[Yaesu] FT-840 Info From Yaesu (Long)

Thu Jun 21 17:56:47 EDT 2007

The FT-450 is a compact yet superb HF/50MHz radio with state-of-the-art IF 
DSP technology configured to provide World Class performance in an easy to 
operate package. New licensees, casual operators, DX chasers, contesters, 
portable / field enthusiasts, and emergency service providers…This Radio is 
for YOU !

      Compact Size & Lightweight

         The FT-450 is compact 9”W x 3.3”H x 8.5”D, lightweight 7.9 pounds 
package designed to be used as a desktop radio at home or in portable 
applications. The FT-450 can also be used mobile with the MMB-90 convenient 
mobile bracket accessory. Besides home or mobile operation, this easy to 
pack radio is a DXpeditioner or Emergency Service Providers dream come true 
- compact, lightweight, high performance receiver, and 100 watts on 160 
through 6 meters.

      Power Requirements

         The FT-450 can be powered by any convenient 13.8 VDC 22 amp 
external power source.

      Large Easy-to-Read LCD Display

         You will love the FT-450 9-segment Black-Nega type LCD frequency 
display with larger-than-normal easy to read characters.

      400 MHz built-in IF DSP

         Feature description will follow soon

      IF Roofing Filter

         The FT-450 includes a 10 kHz bandwidth Roofing Filter in the 68 MHz 
first IF, right after the first mixer. This filter provides narrow-band 
selectivity to protect the following IF and DSP stages – a feature rarely 
found in rigs in this price range!

      IF SHIFT & WIDTH

         The FT-450 IF Width and IF Shift features are the primary tools you 
should use for best interference reduction. After narrowing the bandwidth 
(Width) and/or adjusting the center of the passband (Shift), the Contour 
control (see details of this feature below) may also yield additional 
signal-enhancement benefits on the net residual bandwidth. What’s more, the 
IF Notch Filter (see details of this feature below) may also be utilized in 
conjunction with the three other filter systems to significant advantage. 
The IF WIDTH tuning system allows you to vary the width of the DSP IF 
passband to eliminate interference. Moreover, the bandwidth may actually be 
expanded from its default setting, should you wish to enhance incoming 
signal fidelity when interference on the band is low. The IF WIDTH is varied 
in steps: SSB - 1.8/2.4/3.0 kHz. AM - 3.0/6.0/9.0 kHz. FM - 2.5/5.0. CW - 
0.5/1.8/2.4 kHz. kHz. The IF SHIFT tuning system allows you to vary the DSP 
filter passband higher or lower, without changing the pitch of the incoming 
Signal to reduce or eliminate interference. Because the carrier tuning 
frequency is not varied, there is no need to re-tune the operating frequency 
when eliminating the interference. The total passband tuning range for the 
IF Shift system is ±1 kHz. Rotate the [SHIFT] knob to the left or right to 
reduce the interference. You may observe the position of the passband in the 
“SHIFT” indicator of the DSP Graphic Display portion of the LCD front panel 
main display.

      CONTOUR

         The Contour filtering system provides a gentle shaping of the IF 
filter pass band to suppress or enhance particular frequency components, 
thus improving the sound and/or readability of a received signal. The DSP 
Contour filter is a unique capability of the receiver, providing either 
Nulling or Peaking of tunable segments of the receiver passband to suppress 
interference or excessive frequency components on an incoming signal, or to 
peak those tunable frequency segments. The amount of Nulling / Peaking and 
the bandwidth over which it is applied are adjustable via the Menu. The peak 
position of the contour filter is graphically depicted in the “CONTOUR” 
indicator of the DSP Graphic Display portion of the LCD front panel main 
display. SPECIAL FILTERING NOTE: The steep slopes of the DSP filtering can, 
when adjusted aggressively, impart an unnatural sound to an incoming signal. 
Often, a narrow bandwidth is not the key to improving copy. The incoming 
signal itself may have undesirable or excessive frequency components. By 
judicious use of the Contour filter, the “shoulder” of the passband response 
may be altered, or components removed from within the passband, allowing the 
desired signal to rise above the background noise and interference in a 
manner not obtainable with other filtering systems.

      IF NOTCH

         The IF Notch filter is a highly effective system that allows you to 
slice out an interfering beat note or other carrier signal from inside the 
receiver passband. You may observe the graphically depicted peak position of 
the IF Notch filter in the “NOTCH” indicator of the DSP Graphic Display 
portion of the LCD front panel main display.

      DNR - Digital Noise Reduction

         The Digital Noise Reduction (DNR) feature utilizes eleven (11) 
different mathematical algorithms to analyze and suppress different noise 
profiles encountered on the HF/50 MHz bands. You get to choose the selection 
that provides the best noise suppression. The DSP’s Digital Noise Reduction 
(DNR) system is designed to reduce the level of random noise found on the HF 
and 50 MHz bands. It is especially effective during SSB operation. Any of 
eleven different noise-reduction algorithms can be selected. Each of these 
algorithms was created for dealing with a different noise profile. You will 
want to experiment with the DNR system to find the best setting according to 
the noise currently being experienced that concurrently will allow the 
signal to rise up out of the noise.

      Manual Notch Filter

         The FT-450 Manual Notch Filter is a highly-effective system that 
slices out an interfering beat tone/signal

      IPO/ 20 dB ATT built-in

         Feature description will follow soon

      CLARIFIER adjustment

         Feature description will follow soon

      QUICK SPLIT automatically set higher than the Main Frequency

         Feature description will follow soon

      TXW feature to monitor the xmit frequency when split

         Feature description will follow soon

      Digital Microphone Equalizer

         Custom set your rig to match your voice characteristics for maximum 
power punch on the band.

      CW Features:

         Feature description will follow soon

      • Built-In Electronic Keyer

         Feature description will follow soon

      • Memory Keyer

         Feature description will follow soon

      • Spotting (Zero-Beating) CW Training Feature

         Feature description will follow soon

      • Beacon Function (up to 118 characters)

         Feature description will follow soon

      Rugged die-cast aluminum chassis

         Feature description will follow soon

      Thermostatically controlled cooling fan

         Feature description will follow soon

      Dedicated Data Jack for FSK-RTTY operation

         Feature description will follow soon

      CAT System (D-sub 9 pin): Computer programming

         Feature description will follow soon

      Versatile Memory System

         Feature description will follow soon

      • 500 memory channels with 13 Memory Groups

         Feature description will follow soon

      My Band / My Mode function to recall personal favorites

         Feature description will follow soon

      CTCSS Operation (FM)

         Feature description will follow soon

      Important Feature For Visual Impaired Operators

         – Digital Voice Announcement - Select Frequency, Mode, Meter Reading

     Model 		Description

     FT-450 PKG-1 	FT-450 PKG-1

      Antenna Tuners

     FC-40 	

     The FC-40 is a new, wide-range Antenna Coupler for the FT-450, FT-857, 
and FT-897 Series of Transceivers.

     The FC-40 is a microprocessor-controlled antenna impedance matching 
network designed for use with all versions (original and “D”) of the FT-450, 
FT-857, and FT-897 HF/VHF/UHF Transceivers. The FC-40 makes use of control 
circuitry inside the transceiver, allowing the operator to monitor and 
control operation of the FC-40, which mounts near the antenna feedpoint. 
Fully waterproof, the FC-40 may be mounted outdoors in exposed locations, 
and will handle a 100 Watts of transmitter power.

     The FC-40 is designed for operation on 7 ~ 54 MHz, when using an 8’ 
whip like the YAESU YA-007, or on 1.8 ~ 54 MHz when used with a 
random-length wire longer than 66’. Matching time is typically five seconds 
or less, and the required drive power is 4 ~ 60 Watts. The FC-40 sports a 
whopping 200 match-setting-point memories, for instant recall of the tuning 
settings.

      Antennas

     ATAS-120 	Active-Tuning Antenna System

      Brackets

     MMB-90 	Mobile Mounting Bracket for FT-450

      Microphones

     MD-100A8X 	Desktop Microphone 	  	
     MD-200A8X 	Desktop Microphone 	  	
     MH-31A8J 	Hand Microphone 	  	
     MH-36E8J 	DTMF Mobile Microphone

      Power Supplies

     FP-1030A 	30A Power Supply 110V

     Amateur Radio \ Brochures \ HF/Satellite Transceivers and Amps

           FT-450 Brochure  ( 1.74 MB )
           FT-450 Poster  ( 8.58 MB )

     Amateur Radio \ Manuals \ HF/Satellite Transceivers and Amps

           FT-450 CAT Operation Reference Book  ( 702.98 KB )
           FT-450 Operators Manual  ( 8.63 MB )

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