Page 58 FTDX9000D OPERATION MANUALANTENNA SELECTIONFour main antenna jacks, available for both transmission and reception, are provided on the rear panel of the transceiver.What's more, a receive-only jack is provided, and the incoming signal path may also have a special after-market filter orpreamplifier inserted, if desired, with one-touch access.ANTENNA SELECT switchSelection of the desired TX/RX antenna is accomplishedby pressing the appropriate 1 ~ 4 Antenna Selectionswitch (# ) on the front panel.To engage the RX-only antenna, press the RX switchwithin the Antenna Selection switch group (# ) on thefront panel. The RX-only antenna must be connected tothe corresponding “RX ANT” antenna jack on the rearpanel.The antenna currently selected for use on the Main (VFO-A) band will be designated by a Red LED.The antenna currently selected for use on the Sub (VFO-Bband will be designated by an Orange LED.If both the Main and Sub bands are utilizing the same an-tenna, both the Red and Orange LEDs will light up on thesame antenna location.ANTENNA SWITCH(VFO-A)ANT “1”ANT “3”ANT “2”ANT “4”RX ANTRX OUT(MAIN)RX OUT(SUB)ANTENNA SWITCH(VFO-B) RX ANTENNA SWITCH(VFO-B)RX ANTENNA SWITCH(VFO-A)TX/RX RELAYTransmitterSectionMAIN (VFO-A)ReceiverSUB (VFO-B)ReceiverBPFCONVENIENT F EATURES