2-2[REMOTE]Used to remotely controls the receiver withthe CI-V format data.(3.5 mm, ⅛ in (d)) You can download the USB driver and installationguide from the Icom website.http://www.icom.co.jp/world/support/download/firmIn the remote control mode, push [LOCAL] to return to the normal(Local) mode (LOCAL LED turns OFF).*Except , and .[EXT-SP]Connects to an external speaker such asthe optional SP-39AD.(3.5 mm, ⅛ in (d))• Output impedance: 4 ~ 8 Ω• Output level: More than 2 W at 10% distortion into an 8 Ωload.[DC IN]Connects to the optional SP-39AD.When the SP-39AD or AD-55NS is connected,connect the supplied DC short connector to [DC13.8V].[DC13.8V]Accepts the regulated DC power for13.8 V DC (±15%), through thesupplied DC power cable.WARNING! NEVER reverse the DC power cablepolarity (Red= , Black= ).[ANT 1] • Frequency range: 10 kHz ~ 3000 MHz• Input impedance: 50 Ω (unbalanced) When the receive frequency is set to between 10 kHz and29.999999 MHz, you can select the antenna on [ANT 1] ~ [ANT 3].[ANT 2] • Frequency range: 10 kHz ~ 30 MHz• Input impedance: 50 Ω (unbalanced)[ANT 3]For a long wire antenna.• Frequency range: 10 kHz ~ 30 MHz• Input impedance: 400 ~ 500 Ω (unbalanced)[AUX]A reserved terminal. No internal connection.[PHONES]Connects to standard stereo headphones.(3.5 mm, ⅛ in (d))• Output impedance: 8 ~ 16 Ω• Output level: More than 50 mW (into an 8 Ω load)SO-239View from the rearType-NRCA typeRCA type