The Main Transceiver in the G4UJS Station (until 2008)
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YAESU
FT-1000D
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Flexible Receiver
Front-end With Broad Dynamic Range
Excellent receiver strong signal handling results from fourteen 5-pole main
channel front end bandpass filters (plus eleven optional sub channel bandpass
filters) followed by a switchable cascode dual JFET RF amplifier and
double-balanced mixer ring using four high-IDSS JFETs. According to band
conditions, you can choose between the preamp, direct mixer feed, or direct
feed with attenuation selectable in three 6-dB steps (to coincide with S-units).
Typical measured two-tone dynamic range is 108 dB (+32 dBm 3rd order IP)
with the RF amplifier off, and a noise floor of 138 dB with it on (50
kHz spacing at 14.260 MHz, 500 Hz BW, CW mode with no attenuation).
Simultaneous
Dual (Unlimited) Frequency Reception
Dual receiver front ends, IF strips and vfos allow simultaneous reception
and display of two different frequencies, even in different modes and with
different IF bandwidths. A single RX MIX control allows adjusting the relative
volume of each channel without having to twiddle multiple knobs. Unique to
the FT-1000D, each vfo has its own flywheel-weighted tuning knob, requiring
no confusing pushbutton selections to tune either frequency. The audio of
each vfo can be monitored mixed or split between each ear (with headphones
or external stereo amp). Also unlike any other radio, the eleven additional
filters in the BPF-1 Sub-Vfo Bandpass Filter option allow the two frequencies
to be up to 29.9 MHz apart (using a second antenna). For example, you can
monitor WWV on 10 MHz while simultaneously working SSB or CW on 28 MHz, and
freely tune either or both frequencies without pushing a single button. (Without
the BPF-1 option the main and sub vfos must share the same antenna and bandpass
filter). Note that with or without the BPF-1, a separate receiving antenna
can be connected and selected from the front panel important for serious
160m operations. The FT-1000Ds dual receive design allows frequency,
mode and filter diversity reception, plus antenna diversity reception with
the BPF-1 option.
QRM Rejection
Systems
A tunable (±1.2 kHz) notch filter in the 100 kHz 4th IF provides more
than 40 dB rejection of unwanted heterodynes or CW signals in all modes (except
FM). A sharp 4-pole tunable audio peak filter allows comfortable separation
of CW signals in crowded bands. IF shift provides fine adjustment of the
filter center frequency up to ±1.12 kHz on the IF bandpass, and
single-control IF width allows narrowing the actual IF passband without affecting
the center frequency. Separate wide and narrow pulse noise blanker circuits
can be selected independently for both "woodpecker" and switching transient
noise suppression.
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Optimized
Digital Communications Modes
Special provisions for RTTY/AMTOR and packet modes include an independent
built-in microprocessor to control AFSK generation for RTTY/AMTOR, providing
selectable 2125- or 1275- Hz Mark tones and 170-, 425-, and 850-Hz shifts,
with upper or lower shift selectable with RTTY mode button. The display can
show the Mark frequency, or be loaded with any desired offset. The 500-Hz
BW crystal filters can be selected for RTTY, AMTOR and 300 baud packet, and
IF offset can be selected from four standard settings matching most popular
TNCs, so that received signals are centered in the IF and the display shows
the actual center frequency of the two transmitted tones. Of course, any
non-standard tone pair/shift can also be accommodated with manual IF shift
and independent display offset adjustment (from the front panel). The PACKET
mode button selects LSB, or FM (with 1000-Hz shift). A separate RTTY terminal
unit and TNC can both be connected independently at the rear panel. FAX and
SSTV can also be used in SSB modes.
Flexible Mode
and IF Filter Selection
Each receiver IF (Main and Sub) has its own vfo on each of the ten bands,
and each of these vfos has two sub-band channels per band. Each of these
40 tunable vfo channels plus the 99 knob selectable tunable memories have
independently selectable modes and receiving IF filters. For the main receiver,
four crystal filters are provided as standard in the 8.2 MHz 2nd IF, and
two in the 455-kHz 3rd IF, providing bandwidths of 250 and 500 Hz, and 2.0,
2.4 and 6 kHz with four optional filters available for the main 455-kHz IF.
In addition, the sub receiver comes with a 2.4 kHz BW filter in the 7.68
MHz 2nd IF and another 2.4-kHz filter in the 455-kHz 3rd IF, with a 3rd IF
600-Hz narrow filter available as an option. Selecting filters does not affect
the receiving frequency, so for example, you can switch bandwidths from 2.4
kHz to 500 Hz during a CW QSO without retuning.
Up to 200
Watts Transmitter Output
While other transceivers offer maximum output of 100 or 150 watts, the FT-1000D
gives you clean, continuously adjustable output from 20 to a full 200 watts
(50 watts AM carrier), for that extra edge needed in pileups, or to easily
drive big linears to the legal limit. The clean DDS-derived local signals
combined with 30-volt Vcc to the (MRF422) final transistors results in a
typical transmitter 3rd-order IMD of 36 dB (at 150W PEP). An extended
transmit duty cycle of 30 minutes cool, quiet keydown power (@ 100W) results
from employing a 10-inch wide squirrel cage blower (instead of the usual
fan) and internal interlaced heat sinks. A separate RF PWR (ALC threshold)
control allows full adjustment of power output in all modes, and a transmitter
RF (not IF) monitor lets you hear just what youre sending to the antenna.
The built-in quick response antenna tuner matches SWRs up to 3:1 on the amateur
bands, and includes 39 tuner-setting memories for instant recall of previously
stored settings. The antenna tuner controls are also accessible by external
computer via the CAT System.
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Special Features
for CW Operation
Along with the wide array of IF filters and the tunable audio peak filter,
the FT-1000D provides selectable bfo offsets of 400-, 500-, 600-, and 700-Hz
pitch, with matching CW spotting oscillator (to zero-beat your transmitter
while receiving) and transmit sidetone. A novel PLL-controlled visual spotting
indicator is also provided to facilitate spotting. In addition to front panel
speed control, the built-in electronic squeeze keyer includes 15-step weight
selection from 1:3 to 1:4.5 dot/dash ratios. Key jacks are provided on both
front and rear panels. The CW carrier is injected at the USB side of the
IF center frequency, so you can switch between CW and USB without retuning.
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Enhanced
Integration = Simplified Control
To ensure simple operator control, an 8-bit HD64180 master CPU works in concert
with five supporting microprocessors to manage the frequency synthesis and
complex functions of the FT-1000D. "Shifted" key functions have been eliminated,
except for numeric frequency entry on the keypad, which otherwise provides
one-touch instant band selection. Separate buttons are provided for all other
significant functions including vfo, mode, and IF and audio filter selection.
A detented rotary selector is used for the 99 memories, which can be
independently tuned or have their mode or IF filter selection changed directly,
just like a vfo. The Clarifier (receive/transmit offset) can be adjusted
and is displayed and stored independently of the operating frequency, being
added to the main display when either the transmit or receive clarifier is
activated. Clearing either clarifier retains the offset on its separate display
for instant reuse. The CAT (Computer-Aided Transceiver) System in the FT-1000D
allows control of major functions from an external personal computer. The
FT-1000D is supported by most DX and contest logging programs.
SPECIFICATIONS
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GENERAL | 0 |
RX Frequency
Range:
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100 kHz ~ 30 MHz |
TX Frequency
ranges:
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160 ~ 10m amateur bands only |
Freq. Accuracy:
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<±5 ppm (except FM <±100 Hz) |
Freq.
Stability:
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<±2 ppm (0 °C ~ 50°C) (except FM <±200 Hz) |
<±0.5 ppm (-10°C ~ 60°C) w/TCXO-1 (FM <±150 Hz 0°C ~ 50°C) | |
Emission Modes:
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LSB, USB (J3E), CW (A1A), FSK (J1D, J2D), AM (A3E), FM (F3E) |
Basic Frequency
Steps:
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10 Hz for J3E, A1A and J1D |
100 Hz for AM and FMA3E, F3E and J2D | |
Antenna Impedance:
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16.5 to 150 Ohm, 50 Ohm nominal |
Supply Voltage:
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100, 110, 117, 200, 220 or 234 VAC, 50/60 Hz |
Power Consumption
(approx.):
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95 VA Receive, 1050 VA for 200 watts transmit |
Dimensions (WHD):
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420 x 150 x 375 mm |
Weight
(approx.):
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51 lbs. (25.5 kg.) |
TRANSMITTER
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0 |
Power Output:
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adjustable up to 200 watts (50 watts AM Carrier) |
Duty Cycle:
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100% @ 100 watts, 50% @ 200 watts (FM & RTTY, 3-minute TX) |
Modulation Types:
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SSB: Balanced, Filtered Carrier |
AM: Low level (early stage) | |
FM: Variable Reactance | |
FSK: Audio Frequency Shift Keying | |
Maximum FM Deviation:
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±2.5 kHz |
FSK Shift
Frequencies:
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170, 425 and 850 Hz |
Packet Shift
Frequencies:
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200, 1000 Hz |
Harmonic radiation:
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at least 50dB below peak output |
SSB carrier
suppression:
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at least 40dB below peak output |
Undesired sideband
suppression:
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at least 50dB below peak output |
Audio response
(SSB):
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not more than -6dB from 400 to 2800 Hz |
3rd-order IMD:
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-36 dB @ 150 watts PEP, -31 dB @ 200 watts PEP, or better |
Microphone impedance:
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500 to 600 Ohm |
RECEIVER
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0 |
Circuit type:
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quad-conversion superheterodyne (triple conversion for FM) |
Intermediate
Frequencies:
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73.62 and 8.215 MHz and 455 and 100 kHz |
Sensitivity (For 10 dB S/N): | ||||
Frequency | 100 ~ 250 kHz | 250 ~ 500 kHz | 0.5 ~ 1.8 MHz | 1.8 ~ 30 MHz |
Mode | ||||
SSB, CW (2.4 kHz) | 1.25 uV | 1 uV | 2 uV | 0.25 uV |
AM (6 kHz) | 10 uV | 8 uV | 16 uV | 1 uV |
29 MHz FM (12 dB SINAD) | - | - | - | 0.5 uV |
Selectivity (-6 / -60 dB): | |||
Button | Modes | Min -6dB BW | Max -60 dB BW |
2.4 kHz | all except FM | 2.2 kHz | 3.8 kHz |
2.0 kHz | all exc. AM, FM | 1.8 kHz | 3.6 kHz |
500 Hz | CW, RTTY, Packet | 500 Hz | 1.2 kHz |
250 Hz | CW, RTTY | 240 Hz | 700 Hz |
- | AM (Wide) | 6 kHz | 14 kHz |
Sensitivity (For 10 dB S/N): | ||||
Frequency | 100 ~ 250 kHz | 250 ~ 500 kHz | 0.5 ~ 1.8 MHz | 1.8 ~ 30 MHz |
Mode | ||||
SSB, CW (2.4 kHz) | 1.25 uV | 1 uV | 2 uV | 0.25 uV |
AM (6 kHz) | 10 uV | 8 uV | 16 uV | 1 uV |
29 MHz FM (12 dB SINAD) | - | - | - | 0.5 uV |
Dynamic Range:
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108 dB (@ 50 kHz, 500 Hz BW, RF amp off) | |
Squelch sensitivity:
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1.8 ~ 30 MHz: (CW, SSB, AM): <2.0uV | |
28 ~ 30 MHz: (FM): | <0.32uV | |
IF rejection
(1.8 ~ 30 MHz):
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80 dB or better (Main RX) | |
Image rejection:
(1.8 ~ 30 MHz):
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80 dB or better (Main) | |
IF shift range:
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±1.12 kHz | |
Max audio output:
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2W into 4 Ohms with <10% THD | |
Audio output
impedance:
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4 to 8 Ohm |