1 PANEL DESCRIPTION1-14Main unit — Front panelq COOLING FANThis is a cooling fan for heat dissipation.Depending on the internal temperature, it rotates ata Low, Mid or High speed.w SD CARD SLOT [SD CARD]Insert an SD card of up to 32 GB SDHC.See FM sec. 13 for details.Main unit — Rear panelq ANTENNA CONNECTOR 1 [ANT1]w ANTENNA CONNECTOR 2 [ANT2] (p. 2-2)Connect a 50 ø antenna with a PL-259 plug con-nector.• [ANT1] is used for the HF, 50/70 MHz frequency bands.• [ANT2] is used for the 144/430 MHz frequency bands.• [ANT1] is used below 74.8 MHz, and [ANT2] is used for74.8 MHz or above.When using an optional AH-4, AH-740 or AT-180Automatic antenna tuner, connect it to the [ANT1]connector.e GROUND TERMINAL [GND] (p. 2-2)Connect this terminal to ground to prevent electricalshocks, TVI, BCI and other problems.r TUNER CONTROL SOCKET [TUNER] (p. 2-6)Connect the control cable from an optional AH-4 orAH-740 Automatic antenna tuner.t DC POWER SOCKET [DC 13.8V] (p. 2-7)Connect 13.8 V DC through the supplied DC powercable.Rear panel viewy CONTROLLER CONNECTOR [CONTROLLER]Connects to the Controller using with the suppliedOPC-2253 Control cable.• The OPC-2253 Control cable is 3.5 meter (11.5 feet)length.• DO NOT use any third party’s Ethernet cables.qwqw e r tyuio!0!1!2!3!4