Icom IC-R75 Instruction Manual - Page 39

10 OPTION INSTALLATIONS ■ UT-106 d sp unit The UT-106 provides AF DSP functions such as noise reduction and auto notch. q R emove the top and bottom covers. w R emove the shielding plate. e R emove the connection cable (P1241) from J1221 on the MAIN unit. Connect the cable into J1 on the UT-106. r P lug the connection cable (P1) from the UT-106 to J1221 on the MAIN unit. t P lug the flat cable into J3 on the UT-106 and to J1231 on the MAIN unit. • Take care of the conductor direction. y A ttach the Velcro tape as shown at right. Attach the UT-106 to the reverse side of the MAIN unit. u R eturn the shielding plate, top cover and bottom cover to their original positions. UT-106 P1241 J3 P1241 J1231 J1221 ■ Optional IF filters 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 FL-232 rtty/cw narrow filter FL-100 cw narrow filter FL-223 ssb narrow filter FL-103 ssb wide filter 250 Hz/-6 dB 350 Hz/-6 dB 500 Hz/-6 dB 1.9 kHz/-6 dB 2.8 kHz/-6 dB 455 kHz optional filters: FL-53A cw narrow filter FL-52A cw/rtty narrow filter FL-222 ssb narrow filter FL-96 ssb wide filter FL-257 ssb wide filter 250 Hz/-6 dB 500 Hz/-6 dB 1.8 kHz/-6 dB 2.8 kHz/-6 dB 3.3 kHz/-6 dB 9 MHz filter D Installation q R emove the top cover as shown on the opposite page. w Install the desired 9 MHz filter as shown in the diagram 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 installed filter will not function properly. 455 kHz filter 35