Page 1FT-450D OPERATION MANUALTABLE OF C ONTENTSRTTY (RADIO TELETYPE) OPERATION .......... 74SETTING UP FOR RTTY OPERATION .......................... 74BASIC SETUP ................................................................. 74PACKET OPERATION ....................................... 75PACKET SETUP(INCLUDING SUBCARRIER FREQUENCY) ........... 75BASIC SETUP ................................................................. 75PSK OPERATION ............................................... 76BASIC SETUP ................................................................. 76MISCELLANEOUS AFSK-BASEDDATA MODES ................. 77MENU MODE ..................................................... 78USING THE MENU .......................................................... 78MENU MODE RESET ...................................................... 78GENERAL F EATURESSuper Compact HF Transceiver with IF-DSPBuilt-in ATU (automatic antenna tuner)Great HF radio performance, with uncomplicated operation, is realized with the very small FT-450D HFtransceiver. HF + 50 MHz with 100 Watts output all mode operation Small, compact and light-weight HF radio, 9” (W) x 3.3” (H) x 8.5” (D) (229 x 84 x 217 mm), 8.8 lb (4.0 kg) Large 9-segment LCD display characters, provide easily read frequency indication Black-Nega type LCD Illumination Button Built-in IF DSP unit that performs all of the following functions: Modulation and Demodulation CONTOUR MANUAL NOTCH DNR WIDTH (CW narrow 300 Hz operation available without any optional filters) Microphone equalizer built in Speech Processor DSP VOX operation Two Voice memory channels included Frequency read out function TCXO built-in 500 memory channels IF SHIFT IPO 20 dB ATT built-in Clarifier Electronic keyer built-in Microphone and phone jacks on the front panel FSK-RTTY TX operation Long wire antenna can be used by the optional FC-40CLONING ........................................................... 88INSTALLATION OFOPTIONAL ACCESSORIES .................... 90AUTOMATIC-MATCHING 200-MEMORYANTENNA TUNER FC-40 OPERATION ....................... 90ACTIVE-TUNING ANTENNA SYSTEM(ATAS-100/-120/120A) OPERATION .................... 92CARRYING HANDLE MHG-1 INSTALLATION ............... 94MOUNTING BRACKETMMB-90 INSTALLATION ............................ 95SPECIFICATIONS .............................................. 96FCC NOTICE ...................................................... 98Congratulations on the purchase of your Yaesu amateur transceiver! Whether this isyour first rig, or if Yaesu equipment is already the backbone of your station, rest assuredthat your transceiver will provide many hours of operating pleasure for years to come.