Yaesu FTDX9000D Operation Manual

Also see for FTDX-9000D: Operation manual Brochure & specs Update guide Update guide Update guide

Contents

Page 72 FTDX9000D OPERATION MANUALSUB(VFO-B)DNR switchMAIN(VFO-A)DNR knobMAIN(VFO-A)DNR switchSUB(VFO-B)DNR knobMAIN (VFO-A) SUB (VFO-B)SUB(VFO-B)RX switchDIGITAL N OISE R EDUCTION (DNR) O PERATIONThe Digital Noise Reduction (DNR) system is designed to reduce the level of random nose found on the HF and 50 MHzband, and it is especially effective during SSB operation. By rotating the DNR knob, any of sixteen different noise-reduction algorithms can be selected; each of these algorithms was create for dealing with a different noise profile, and youwill want to experiment with the DNR system to find the best setting according to the noise currently being experienced.Main (VFO-A) Band DNR Operation1. Press the Main (VFO-A) band’s DNR switch (# ).The LED imbedded in the switch will glow Red, con-firming that the DNR system is engaged.2. Rotate the Main (VFO-A) band’s DNR knob (# )to select the setting that most effectively reduces thenoise level.To disable the DNR system, press the Main (VFO-A) band'sDNR switch once more. The imbedded LED will turnoff, confirming that the DNR system is not active.Sub (VFO-B) Band DNR Operation1. Press the Sub (VFO-B) band’s RX switch to engageDual Receive operation.2. Press the Sub (VFO-B) band’s DNR switch (# ).The LED imbedded in the switch will glow Orange,confirming that the DNR system is engaged.3. Rotate the Sub (VFO-B) band’s DNR knob (# ) toselect the setting that most effectively reduces the noiselevel.To disable the DNR system, press the Sub (VFO-B) band'sDNR switch once more. The imbedded LED will turnoff, confirming that the DNR system is not active.Interference Rejection (Signals within 3 kHz)