Yaesu FT DX1200
Yaesu FT DX1200
THE FT DX 1200 HF/50MHz Transceiver.
Continuing the Yaesu “FT DX”
Legacy of Excellence established decades ago, the FT DX 1200 is designed
for the casual operator as well competitive operating situations,
whether you primarily operate in Contests, chase DX or enjoy Field
operating.
The High Frequency Design Technology it has inherited ensures “Best in Class Performance”.
The FT DX 1200 provides up to
100 Watts on SSB, CW, FM, and AM (25 Watts carrier) and a rugged state
of the art highly balanced receiver circuit configuration for top
performance on today’s crowded bands.
Similar to the high-end “YAESU FT DX” series, it uses 32-bit high speed floating point DSP for renowned proven performance.
A built-in 4.3-in TFT wide full
color High Resolution Display with loads of information provides
superior operability and visibility for the FT DX1200 user.
A Spectrum Scope located just
below the LCD display gives the operator all the information needed to
place them at the right place on the band with the right receiver set-up
to have a satisfying experience with a casual QSO chat or while digging
out a rare desired weak signal contact.
Optional Accessories are
offered to provide very desirable additional features that make the FT
DX 1200 a flexible true high performance platform for all hams – no
matter what mode they chose to operate.
Yaesu FT DX1200 .160 through 6 Meters – SSB/CW/FM/AM/Digital.
With efficient dimensions of 14.4″ x 4.5″ x 12.3″ (W x H x D)
and weighing in at only 20.9 pounds, the FT DX 1200 is a solidly packed
transceiver ready to give very high performance on all Amateur Radio
bands from 160 to 6 meters. • General Coverage Reception from 30 kHz to 56 MHz .
Yaesu FT DX1200 .
• FM & AM – Wide and Narrow modes included.
100 Watts of Solid Performance.
The RF Final Amplifier produces a clean 100 watt (some modes less) transmit signal.
A large heat sink is combined with the die cast aluminum chassis for efficient heat dissipation.
A cooling fan located beside
the final amplifier and the TX Low Pass Filter ventilates the heat away
from inside of the transceiver cabinet.
This large axial flow fan is mechanically isolated from the chassis to reduce vibration and noise.
The speed of the fan is continuously controlled by the temperature of the PA amplifier; starting at 40 degree C.
Antenna Tuner Included.
High Speed Automatic Antenna Tuner included. The antenna tuner uses LC switching.
It has a large capacity 100
channel memory; the tuning data is automatically memorized to reduce
tuning time when changing frequency.
Smooth Main Tuning Knob Feel.
The Main Tuning Knob, made from marchined aluminum parts, has
the solid feeling of a largre flyweheel, while being nimble and smooth
in operation.
Yaesu FT DX1200.
Each user may set his/her favorite torque feeling of the Main Dial rotation.
USB Capable.
The FT DX 1200 can be connected to a PC with a USB cable through the use of an optional SCU-17 Interfeace Unit.
This unit will support CAT, USB Audio In/Out, TX control (PTT, Key, Shift), and firmware updates.
Remote Control From A Distant Location.
External control (CAT) is possible using Serial Port or the optional SCU-17 USB Interface Unit.
This feature means the FT DX 1200 can be remotely controlled from a distant location!
Big TFT Full-Color Display For Superior Operability and Visibility.
The FT DX 1200 presents a wide view angle, high contrast LCD 4.3
inch TFT impressive full color display that provides a convenient view
of the radio’s working functions.
Superior operability is realized with this convenient display.
It permits excellent visibility from different viewpoints.
Even with the many FT DX 1200 features and functions, the TFT display makes operation of the radio easy and comfortable.
Yaesu FT DX1200.
• A Block Diagram Displays RX Signal Path.
• Choose Analog Type or Bar Graph Meter.
• Separate VFO-A, VFO-B Transmit and Receive Frequency Display.
• Bandwidth of the spectrum scope: 20kHz, 50kHz, 100kHz, 200kHz, 500kHz, or 1MHz.
• TX and RX markers appear during “spit” operation.
• Level Indicator.
The function names and the setting levels of the following
functions are shown in the TFT main display when a function knob is
rotated:
Clarifier, Microphone Gain, Speech Processor, SHIFT, WIDTH, KEYER SPEED and CONTOUR.
Yaesu FT DX1200 .
• Cursor Keys .
Six keys that are used frequently in normal operation are located at the left side of the TFT display.
Other functions can be
operated by pressing the “SCOPE” key which changes the “Spectrum Scope
screen” to “Function Key Display screen”.
Even if the radio is turned off, the last operated Key Function is memorized and highlighted.
• Spectrum Scope.
The FT DX 1200 has a standard automatic sweeping high speed spectrum scope in line with dial operations.
The spectrum scope function
that allows for an instant view of the signals, their strengths and
distribution within a band is supplied as standard. The spectrum scope
sweep function has two modes available: the normal mode, where the band
is swept once when the SELECT button is pressed, and the AUTO mode where
the band is automatically swept at preset intervals.
No receive audio is generated
during sweeping, but as sweeping is done at an extremely high speed this
is a brief instant of approximately 300 msec.
If the operator quickly
operates the main dial to make a big frequency change in AUTO mode, an
automatic sweep is performed and the display is refreshed.
Yaesu FT DX1200.
This enables frequency tuning while checking the spectrum in real time.
The moment tuning is halted
the receive frequency audio is resumed; as no sweeping is performed
during slow frequency changes to tune in to another station, there is no
interruption to the receive audio.
Operation therefore feels natural and is without stress.
Additonal scope features include:
1. Six different options: 20 kHz, 50 kHz, 100 kHz, 200 kHz, 500 kHz and 1 MHz.
2. TX and RX markers are displayed in the spectrum scope,
enabling the user to confirm the relationship between the receive and
transmit frequencies at a glance.
Yaseu FT DX1200.
This is particularly useful in the case of split operation.
3. Full TFT screen signal spectrum can be viewed in detail by simply pressing the SCOPE key.
• Optional FFT-1 Unit provides the following additional features:
1. AF-FFT (Audio Frequency Fast Fourier Transform) scope.
This AF-FFT function was first demonstrated in the FT DX 9000 series.
With this Scope, the audio
characteristics of the received signals; the effect of adjusting the RX
IF filter performance; and utilizing the QRM rejection features, may be
visually observed.
It is also possible to observe the TX audio characteristics of your own signal while using the Monitor function.
This is very effective for tuning the parametric equalizer for voice characteristics and the microphone audio.
2. RTTY/PSK31 Encode Decode.
3. CW Decode.
4. CW Auto Zero-in.
Superior Triple Conversion Receiver.
The FT DX 1200 high performance triple conversion receiver
circuit structure enables elimination of unwanted signals through
filters at each stage as well as optimized gain distribution.
Top Performing Receiver RF Front End.
The receiver front end is exposed to strong signals directly from the antenna.
Yaesu engineers carefully
selected and tested active elements like the RF amplifier, but also
passive circuit components and coils, so that no spurious or unwanted
signals are created.
By pressing the ATT key on the
front panel, the operator picks from four selectable stages of
attenuation to attenuate interfering strong signals. The effect of
strong out of band interfering signals on the RF amplifier is further
reduced by significant attenuation through 8 band pass filters in the FT
DX 1200 .
Effective QRM and QRN Rejection.
Effective QRM rejection is achieved from the FT DX 1200 IF DSP.
The 32-bit high speed floating
decimal point DSP, TMS320C6727B (maximum 2800 MIPS/ 2100 MFLOPS) made
by Texas Instruments, is used for the IF section of the FT DX 3000. The
signal is processed with the high speed 300 MHz clock frequency.
• Proven IF WIDTH and IF SHIFT functions provide great QRM rejection performance.
IF SHIFT.
With the normal bandwidth, the pass band area can be moved relatively, so that harmful signals are rejected from the pass band.
IF WIDTH.
By adjusting the band width, Interfering signals can be removed
from both sides of the pass band, without changing the pass band
position.
The IF width function can make the pass band narrower with one-touch.
This function is effective in a
pile-up or contest, when the undesired signals are located just above
and below the target signal.
• CONTOUR .
The CONTOUR function ideally tailors the received audio signal without changing the bandwidth.
The CONTOUR function varies
the outline of the IF DSP filter pass band characteristics, and the
in-band signal construction can be partially altered.
Different from the IF SHIFT or
IF WIDTH, the special CONTOUR pass band, can reduce or peak the desired
signal, partially and continuously across the pass band. This feature
is effective especially when the undesired signal is close to the center
frequency.
• Digital Noise Reduction (DNR) by DSP.
The installed digital noise reduction circuit provides 15 separate parameters.
The noise reduction constants
may be set to the optimal working point by varying the 15 step
parameters according to the actual noise within the
Yaesu FT DX1200 .
HF band.
The desired signal components are peaked and the random noise components are effectively cancelled.
• IF NOTCH.
This high Q circuit has steep attenuation characteristics of
70dB or more. Effective removal of a strong beat signal is obtained.
The damping characteristics
can be switched to wide or narrow band width, and the attenuation level
may be adjusted in the Setting Mode Menu. Interfering signals may be
attenuated, while minimizing the impact on the received signal.
• CW APF (Audio Peak Filter)
In the CW mode, the APF (Audio Peak Filter) function has an
audio peak at the signal frequency; this improves the S/N and increases
the readability of the CW signal.
Yaesu FT DX1200 .
The APF peak frequency can be finely aligned.
Selectable Roofing Filers.
Roofing filters of 3 kHz, 6 kHz and 15 kHz filters are fitted before the 40.455 MHz 1st IF.
These filters reduce the later burden on the receiver mixer and improves the adjacent multi signal characteristics.
Very Low Noise Floor – Terrific Signal to Noise Ratio.
The S/N ratio (signal-to-noise ratio) of the local signal that
is injected into the 1st IF mixer is one of the most important factors
for improving the receiver properties in the ultra-multi-signal
environment.
Yaesu FT DX1200 .
In the FT DX 1200, the combination of it’s high stability and
high accuracy 40 MHz TCXO (± 0.5ppm, -10 °C ~ +60 °C), and it’s DDS
create the fundamental frequency of this radio, and is locked to the
PLL-IC and VCO directly.
This circuit construction and method creates the highest quality local signal, with superior S/N performance.
Three IPO Settings – Best Signal Reception During Changing Band Conditions.
3-step IPO settings permit the operator to select the most
appropriate gain for best signal reception. This variety of selections
provides superior receiver performance and the best possible
communications with changing band conditions. The IPO (Intercept Point Optimization) is selected by a control switch located on the front panel.
The IPO selection determines the gain of the RF amplifier.
The gain setting is very
effective in optimizing the receiver performance, depending on the
antenna and the communication propagation conditions.
The IPO, the ATT and one stage of the RF amplifier are used to optimize the signal levels that are sent to the mixer.
High Quality Audio With Punch.
The modulation circuit of the FT DX 1200 utilizes digital
variation operational modulation, which creates ideal high quality
transmission audio.
• Microphone Amplifier that includes Parametric Equalizer.
The modulation circuit of the FT DX 1200 utilizes the digital
variation operational modulation type, which creates ideal high quality
transmission audio.
This radio has a parametric
equalizer that makes possible versatile adjustment of the TX audio
quality by aligning the TX band audio spectrum. The parametric equalizer
can alter the Low, Mid and High part of the audio separately.
This three stage parametric
equalizer can generate high quality TX audio sound because it can be
tuned in detail…without sacrificing the audio dignity.
• IF DSP Speech Processor – DX’er and Contester Proven.
The SSB Speech Processor uses IF digital signal processing to
increase the intelligibility of the transmitted signal during weak
signal crowded conditions.
The DSP increases the average
power of the important speech spectrum components and reduces the TX
power of the less significant components.
Adjust the compression level
in the Menu Mode to adapt the transmitted SSB signal to best suite your
voice characteristics, the situation, propagation conditions and pile-up
demands.
Two Antenna Inputs.
Two antenna connectors are available on the FT DX 1200 Rear Panel.
• Having multiple antenna selections is an especially effective feature for DX and Contest operating.
• Antenna connection selections memorized and recalled when changing bands.
• It is possible to use Ant 1 for transmit and Ant 2 for receive.
For the CW Enthusiast.
CW Zero-in Display.
The TX CW side tone pitch frequency can be adjusted in the MENU.
The setting range is 300 Hz to 1050 Hz. This tone pitch is used as the
reference in transmission.
This means that the point, at which the TX pitch is equal to the RX pitch, becomes the zero-in point.
Yaesu FT DX1200 .
In addition, the FT DX 1200 has a CW tuning display feature.
By using this function, as the
pitch of the sound that is heard when receiving the CW signal becomes
closer to the programmed pitch, the lighted mark moves closer to the
center of the display.
When the center mark light turns RED, the signal is at the zero-in point.
CW APF (Audio Peak Filter).
In the CW mode, the included APF (Audio Peak Filter) function
has an audio peak at the signal frequency; this improves the S/N and
increases the readability of the CW signal.
The APF peak frequency can be finely aligned.
APF bands can be selected from
three steps according to preference, whereas peak frequencies can be
fine-tuned with the APF switch located on the front panel.
Yaesu FT DX1200 .Other CW Features.
• Dial step setting (for the CW mode only).
• CW SPOT Feature.
• CW Full Break-in.
• CW “VOX” Delay is adjustable.
• CW Mode reversal (USB or LSB).
• CW Keying available during SSB operation.
• Separate KEY Jacks on the front and rear panels.
• Electronic Keyer Included.
• Four-channel Message Memory (50 characters each); five memories available with FH-2 Keypad (optional).
• Automatic “Beacon” keyer mode.
Optional Fully-Automatic µ-Tuning Kit.
The u-Tuning Kit that was developed for the FT DX 9000, is
optionally available for use with the FT DX 1200. No other Amateur Radio
transceiver manufacturer offers a comparable device that may improve
your DXing performance in some challenging operating situations. A
large diameter with an adjustable ferrite magnetic material (Ni-Zn
ferrite) core, is combined, with a high resolution and high torque
stepping motor to automatically find the resonance point.
By inserting these tuning
units prior to the RF front end of the receiver, the IP3 points are
improved by around 4 dB. Three individual tuning units are available
covering frequencies from 1.8 MHz through 14 MHz. Many FT 950, FT
2000/D, FT DX 3000, FT DX 5000 and FT DX 9000 Yaesu customers have used
them and found them especially effective for use on the Lower Bands.
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