Yaesu FT-450 Operation Manual

Also see for FT-450: Brochure & specs Reference Manual User manual Technical supplement

Page 20 FT-450 OPERATION MANUALRECEIVINGABOUT THE [UP]/[DWN] BUTTONS OF THE OPTIONAL MH-31 A8J AND MD-100 A8X The microphone’s [UP]/[DWN] buttons utilize thetuning 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. In the factory default, the microphone’s [FST] but-ton does not activate. However, you may activatethe microphone’s [FST] button via the Menu Item“P M-FST”.NOTE: The microphone holder is affixed to the placewhere is contacted to the ground (for example,the chassis of your car), and the microphone ishooked on the microphone holder, the [FST] func-tion becomes “ON”. We recommend that not to contact the micro-phone holder to the ground, nor set menu item“P M-FST” to “N/A”.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.DYNAMIC MICROPHONEMH-31DWN FST UP[DWN] Button[FST] Button[UP] Button[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.