Icom IF1721/D Instruction Manual

Icom IF1721/D Instruction Manual Manual pdf 35 page image

304CONNECTION AND MAINTENANCE12345678910111213141516Antenna■A key element in the performance of any communication sys-tem is an antenna. Contact your dealer about antennas andthe best places to mount them.Fuse replacement■A fuse is installed in the supplied DC power cable. If a fuseblows or the transceiver stops functioning, track down thesource of the problem if possible, and replace the damagedfuse with a new rated one.❑ Fuse rating: 20 AUSE the 20 A fuse only.Cleaning■If the transceiver becomes dusty or dirty, wipe it clean with asoft, dry cloth.AVOID using solvents such as benzene or alcohol,as they may damage the transceiver surfaces.Options■• RMK-2 separation kit +OPC-607/OPC-608/OPC-609 separation cablesAllows you to install the transceiver main unit separately from thefront panel for operating convenience.• SP-5/SP-10/SP-22/SP-30/SP-35 external speakersInput impedance : 4 øMax. input power : 6 W (SP-5)/5 W (SP-10)/7 W (SP-22/SP-35)/30W (SP-30)SP-5 : Large speaker for good audio quality.SP-10 : For all-round mobile operation.SP-22/SP-35 : Compact and easy-to-install.SP-30 : High input power level.• HM-152/HM-152T/HM-148G/HM-148T hand microphonesHM-152 : Hand microphoneHM-152T : DTMF microphoneHM-148G : Self ground heavy duty microphoneHM-148T : Self ground heavy duty DTMF microphoneThe 10-keypad of this microphone can be used for theDTMF code transmission only.• SM-25 desktop microphone• UT-109 (#02)/UT-110 (#02) scrambler unitsNon-rolling type (UT-109)/Rolling type (UT-110) voice scramblerunit provides higher communication security.• OPC-617 acc cableAllows you to connect to an external terminal.Some options may not be available in some countries. Please askyour dealer for details.