Yaesu FT-450D Operation Manual

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Page 20 FT-450D OPERATION MANUALRECEIVINGABOUT THE [UP]/[DWN] BUTTONS OF THE MH-31 A8J The microphone [UP]/[DWN] keys utilize the tun-ing steps of the [MAIN DIAL] knob on the SSB/CW/DATA mode, and utilize the tuning steps ofthe [DSP/SEL] knob on the AM/FM mode. When the microphone [FST] key is pressed, thetuning rate increases by a factor of ten, in a man-ner similar to the effect of the transceiver front-panel [FAST] button.CLARIFIERYou may change the receiving frequency only without changing the transmit frequency.1. Press the [CLAR] button to activate the clarifier.The “ ” icon will appear on the display.2. Rotate the [MAIN DIAL] knob to tune the desiredreceive frequency. (Offset of up to ±9.99 kHz maybe set using the clarifier.)The offset frequency will appearat the bottom right corner of thedisplay.3. Press the [CLAR] button again to disable the clari-fier. The “ ” icon will disappear from the dis-play.[MAIN DIAL] knob[CLAR] buttonClarifier Offset When the receiving frequency ishigher than transmit frequency,“+” will be appended to the off-set frequency.When the receiving frequency islower than transmit frequency, “–”will be appended to the offset fre-quency. You may assign the CLAR function to the [DSP/SEL] knob via the Menu Item “CLAR”.NOTE: Even when the clarifier is disabled, the varianceof the clarifier remains (both TX and RX frequen-cies). Press and hold in the [CLAR] button for one sec-ond to clear the clarifier offset, meaning the re-ceiving frequency is equal to the transmit fre-quency. When the [MAIN DIAL] knob is rotated to changethe frequency after disabling the clarifier, the clari-fier offset becomes “zero”, meaning the receiv-ing frequency is equal to the transmit frequency.DYNAMIC MICROPHONEMH-31DWN FST UP[DWN] Key[FST] Key[UP] Key