User manual YAESU FTDX9000D DATA MANAGEMENT OPERATION MANUAL

[. . . ] FTDX9000D Operation Manual GENERAL DESCRIPTION We wish to take this opportunity to thank you for your purchase of the FT DX 9000D Transceiver!But it also is the product of our company's fifty years of engineering, design, and manufacturing know how. As pioneers in the development of SSB, we have led the technological advances in Amateur Radio communications over the last half century. And now, with the introduction of the FT DX 9000D, we again lead the way with a no-compromise 21st-century design that will make your operating dreams come true. [. . . ] The imbedded LED will turn off, confirming that the DNR system is not active. ADVICE The Sub band (VFO-B) frequency display will show the current noise reduction parameter for 3 seconds whenever the [DNR] knob is turned. You may disable this feature (displaying the current noise reduction parameter) via Menu item "DISPLAY 022 LEVEL INDICATOR. " See page 144 for details. FT DX 9000D OPERATION MANUAL Page 77 INTERFERENCE REJECTION (SIGNALS WITHIN 3 KHZ) NARROW (NAR) ONE-TOUCH IF FILTER SELECTION Pressing the [NAR] switch provides one-touch, mode-specific selection of a narrow IF DSP filter setting that does not depend on the setting of the Width control. Pressing the [NAR] switch once more returns the bandwidth control to the Width/Shift system. The factory default bandwidths are: [NAR] switch SSB Mode Pressing the [NAR] switch selects a bandwidth of 1. 8 kHz. CW/RTTY/PKT Modes Pressing the [NAR] switch selects a bandwidth of 300 Hz. FM Mode (28/50 MHz Bands) Pressing the [NAR] switch selects a bandwidth of 9 kHz. NOTE When the [NAR] button is pressed, the [WIDTH] control no longer functions. MAIN (VFO-A) WIDTH (BW) "NAR" may be observed on the TFT SUB (VFO-B) WIDTH (BW) "NAR" may be observed on the TFT ADVICE [NAR] switch is pressed may be adjusted using the Menu. This allows you to The bandwidth applied when the customize a quick-switch "Narrow" bandwidth matching your operating needs (in examples below the default setting is underlined). SSB Main (VFO-A) RX DSP 104 MAIN-SSB-NARROW 200/400/600/850/1100/1350/1500/1650/1800/1950/2100/2250 Hz Sub (VFO-B) RX DSP 116 SUB-SSB-NARROW 200/400/600/850/1100/1350/1500/1650/1800/1950/2100/2250 Hz CW Main (VFO-A) RX DSP 095 MAIN-CW-NARROW 25/50/100/200/300/400 Hz Sub (VFO-B) RX DSP 107 SUB-CW-NARROW 25/50/100/200/300/400 Hz PSK Main (VFO-A) RX DSP 098 MAIN-PSK-NARROW 25/50/100/200/300/400 Hz Sub (VFO-B) RX DSP 110 SUB-PSK-NARROW 25/50/100/200/300/400 Hz RTTY Main (VFO-A) RX DSP 101 MAIN-RTTY-NARROW 25/50/100/200/300/400 Hz Sub (VFO-B) RX DSP 113 SUB-RTTY-NARROW 25/50/100/200/300/400 Hz When the [NAR] button has been pushed so as to engaged the narrow filter, the Width control will be disabled, but IF Shift still is operational. For many applications, you may find that simple adjustment of the [WIDTH] control, instead of engaging the Narrow filter, may be satisfactory for interference reduction. When you press the [NAR] button in the FM mode, both the transmit and receive bandwidths are narrowed. Page 78 FT DX 9000D OPERATION MANUAL INTERFERENCE REJECTION (SIGNALS WITHIN 3 KHZ) DIGITAL NOTCH FILTER (DNF) OPERATION The Digital Notch Filter (DNF) is an effective beat-cancelling filter that can null out a number of interfering beat notes inside the receiver passband. Because this is an Auto-Notch feature, there is no adjustment knob associated with this filter. MAIN (VFO-A) [DNF] switch SUB (VFO-B) [DNF] switch SUB (VFO-B) [RX] switch Main (VFO-A) Band DNF Operation Press the Main band's (VFO-A) [DNF] switch to engage the Digital Notch filter. The LED imbedded in the switch will glow Red, to confirm that the DNF circuit is engaged. To cancel DNF operation, press the Main band's (VFOA) [DNF] switch once more. The imbedded LED will go out, confirming that the Digital Notch Filter is no longer in operation. Press the Sub band's (VFO-B) [RX] switch to engage Dual Receive operation. Press the Sub band's (VFO-B) [DNF] switch to engage the Digital Notch filter. The LED imbedded in the switch will glow Red, to confirm that the DNF circuit is engaged. To cancel DNF operation, press the Sub band's (VFO-B) [DNF] switch once more. The imbedded LED will go out, confirming that the Digital Notch Filter is no longer in operation. ADVICE If a very strong interfering carrier is encountered, we recommend you first use the IF Notch filter, as it is the most effective notching tool in the receiver section. FT DX 9000D OPERATION MANUAL Page 79 INTERFERENCE REJECTION (SIGNALS WITHIN 3 KHZ) IF NOISE BLANKER (NB) OPERATION The FT DX 9000D includes an effective IF Noise Blanker, which can significantly reduce noise caused by automotive ignition systems. MAIN (VFO-A) [NB] knob MAIN (VFO-A) [NB] switch SUB (VFO-B) [NB] knob SUB (VFO-B) [NB] switch SUB (VFO-B) [RX] switch Main (VFO-A) Band NB Operation 1. Press the Main band's (VFO-A) [NB] switch momentarily to reduce a short pulse noise such as from switching transients, automobile ignitions and power lines. The LED imbedded in the switch will glow Red to confirm that the Narrow-NB is operating. [. . . ] Available Values: SIMP/DUP Default Setting: SIMP When this menu is set to "DUP, " you may receive on the Sub band (VFO-B) frequency while transmitting, during dual receive operation, on a different band on the Main band (VFO-A). 174. Available Values: ALL MODE/CARRIER Default Setting: ALL MODE ALL MODE: The RF PWR knob is enabled on all modes. In this configuration, the SSB output power will be set to maximum, regardless of the [ RF PWR] knob's position. 178. VOX SELECT Function: Selects the audio input source for triggering TX during VOX operation. [. . . ]