB
FL-257
SSB WIDE FILTER
3.3 kHz/–6 dB
D Installation
q Remove the top cover as shown on the opposite
page.
w Install the desired 9 MHz filter as shown in the dia-
gram below.
• The filters can be installed in either direction.
e Install the desired 455 kHz filter as shown in the
diagram below.
r Replace the top cover.
After filter installation, specify the installed filter
using filter set mode. (p. 19) Otherwise, the in-
stalled filter will not function properly.
