The FT-857, the world’s smallest HF/VHF/UHF Mobile transceiver, provides base
station performance from an ultra-compact package that’s ideal for mobile or
external battery portable work. Wide frequency coverage, outstanding receiver
performance, and the convenience of remote-head operation* make the FT-857 the
expert’s choice for high-performance mobile operation!
*Optional YSK-857 Separation Kit required
ULTRA COMPACT DESIGN
Measuring just 6.1" x 2" x 9.2" (155 x 52 x 233
the
mm),
HF/VHF/UHF
transceiver! Its rugged
FT-857 is the world's smallest full-power
multimode
case
design is a masterpiece of
ergonomic design, with oftenused switches and knobs
conveniently positioned for
RUGGED, HIGH-OUTPUT TRANSMITTER DESIGN
Borrowing extensively from the FT-897
transmitter design, the FT-857's rugged power
amplifier section utilizes Bipolar Transistor
devices, providing low noise, low distortion, and
high reliability. On HF and 6 meters, you get 100
Watts of
you get 50 Watts
clean power output, while on 2 meters
out, and 20 Watts on 70 cm.
Reliability is assured
thanks
to the
extensive
system, featuring a
thermostatically-controlled
TX POWER OUTPUT (SSB,CW,FM)
HF / 6 m 2 m 70 cm
5W ~ 100W 5W ~ 50W 2W ~ 20W
HIGH-PERFORMANCE RECEIVER DESIGN
Building on the acclaimed performance of the
FT-1000D, Mark-V
engineers have crafted the FT-857’s front end
for a very low noise floor, along with wide
dynamic range. Utilizing an up-conversion
architecture for HF with a first IF of 68.33 MHz,
the FT-857 features a
superheterodyne system (single
WFM), with the 2nd IF at 455 kHz. Extensive
bandpass filtering in the front end, along with
careful device selection and gain distribution,
yield a receiver system ready for the strongsignal challenges of
today's crowded
On VHF and
low-noise
preamplifier is followed by
an active DBM mixer,
yielding
figure required for weak-
Providing transmitter coverage of the HF, 50
MHz, 144 MHz, and 430 MHz Amateur bands,
the FT-857 also includes receive coverage on
100 kHz to 56 MHz, 76 to 108 MHz, 118-164 MHz,
and 420-470 MHz. Enjoy the excitement of
public safety monitoring, along with weather
broadcasts, AM and FM broadcasts, aviation
communications, as well as the action on the
Ham bands!
ENHANCED TRANSCEIVER PERFORMANCE
THROUGH DIGITAL SIGNAL PROCESSING
For superior interference rejection and
transmitter "talk power," the FT-857's DSP
circuitry enhances both sides of the
communications
circuit. The FTDSP Unit features a
24-bit high-tech D/A chip
DSP BANDPASS FILTER : Separate DSP
•
Bandpass
Filters for Voice and CW augment the analog
filters
for enhanced interference rejection. For Voice
modes, you get 16 High-Pass Filter cutoff
frequency
selections, for a
CW, you may choose
Hz, or a razor-sharp 60 Hz.
DSP AUTO-NOTCH FILTER
•
interference caused by annoying carriers within
the audio
provides a significant
interference level. If multiple carriers are
present, the DSP will detect and notch all the
carriers present.
DSP NOISE REDUCTION :
•
Noise
Reduction filter of the FT-857 utilizes as many
as 16 noisewide variety
introducing appreciable distortion on the
desired signal. Operator fatigue is reduced, and
signal-to-noise ratio is significantly enhanced.
DSP MICROPHONE EQUALIZER : To match the FT-
•
857's
TX audio response to the waveform
produced by
General
use, the DSP system
Frequency Range:
Equalizer circuit. The result is increased "talk
Receive:
power" as extraneous frequencies are
Transmit : 160 - 6 Meters, 2 Meters,
suppressed, allowing all available
70 Centimeters (Amateur bands only)
concentrated into your voice's pattern.
Emission Modes : A1 (CW), A3 (AM), A3J (LSB/USB), F3 (FM),
F1 (9600 bps packet), F2 (1200 bps packet)
Synthesizer Steps (Min.
Antenna Impedance
Operating Temp. Range
Frequency Stability: ±4 ppm from 1 min. to 60 min after power on.
@25˚ C: 1 ppm/hour
±0.5 ppm/1 hour @25˚ C, after warmup
(with optional TCXO-9)
Supply Voltage: Normal: 13.8 VDC ±15 %, Negative Ground
Current Consumption
Receive: 1 A
Transmit: 22 A
Case Size (W x H x D)
Weight (Approx.): 4.6 lb. (2.1 kg)
cooling
FT-1000MP, and FT-897, Yaesu's
double-conversion
conversion on
bands!
UHF the very-
MOS FET
the low noise
WIDE FREQUENCY COVERAGE
(Optional DSP-2 Unit Required)
857’s
for signal processing.
selections, and 32 Low-Pass Filter
total of 512 combinations. And for
bandwidths of 240 Hz, 120
: To reduce
passband, the DSP Auto-Notch
reduction in the
The very effective
reduction algorithms, for use in a
of noise environments, without
your voice and the microphone in
includes a four-position Mic
0.1-56 MHz, 76-108 MHz, 118-164 MHz, 420-470 MHz
power to be
5167.5 kHz (Alaska Emergency Frequency/USA Version)
): 10 Hz (CW/SSB), 100 Hz (AM/FM/WFM)
: 50 Ohms, Unbalanced
: +14˚ F to +140˚ F (–10˚ C to +60˚ C)
: Squelched: 600 mA (Approx.)
: 6.1" x 2.0" x 9.2" (155 x 52 x 233 mm)
The quiet, fast-acting local oscillator system of
the FT-857 borrows extensively from the FT-847
and FT-897, using a Direct Digital Synthesizer
(DDS) to achieve fast lock times and silkysmooth tuning in
excellent carrier-to-noise
spurious-free dynamic range in a crowded
band, and the smooth tuning leaves you with
UNMATCHED EASE OF ACCESS TO FEATURES
Despite its compact size, the FT-857 is without peer in
ease of access to the features and functions you need
the most!
BIG-RADIO TUNING DIAL AND OUTSTANDING
•
ERGONOMICS : Ease of operation of the FT-857
is
enhanced by the large diameter 1.7” (Ø43
mm) Main Tuning Dial (10 Hz steps minimum),
similar in size to the tuning knob of many base
station rigs.
more, the SELECT knob
allows "channelized"
tuning in minimum steps
of 1 kHz on SSB/CW, or
5 kHz on FM, for quick
and easy tuning around
the band. All important
keys are strategically placed around the front
panel, for quick access.
EASY-TO-USE “SCROLLING FRONT PANEL” KEYS :
•
The compactness of the FT-857 is made possible
by the easy-to-use "multi-function" keys, which
allow adjustment of a number of transceiver
operating functions during operation. Pressing
the [FUNC] key allows selection of the operating
function row, using the Selector knob, and you
may then
press
[A], [B], or
[C] key, as
needed, to
change the
Multi Function Keys
MFa
MFb
MFc
MFd
MFe*
MFe
MFf
MFg
MFh
MFi
MFj
MFk
MFl
MFm
MFn
MFo
MFp
MFq
*This row of functions is user-programmable (defaults shown).
Transmitter
RF Power Output (@13.8 V DC)
160- 6 Meters: 100 W 25 W
2 Meters: 50 W 12.5 W
70 Centimeters: 20 W 5 W
Modulation Types: SSB: Balanced Modulator,
AM: Early Stage (Low Level),
FM: Variable Reactance
FM Maximum Deviation: ±5 kHz (FM-N: ±2.5 kHz)
Spurious Radiation: –50 dB (1.8-29.7 MHz)
–60 dB (50/144/430 MHz)
Carrier Suppression: >40 dB
Opp. Sideband Suppression
SSB Frequency Response
Microphone Impedance: 200-10k Ohms (Nominal: 600 Ohms)
Receiver
Circuit Type: Double-Conversion Superheterodyne
(SSB/CW/AM/FM)
Superheterodyne (WFM)
Intermediate Frequencies: 1st: 68.33 MHz (SSB/CW/AM/FM); 10.7 MHz (WFM)
2nd: 455 kHz
HIGH-PERFORMANCE PLL DESIGN
steps as fine as 10 Hz. The
ratio helps preserve
What’s
the
A key B key
A / B
(VFO A/B Selection)
MW
(Write to Memory)
STO
(Quick Memory Store)
RPT
(Repeater On/Off)
TON
(CTCSS/DCS On/Off)
ENC
(Split Tone Encode)
ARTS
(ARTS™ On/Off)
SCN
(Scan Start)
SCOP
(Spectrum Scope)
MTR
(Meter Mode)
SPOT
(CW Spot)
TUNE
(ATU/ATAS On/Off)
NB
(Noise Blanker On/Off)
IPO
(RX Preamp On/Off)
CFIL
(RX Normal Fltr.)
PLY1
(Keyer Mem. 1)
DNR
(DSP Noise Fltr.)
MONI*
(SQL Disable)
SPECIFICATIONS
: SSB/CW/FM AM Carrier
: >50 dB
: 400 Hz-2600 Hz (–6 dB)
A=B
(Equalize VFOs A/B)
SKIP
(Skip during Scan)
RCL
(Quick Memory Recall)
REV
(RPT Shift Reverse)
—
DEC
(Split Tone Decode)
SRCH
(Smart Search™ On/Off)
PRI
(Priority Ch. Watch)
WID
(Scope Bandwidth)
PWR
(Meter Mode)
BK
(Break-in On/Off)
DOWN
(ATAS Down)
AGC
(AGC On/Off)
ATT
(RX Attenuator On/Off)
N/A
(Optional Fltr. 1)
PLY2
(Keyer Mem. 2)
DNF
(DSP Notch Fltr.)
QSPL*
(Quick Split)
(Split Operation)
(Memory Name Tag)
(Speech Processor On/Off)
(Tone/Code Selection)
(Tone/Code Search)
(Band-Limit Scan)
(CW Keyer On/Off)
(Optional Fltr. 2)
(Keyer Mem. 3)
(1750 Hz Tone)
C key
SPL
TAG
PROC
VOX
(VOX On/Off)
TDCH
TDCH
PMS
DW
(Dual Watch)
STEP
(Scope Steps)
DISP
(Display Size)
KYR
UP
(ATAS Up)
AUTO
(AGC Mode)
NAR
(Narrow Dev.)
N/A
PLY3
DBF
(DSP BPF)
ATC*
Actual Size
FT-857
ADVANCED FEATURES FOR ACTIVE DXers
IF Shift : Use the IF SHIFT feature to vary the
•
center frequency of the IF passband, so as to
eliminate interference above or below the
current operating frequency.
IF Noise Blanker :
•
environment, the FT-857 includes a highlyeffective IF Noise Blanker specifically designed
for suppression of ignition and other pulse-type
noises. The Noise Blanker’s threshold is
adjustable via the Menu.
Intercept Point Optimization (IPO) : For reception on
•
the lower HF bands, where low Noise Figure is
not required, the IPO feature causes the RF
preamplifier to be bypassed, allowing direct
signal input to the first mixer. An input
attenuator is also provided, for very noisy
conditions.
Adjustable AGC : The Automatic Gain Control
•
(AGC)
circuitry of the FT-857's receiver may be
adjusted, by the operator, for Slow or Fast
recovery times. A convenient "Auto" feature
programs
voice modes. And the AGC may also be turned
off, if desired, allowing manual gain control from
the front panel.
Clarifier (R.I.T.) :
•
to follow drifting signals, the Clarifier control
provides up to ±9.99 kHz of adjustment of the
receiver’s frequency, without changing the
transmit frequency. For wider–split pileups, the
"Split" mode allows you to use VFO-A and VFOB separately, too.
RF Gain Control : For noise reduction and/or
•
variation of the AGC system threshold, the
Menu allows the front panel’s "Squelch"
control to operate as an "RF Gain" control.
VOX : For hands-free Voice operation, the VOX
•
The FT-857 is without peer in its array of mostasked-for features for the CW expert!
Built-In Electronic Keyer : The FT-857's built-in
•
Electronic Keyer includes a weight control, as
well as Menu capability to reverse the "Dot"
and "Dash" contacts on your connector.
CW Message Memory with Beacon Mode : For
•
repetitive "CQ TEST" and contest exchange
messages,
memory capability. The "Beacon" mode may be
used to send a repetitive message out
continuously for up to four hours, ideal for 6meter use during DX-peditions.
CW Pitch/Sidetone Control
•
allows the transmitted signal to be offset
400/500/ 600/700/800 Hz from "zero beat" with the
receive frequency. This adjustment
simultaneously varies
RX passband (including the
the CW Sidetone pitch. The
serves as a "Spot" signal during tuning.
CW Trainer : A popular feature of the FT-857 is
•
the CW Trainer, which will send five-character
letters
and/or numbers via the speaker, so you
For operation on a wide variety of digital modes,
including 1200/9600 bps FM packet, RTTY, SSTV,
or PSK31, the rear-panel 6-pin mini-DIN
connector provides easy to Data I/O lines, plus
PTT and Ground. For PSK-31 and other AFSK
modes, the
selectable, along with
Sensitivity: SSB/CW AM FM
100 kHz-1.8 MHz — 32 µV —
1.8 MHz-28 MHz 0.2 µV 2 µV —
28 MHz-30 MHz 0.2 µV 2 µV 0.5 µV
50 MHz-54 MHz 0.125 µV 1 µV 0.2 µV
144/430 MHz 0.125 µV — 0.2 µV
(SSB/CW/AM = 10 dB S/N, FM = 12 dB SINAD)
Squelch Sensitivity: SSB/CW/AM FM
100 kHz-1.8 MHz — —
1.8 MHz-28 MHz 2.5 µV —
28 MHz-30 MHz 2.5 µV 0.32 µV
50 MHz-54 MHz 1 µV 0.16 µV
144/430 MHz 0.5 µV 0.16 µV
Image Rejection: HF/50 MHz: 70 dB, 144/430 MHz: 60 dB
IF Rejection: 60 dB
Selectivity (–6/–60 dB): SSB/CW: 2.2 kHz/4.5 kHz
FM: 15 kHz/30 kHz FM-N: 9 kHz/25 kHz
SSB (optional YF-122S installed): 2.3 kHz/4.7 kHz (-66 dB)
CW (option YF-122C installed): 500 Hz/2.0 kHz
AF Output: 2.5 W (@4 Ohms, 10% THD or less)
AF Output Impedance
Optimized for use in the mobile
"Fast" AGC for CW, and "Slow" for
For split-frequency pile-ups or
CW OPERATING FLEXIBILITY
the FT-857 includes a three-message
:
The CW Pitch control
the center frequency of the
DSP BPF), as well as
Sidetone therefore
EASY DATA-MODE SETUP
injection sideband (USB/LSB) is
BFO and Display Shift and
AM: 6 kHz/20 kHz
: 4-16 Ohms
ULTRA-COMPACT HF/VHF/UHF
100 W* ALL-MODE TRANSCEIVER
(HF/6 m 100 W, 2 m 50 W, 70 cm 20 W)
ADVANCED CONVENIENCE FEATURES
FOR VHF/UHF OPERATION
The FT-857 is a VHF/UHF operator's dream come
true!
Versatile Tone Control Selections : Both CTCSS and
•
DCS Encoder/Decoders are built in! For easy
access to repeaters, a 50-tone CTCSS system
works along with a 104-code Digital Code
Squelch (DCS) in the FT-857. For applications
requiring split
"Split Tone"
CTCSS/DCS access, a convenient
feature is also provided, along with
the ability to encode (only) CTCSS or DCS, if
desired.
Automatic Repeater Shift :
•
430 MHz bands, the FT-857 will automatically
activate the repeater shift appropriate for the
part of the band in which you are operating.
Smart Search™ : When visiting a new city, use
•
the Smart Search system to scan the FM/AM
Mode for activity. When busy channels are
found, they will be automatically loaded into a
special Smart Search
recall.
Spectrum Scope
•
your
radio for a
few minutes,
turn on the
Spectrum Scope
to keep watch on band activity. The Spectrum
Scope
will create a bar-graph display of activity
on
channels above
operating
•
frequency.
ARTS™(Auto-Range Transponder System)
Search-and-Rescue operations, the ARTS™
ACTIVE-TUNING ANTENNA SYSTEM (ATAS-120 Option)
Yaesu's patented ATAS-120 Active-Tuning
Antenna System provides a compact, yet
efficient, automaticallyadjusting
antenna for
mobile, portable,
apartment-balcony use!
Utilizing DC voltages fed
from the FT-857, the
ATAS-120 automatically
adjusts its length longer or
shorter, with the FT-857
feeding a tiny amount of
power for SWR detection
by its internal directional
coupler. When the best
impedance match is
found, tuning automatically
stops, and operation can
begin.
Specified for operation on
the 7/14/21/28 MHz
Amateur bands, the ATAS120 contracts fully for use
Deluxe,
Ultra-High-Quality
Desktop Microphone
MD-200A8X
External AC
Power Supply (25A)
FP-1030A
Supplied Accessories: Hand Microphone MH-31A8J, Mobile Mounting Bracket MMB-82, DC Power Cord
About this brochure: we have made this brochure as comprehensive and factual as possible. We reserve the right, however, to make changes at any time in equipment, optional accessories,
specifications, model numbers, and availability. Some accessories shown herein may not be available in some countries. Some information may have been updated since the time of printing;
please check with your Authorized Yaesu Dealer for complete details.
For the latest Yaesu news,visit us on the Internet:
2003.0220NS(U/E)
On the 144 MHz and
™
memory bank, for easy
: If you have to be away from
and below your
current
: During
or
Remote Control
DTMF Microphone
MH-59A8J
Digital Signal
Processing Unit
DSP-2
DTMF Microphone
MH-36E8J
Separation Kit
YSK-857
VERTEX STANDARD CO., LTD.
4-8-8 Nakameguro, Meguro-ku, Tokyo 153-8644, Japan
http://www.vxstd.com
For mobile operation where mounting space is
very limited, the optional YSK-857 Separation Kit
allows the front panel to be remotely mounted
on your dashboard, with the transceiver
stashed away in available space. Data is
transferred
rate of 31.25 k/
on the 50/144/430 MHz bands, providing a low
SWR for local FM work (where vertical
polarization
is predominant). And if you're
apartment dweller, use the optional ATBK-100
Antenna Base Kit, which provides an
outstanding counterpoise to ensure low-angle
radiation on the VHF/UHF bands.
VERSATILE MEMORY SYSTEM!
The FT-857 provides up to 200 "Main" memory
channels, each of which may be named with an
Alpha-Numeric label of up to eight characters.
These 200 Memories may be separated into as
many as 10 Memory Groups of 20 Memories
each.
For added convenience, you also get a
"Quick Memory" and a "Home Channel" on each
band, plus Five pairs of band-limit memories, to
let you restrict operation to a sub-band, if you
UPGRADE WITH COLLINS® MECHANICAL FILTERS
FOR SSB AND CW (0ption)
To enhance performance on both receive and
transmit, high-performance Collins
®
Filter options are available for both SSB and
CW.
For SSB, the 2.3 kHz, 10-pole YF-122S option
provides
a very flat passband response, for
natural-sounding transmit audio, along with
excellent skirt selectivity. And for CW, the 500
Hz, 7-pole YF-122C and 300 Hz, 7-pole YF-122CN
options help separate signals on a crowded
band in a contest.
Front Panel
Headphone Jack
AF Knob
SQL/RF Knob
CLAR Key
SELECT Knob
HOME Key
FUNC Key
Ext. Meter Jack
MODE( )/MODE( ) Key
DSP Button POWER Switch
Liquid Crystal Display
CAT/LINEAR Jack
DATA Jack
Multi Function Keys
Rear Panel
DC Cable
HF/50 MHz Antenna Jack
ACCESSORIES & OPTIONS
Lightweight
Stereo Headphone
YH-77STA
External Automatic
Antenna Tuner
FC-30
0.5 ppm High-Stability
Reference Oscillator
TCXO-9
CAT Interface Cable
CT-62
Collins® SSB Filter
(2.3 kHz/4.7 kHz:
—6 dB/—66 dB)
YF-122S
Packet Cable
CT-39A
VERTEX STANDARD
US Headquarters
10900 Walker Street, Cypress, CA 90630, U.S.A.
YAESU EUROPE B.V.
P.O. Box 75525, 1118 ZN Schiphol, The Netherlands
YAESU UK LTD.
Unit 12, Sun Valley Business Park, Winnall Close
Winchester, Hampshire, SO23 0LB, U.K.
VERTEX STANDARD HK LTD.
B9200411
Printed in Japan
Unit 5, 20/F., Seaview Centre, 139-141 Hoi Bun Road,
Kwun Tong, Kowloon, Hong Kong
OPTIONAL REMOTE MOUNTING KIT
between units at a lightning-fast
bps, for seamless remote
HIGH-RESOLUTION DOT-MATRIX DISPLAY
an
Mechanical
TX/BUSY Indicator
ACC Jack
KEY Jack
Collins® CW Filter
(500 Hz/2 kHz:
—6 dB/—60 dB)
YF-122C
BAND DATA Cable
CT-58
The large 2.1"x0.69"(53.4x17.2 mm) multi-color
display provides
easy-to-read indication of many
operating functions. The color may be chosen
from among 32
different color selections, and
may be programmed
each band, mode, Memory Group, or even to
track signal strength and power output by
AND MUCH, MUCH MORE. . .
Battery Voltage Meter •TX Meter Selection
•
Modulation Level, ALC, Power Output, or SWR.
Two
Antenna Connectors
•
HF/50 MHz and 144/430 MHz, affixed to the
rear panel.
Large, Easy-to-See TX/RX Status LED •Optional
•
High-Stability Reference Oscillator
TCXO-9 provides ±0.5 ppm stability at 77˚ F/25˚ C
for applications requiring very high frequency
accuracy.•Versatile Scanning Features
Scan, Memory Scan, Band-Limited Scanning
(PMS), Priority Scan and Dual Watch.•Auto
Power-Off (APO) and Time-Out Timer (TOT)
CAT System
•
BAND(DWN)/
BAND(UP) Keys
MAIN DIAL
EXT SPKR Jack
144/430 MHz Antenna Jack
(European Version: Type N)
Collins® CW Filter
(300 Hz/1 kHz:
—6 dB/—60 dB)
YF-122CN
HF/50 MHz 1 kW Linear Amplifier
VL-1000 + VP-1000
http://www.yaesu.co.uk
Email: sales@yaesu.co.uk
Computer Programming capability
V/M Key
LOCK Key
http://www.vxstdusa.com
Email: amateursales@vxstdusa.com
Phone 714/827-7600; Fax 714/827-8100
to show different colors on
Large Character mode
Separate jacks for
The
VFO
New Remote Control
DTMF Microphone
MH-59A8J (Option)
The optional MH-59A8J Remote Microphone
provides control of the major functions
of the FT-857 from the microphone’s
keypad. The MH-59A8J includes a rotary
control knob for adjusting the operating
frequency and the receiver volume level.
LOCK Switch
PTT
Switch
Keypad
1(DSP) key
2(MHz) key
3(CLAR) key
4(HOME) key
5( MODE) key
6(MODE ) key
7(V/M) key
8
(BAND DWN) key
9(BAND UP) key
key
VHF/UHF Antenna Base/
Counterpoise Kit for
ATAS-120
ATBK-100
http://www.vxstd.com.hk
UP/DWN keys
Motor Drive
Auto-Tuning
Antenna System
ATAS-120
SEL/DIAL
key and
Indicator
SEL knob
0(CNTL) key
ENT(#) key
A key
B key
C key
F(D) key
ACC key
PWR(FAST) key
P1 key
P2 key