The high tech receiver front-end design, adopted from
the FT-1000D/FT-1000MP legacies, allows you to compete
on today's crowded bands! Utilising an up-conversion
technique, the four JFET doubly-balanced first mixer
yields wide dynamic range and low noise figure.
Following the first mixer, a four-pole monolithic
crystal "roofing" filter at 68.985 MHz
protects the receiver stages to follow. This front-end
architecture results in excellent image rejection
characteristics for the receiver. |
|
Frequency optimised front-end preamps provide the best
noise figure for your operating circumstances! For
frequencies above 24.5 MHz, the Dual-Gate MOS FET RF
preamplifier provides the highest gain and lowest system
noise figure, important when you are searching for those
weak 28 or 50 MHz signals. For the lower bands, where
extremely low noise figure my be less important than
immunity from intermodulation and blocking due to strong
signals, choose the lower gain JFET preamp. The
front-end amplifier choice you prefer will be maintained
in the VFO and/or memory registers. |
|
Front-end bandpass filters protect the receiver circuits
from strong out-of-band signals! Eleven low-loss
bandpass filters provide excellent immunity from
overload and 2nd-order intermodulation from stations
outside the currently selected band. The bandpass
filters for 7, 14, 21 and 50 MHz exhibit high-Q
characteristics which provide additional protection from
signals relatively near the current band. Additionally,
an input high-pass filter protects the receiver from
strong AM broadcast signals (below 160 meters), and an
input-low pass filter protects the receiver from
television transmitter and other high-level VHF/UHF
signals. |
|
All-band (160-6 meters) Automatic Antenna Tuner
controlled by a 16-bit CPU provides quick frequency
change plus protection for receiver circuitry! Up to 100
channels of antenna system tuning data may be stored
automatically while you are operating when you return to
a particular frequency or memory channel the Automatic
Antenna Tuner will preset itself to the last setting in
memory for that frequency. Immunity from 2nd-order
intermodulation is enchanced by the capability to use
the antenna tuner both on receive as well as transmit.
This, the tuner acts as a band-pass filter to reject
out-of-band signals which could cause intermodulation. |
|
High-Technology custom Direct Digital Synthesiser (DDS)
yields clean local oscillator signals and fast lock
time. The DDS circuitry produces very pure local
oscillator carrier signals, contributing to the FT-920's
high carrier-to-Noise (C/N) ratio. The fast lock time
yields outstanding digital mode and QSK CW results. |
|
New design 100 Watt MOS FET amplifier provides full
power from 1.8 through 54 MHz! Utilising rugged MRF255
FET's in a push-pull configuration, the FT-920's final
amplifier stage produces 100 Watts of clean output
power. The FT-920 is built into an aluminium diecast
unibody chassis, which efficiently dissipates heat in
conjunction with the amplifiers low-noise cooling fan. |
|
The multi-function tuning dials provide easy setup for
split-frequency operating situations! When seconds count,
you'll appreciate the ease of tuning with the two large
tuning knobs in combination with the LED-illuminated VFO
selector switches. The Sub VFO dial may also be used for
Clarifier (RIT/XIT) tuning or memory channel selection. |
| Extremely
fine tuning steps, plus Yaesu's exclusive Shuttle Jog™
tuning ring, yield the smoothness of analogue VFO's with
the efficiency of digital technology. Variable tuning
steps of 1Hz, 10Hz, or 100Hz are provided on SSB, CW and
Digital mode (10/100/1000Hz on AM/FM), allowing precise
zeroing in on weak stations. And Yaesu's Shuttle Jog™
allows you to move quickly up or down the band with a
simple twist of the jog dial. When using tuning steps of
1Hz, precise tuning is made possible by the Enhanced
Tuning Scale, which shows the precise amount of offset
from the displayed frequency (which has a resolution of
10Hz). |
| Keyboard
frequency entry, plus one-touch selection of amateur
bands, allow you to navigate quickly throughout the
operating range of the transceiver! Utilising a twin
band-stacking VFO selection technique, the FT-920
provides two VFO registers for each amateur band. Thus,
you can store "favourite frequencies" such as
14.195 MHz (SSB) and 14.025 (CW) on each band, with
mode, bandwidth, antenna selection, and antenna tuner
settings all being maintained in the separate VFO
registers. Pressing the [ENT] key activates the direct
frequency entry mode, which allows you simply to key in
the desired frequency for instant QSY to that spot.
Continuous coverage throughout the HF spectrum is
provided for general short-wave listening, and the
extended receive coverage between 48MHz and 50MHz allows
you to spot upcoming ionospheric openings as the Maximum
Usable Frequency approaches the 6-meter band. |
| New
Design Digital Signal Processing (DSP) System features
Industry-leading 33.3 MIPS (Million Instructions Per
Second) Processing Speed for Leading-Edge Digital
Operating Enhancement! |
|
| Two-Parameter
Noise Reduction System improves signal-to-noise ratio! |
| Building
on the success of the FT 1000MP's EDSP system, Yaesu's
engineers embarked on an ambitious project to optimise
two parameters in DSP noise reduction
technology-response time and feedback coefficient to
provide the best DSP-based noise reduction system in the
industry. After thousands of hours of on the air
measurements and circuit evaluations, the FT-920's NR (Noise
Reduction) feature includes a total of 32 steps of
adjustment, whereby these two parameters are modified
and re-combined so as to provide the best degree of
noise suppression consistent with low distortion of the
desired signal. This adaptive filter actually "form
fits" itself around the incoming signal, while
rejecting random noise, providing you with the best
chance ever of pulling out those weak ones. |
| Dual-control
DSP Passband Tuning combines with IF Shift for
Outstanding Interference Rejection |
| Once
the IF crystal filters have established the operating
bandwidth, and the IF SHIFT control has determined the
best center frequency of the passband, the DSP Dual
Passband Tuning controls are used to provide a very
tight shape factor and lower overall noise level The DSP
Low Pass Filter provides 22 steps of adjustment (over
the range 1 0~4 5kHz on SSB, 500Hz~2.25kHz on CW) of the
upper-frequency limit, while the High Pass Filter
provides 42 steps of adjustment (100Hz~1 9kHz on SSB,
50Hz~950Hz on CW) of the low-frequency cutoff The
ergonomically designed passband tuning controls include
tabs which prevent confusing overlap, and the improved
interference reduction provided by this feature lets you
hear only that rare DX! |
| Automatic
Seeking DSP Notch Filter Cuts out annoying carriers or
beat notes! |
| An
additional and highly-beneficial feature of the DSP
system is the automatic, seeking Notch filter This
advanced circuit detects the presence of one or more
carriers in the (voice mode) passband, then generates a
very narrow notching action to eliminate the offending
tone. The notch depth is in excess of 35 dB. |
| Contest-ready
High-quality Digital Voice Recorder! |
| Long
hours of SSB contest operation can quickly weaken an
operators voice But unique in this price class of
transceivers is the FT-920's DSP-based Digital Voice
Recorder (DVR). On transmit the DVR can store as many as
six repetitive "CQ Contest" type messages with
a total recording time of 44 Seconds (partitioned
into messages of maximum lengths of 16 seconds (one
message), 8 seconds (two messages). or 4 seconds (three
messages) On receive. use the DVR to record and playback
interesting or important messages for later reference
The high sampling rate for the DVR brings you
exceptionally clear voice signal quality. with simple
front-panel access to the recording and playback keys. |
| Exceptional
Transmit Audio and Talk Power via DSP Mic Equalisation
and Digital Speech Processor! |
| The
power of DSP based audio pattern synthesis is yours with
the FT-920's Microphone Equalisation feature via the
Menu system. the operator may choose, from among four
distinct response contours, the one which best matches
his or her voice. The transceiver then can focus all
available transmitter power into the audio spectrum
which you, yourself are generating, so as to improve
your signal on the other end of the communications
circuit. In addition to the Mic Equalisation feature,
the FT-920 sports an exciting new Digital Speech
Processor. which increases your talk power by a
high-technology digital compression technique, which
boosts the average power output from your transceiver
with very low distortion. The Digital Speech Processor
and DSP Mic Equalisation combine to give you the most
comprehensive array of transmit signal-enhancing toots
available. |
| DSP-based
Transmit Voice Monitor! |
| For
easy monitoring and adjustment of your speech quality
characteristics (important when adjusting the Digital
Speech Processor and/or Mic Equalisation), the DSP
Transmit Monitor circuit includes a front panel level
control for setting a comfortable monitoring level. |
| Fast-acting
DSP VOX Circuitry! |
| The
FT-920's VOX (Voice-Operated T/R Control) utilises the
high speed of the DSP system to monitor the microphone
input for activation of the transmitter Much faster than
analogue VOX systems, the FT-920's VOX provides
lightning fast changeover from receive to transmit,
important in contest applications. |
| Convenience
during FM Operation provided via DSP Tone Systems! |
| During
FM repeater operation on 10 and/or 6 meters, CTCSS
Encoding and Decoding tone systems are provided via the
DSP circuits. And when you need to generate DTMF tones
on FM, the front panel keypad doubles as DTMF generation
for repeater control applications. |
|
|
Dual watch system allow you to monitor two bands while
looking for band openings! Set up the Dual Watch system,
for example, to check both 10-meter and 6-meter calling
frequencies when the band seems "dead". The
interval for checking the Sub VFO frequency may be user
selected, via menu, to any value between 3 and 15
seconds (in one second increments). |
|
Customise your FT-920's features using the extensive
Menu system! A total of 73 "Set and Forget"
aspects of transceiver performance may be adjusted via
the menu, allowing you to set up the FT-920 just the way
you want it! Use the Menu to place that personal touch
on such parameters as keyer weighting, tuning rate, and
microphone equalisation. You can even set up different
maximum power output levels for the two antenna ports. |
|
Flexible 127-channel memory system with Alpha-numeric
labels! Besides the 99 "regular" memory
channels, the FT-920 provides 5 "QMB" (Quick
Memory Bank) memories, ten split-frequency memories (repeater
splits can be accommodated on the "regular"
memory channels), one "Call" channel for each
amateur band, and one set of band-limit channels. All
memories retain frequency, bandwidth, mode, and antenna
selection data, and all memories accept the QMB channels
allow you to append and Alpha-numeric name or label (shown
in the Sub VFO display area)--great for short-wave
listening! |
|
Versatile Scanning functions allow you to keep a close
watch on favourite frequencies or quiet bands! Choose
between VFO-mode scanning, QMB channel scanning, Memory
channel scanning, or pre-programmed limit band scanning.
Memory channels such as WWV or local AM broadcast
stations can also be tagged to be skipped during memory
channel scanning, if desired. |
|
Yaesu's renown Omni-Glow™ LCD display provides a
wealth of information about transceiver operating
status. Utilising a specially-engineered wide-angle
viewing lens, the Omni-Glow™ display's reddish tint
yields high contrast, exquisite detail and sharpness of
display icons, plus very low eye fatigue during long
operating sessions. |
|
Multi-function digital
metering includes a "peakhold" feature for
easy, precise transceiver level measurements. The
digital meter scales bring you indication of received
signal strength, transmitter output power, ALC level,
SWR as measured at the transmitter side, input DC
voltage, PA current, and speech processor compression
level. And the "peak-hold" function provides a
visual "dot" to indicate the maximum level
encountered on any meter scale, allowing easy
interpretation of fast-moving indications on the
display. |
|
Enhanced Tuning Scale provides the owner unique visual
operating aids. |
| Digital
Filter Relative Bandwidth - The Enhanced Tuning
Scale's most popular display option is the indication of
the relative bandwidth of the DSP's High-Cut and Low-Cut
filters. Without taking your eyes away from the main
frequency display area, you'll quickly be able to know
the approximate roll-off characteristics of the DSP
filters. |
| Clarifier
Offset - The direction and relative magnitude
of the Clarifier's offset may be displayed using this
option for the Enhanced Tuning Scale. |
| CW
Tuning Meter - For precise zeroing in on the
center frequency of the CW passband, as programmed by
the PITCH control, the Enhanced Tuning Scale provides a
double-arrow (tu) meter to aid in precise frequency
adjustment. This can be particularly helpful when using
computer-based CW decoding terminal units. |
| FM
Center Tuning Meter - During FM operation, the
Enhanced Tuning Scle may be used as a discriminator
center meter for precise receiver tuning. |
Informative Display
Multi-Function Panel selections:
- Clarifier frequency
offset and direction
- CW Pitch frequency
- Repeater Shift
magnitude and direction
|
| Receiver
Accessories |
|
IF Shift - The popular IF
Shift feature allows you to roll off interference above
or below the station you are listening to. In
conjunction with the DSP's High-Cut and Low-Cut filters,
you are equipped with powerful interference-rejection
tools for easier copy of marginal signals on today's
crowded bands. |
|
IF Impulse Noise Blanker
(NB) - For reduction of impulse noise such as that
generated by automotive ignition systems, the IF Noise
Blanker is an important tool for improving
signal-to-noise ratio. A NB Level control is provided to
allow the operator to optimise the Noise Blanker for the
noise conditions encountered. |
|
AUTO AGC - The receiver's
Automatic Gain Control (AGC) recovery time constant may
be programmed, via Menu, to automatic default values
which depend on the operating mode. The AGC time
constant may also be set manually from the front panel,
if desired. |
| Convenience
Features for Interconnection with Accessories |
|
Dual Antenna Jack plus
receive only antenna jack - The TX/RX SO-239 (type
"M") coaxial jacks are provided, eliminating
the need for an external coax switch in many stations.
Or you may dedicate one jack for low-power operation
with a VHF/UHF transverter, if you like. The
receive-only phono ("RCA") jack may be used
for a low-noise receiving antenna such as a loop or
Beverage, or it may be used in conjunction with a
special receiving filter, preamplifier, or a VHF/UHF
receive converter. |
|
Data jack for Connection to
a TNC or Terminal Unit - Interfacing to digital-mode
terminals is easy, thanks to the rear-panel DATA DIN
connector. This jack accommodates either FSK or AFSK
inputs from a TNC, and provides PTT (Push To Talk),
fixed-level audio output, and squelch status
interconnections. The AFSK input is isolated from the
microphone input, so you'll never need to worry about
audio cross-talk during digital operation. |
|
Computer Control Interface
Jack - For connection to a personal computer's serial
data port, the FT-920 includes a convenient female DB-9
connector. Thanks for the built-in RS-232C level
converter, no external interface box is required. |
|
AF OUT Jack - For connection
to a tape recorder, data logger, or weatherfax decoder,
the convenient AT OUT RCA connector on the rear panel
provides fixed-level audio output, unaffected by the
setting of the front panel's AF GAIN control. |
| Operating
Enhancements |
|
FM Repeater Features
- Independently-optimised repeater operating
features are provided for the 29MHz and 50Mhz bands.
CTCSS tone systems, repeater shifts, and transmitter
deviation are completely separated between the two
bands, reflecting the different regulatory and
operational requirements on the 10 and 6 meter bands. |
|
Linear Amplifier
Tuning Feature - A special feature allows a
carrier to be generated at a preset power level,
determined via the Menu system, for convenience when
tuning up external linear amplifier. Interfacing to an
amplifier is simple too, thanks to the provision of both
open-collector transistor switching, as well as a
mechanical relay, to accommodate mode all amplifier
relay coil voltages. |
|
All-Mode RF Power
Control - For exact power output adjustments,
important in many operating situations (especially with
linear amplifiers), the FT-920's front panel RF PWR
control is operational in all operating modes. |
|
Full Break-in and build-in
Electronic Keyer - Thanks to the very quick switching
time of the DDS system, the FT-920's QSK (full break-in)
system provides outstanding waveform shape even at high
speeds. The built-in electronic keyer circuit features
keying speeds of 6 ~ 60wpm, plus independent dot:space
and dash:space ration control. |
|
|
CW Reverse -
Depending on the band in use, interference, or other
factors, you may wish to use either USB-side or LSB-side
injection for CW operation. The FT-920's CW-Reverse
feature solves this problem! For example, when asking a
75-meter SSB station to switch to CW to build your CW
DXCC country total, the FT-920 eliminates the need to
tune around the band looking for the other station: just
select "CD-LSB" and you'll be ready for action/ |
|
CW SPOT -
For precise alignment of your transmitted signal's
frequency to that of the incoming station, use the CW
SPOT feature. Pressing the SPOT key activates and
audible tone which corresponds to the exact pitch of
your signal when you transmit. The pitch, of course,
tracks according to the setting of the front panel's
PITCH control, and is very useful in DX pile-up
situations. |
|
CW TUNING METER -
An important feature of the Enhanced Tuning Scale is the
CW Tuning Meter, which provides a visual indication of
the pitch of the incoming signal as compared to your
transmitted frequency (as established by the PITCH
control). |
|
CW PITCH/Sidetone -
Unlike on many rigs, the CW Sidetone on the FT- 920 can
be used for precise zero beating with other stations (as
described above in the "CW SPOT" discussion).
Rotating the PITCH control allows adjustment of the
offset transmitter frequency (and the corresponding
center of the receiver's passband) over the range 300 ~
1050 Hz. So if you like to listen to a rather low CW
tone, you can still zero beat with ease when using the
FT-920! |
|
Contest
Message-Memory Keyer - The built-in message
memory keyer, with recording / playback controls on the
front panel of the transceiver, allows you to store and
play back repetitive "CQ," "QRZ," or
contest number messages. Four messages of up to 50
characters each may be stored, and the contest number
automatically increments after each QSO. Moreover, the
Menu system allows you to truncate digits in the contest
number, if you like (e.g. "T" for
"0," "A" for "1 ,"
"N" for "9," etc). |
|
lndependent CW KEY
Jacks on Front and Rear Panels - Depending on
how you choose to configure your station, you may, for
example, connect a keyer paddle to one jack (for use of
the FT-920'S built-in electronic keyer) and a two-wire
keying line from your computer (for use with a contest
software's keying interface). The "straight key"
jack also provides PTT access via the ring contact on
the key plug, for use if your computer or external keyer
supports PTT control. |
|
