FT-857
ULTR-COMPACT HF/VHF/UHF
100w ALL MODE TRANSCEIVER


 
 

Ultra-Compact Design 
Measuring just 155x 52 x 233 mm, the FT-857 is teh world's smallest full-power HF/VHF/UHF multimode transceiver.
The FT857's rigged power amplifier section utilizes Bipolar Transistor devices, porviding low-noise, low-distortion, and high reliability. Oh HF and 6 meters you get 100 watts of clean power output, while on 2 meters you get 50 watts out, and 20 watts out on 70 cm. Extensive cooling system and aluminium die-cast chassis ensure reliability.

High performance receiver and PLL
The FT857's front-end has very low noise floor, along with wide dynamic range. Utilizing an up-conversion architecture for HF with a 1st IF of 68.33 MHz, the FT857 features a double-conversion superheterodyne system (single conversion on WFM), with the 2nd IF at 455KHz. Extensive bandpass filtering in the front-end, along with careful device selection and gain distribution, yield a receiver system ready for the strong signal challenges of today's crowded bands.
The quiet, fast-acting local oscillator system of the FT857 using a DDS to achieve fast lock times and silky-smooth tuning in steps as fine as 10 Hz. The excellent carrier-to-noise ratio helps preserve spurious-free dynamoc range in a crowded band, and the smooth tuning leaves you with the "analog VFO" feeling.
 

Enhanced transceiver performance through DSP
* DSP Bandpass Filter
Filters fro Voice and CW augment teh analog filters for enhanced interference rejection.
* DSP Auto-Notch Filter
To reduce interference caused by annoying carriers within the audio passband.
* DSP Noise Reduction
16 noise-reduction algoritms for use in wide variety of noise environments.
* DSP Microphone Equalizer
Four-position circuit to match the waveform produced by your voice for best TX audio quality.

Advanced features for Active Operators
* IF Shift to vary the center frequency of IF passband
* IF Noice Blanker optimized for usein the mobile environment
* IPO for better reception of low HF bands
* Adjustable AGC
* Calrifier (R.I.T.)
* RF Gain Control
* VOX
* Built-In CW electronic keyer
* CW message memory with beacon mode
* CW Pitch/Sidetone Control
* CW Trainer

Ease access to the features
* "Big radio" Tuning Dial Knob
The large (diam 43mm) Main Tuning Dial (10Hz step min), similar in size to the tuning knobs of many base station rigs. The SELECT knob aloows "channelized" tuning in minimum steps of 1 KHz on SSB/CW, or 5 KHZ on FM, for quick and easy tuning around the band.
 
* "Scrolling Front Panel" keys
Easy-to-use "multi-function" keys controls adjustments of a number of transceiver functions durnig operation. Pressing the FUNC key allows selection of the operating function row, using the SELECT knob, and may then press the A B or C key, as needed, to change the setting. One row of keys can be custom-programmed, allowing you quick access to partucular functions.

Advanced Features for VHF/UHF Operation
* Versatile Tone Control selection for both CTCSS and DCS
* Automatic Repeater Shift
* Smart Search (tm)
* Spectrum Scope
* ARTS (tm)


 

OTHER FEATURES

  • 200 "Main" channels Memory
  • Optional Collins IF Filters 
  • Data connector for Packet/PSK/RTTY 
  • Optional ATAS-120 HF Mobile Antenna 
  • Battery Voltage Meter / TX Meter selection 

 

  • Two antenna connectors separate for HF/6m and VHF/UHF 
  • CAT PC Control Sytem 
  • Versatile scanning features 
  • Auto Power Off (APO) and Time-out Timer (TOT) 
  • High-resolution multi-color LCD 
OPTIONAL ACCESSORIES
MD-200a8x
Deluxe, Ultra-High quality desktop microphone
MH-59a8j
Remote Control DTMF microphone
MH-36e8j
DTMF Microphone
YH-77SA 
Lightweight Stereo Headphone
TCXO-9
0.5ppm High-Stability Reference Oscillator
YF-122S
Collins(r) SSB Filter (2.4KHz)
YF-122C 
Collins(r) CW Filter (500Hz)
YF-122CN
Collins(r) CW Narrow Filter (300Hz)
ATBK-100
VHF/UHF Antenna Base for ATAS-120
FP-1030A  
External AC Power Supply (USA) 
DSP-2
Disgital Signal Processing Unit
YSK-857
Spearting Kit
FC-30  
External ATU
CT-62
CAT Interface Cable 
CT-39A
Packet Cable
CT-58  
BAND DATA Cable
VL1000 + VP1000
HF/50 MHz 1 KW Linear Amplifier "QUADRA"

ATAS-120
Motor Drive Auto-Tuning Antenna System

* Standard package includes: DTMF Microphone MH48a6j, Base Station feets, MMB63 Mobile Bracket, DC Cable

 
SPECIFICATIONS
GENERAL TRANSMITTER
Frequency Range (MHz) RX: 0.1-56MHz, 76-108MHz, 118-164MHz, 420-470MHz
TX: 160-6 Meters, 2 Meters, 70Cm HAM Bands Only
Output power SSB/CW/FM
160-6 meters: 100w
2 meters: 50W
70 cm : 20 W

AM
160-6 meters: 25w
2 meters: 12.5W
70 cm : 5 W
Emission Modes  A1 (CW), A3 (AM), A3J (LSB/USB), F3 (FM), F1 (9600 bps packet), F2 (1200 bps packet) Modulation Type SSB: Balanced Modullator
AM: Early Stage (Low Level)
FM: Variable Reactance 
Synthesizer Steps  10Hz(CW/SSB), 100Hz(AM/FM/WFM) FM Maximum Deviation  ±5 KHZ/ ±2.5 KHz (FM-N)
Antenna Impedance  50OHm unbalanced Spurious Radiation -50dB (1.8-29.7MHz)
-60dB (50/144/430MHz) 
Operating temperature  -10°C to +60°C RECEIVER
Frequency stability ±4 ppm from 1 min to 60 min after power on
±0.5 ppm with TCXO-9 after warmup
Receive System Double conversion superheterodyne (SSB/CW/FM)
Superheterodyne (WFM)
Supply Voltage 13.8 V DC ±15%, negative ground  Intermediate freq. 1st : 68.33 MHZ (10.7MHZ - WFM)
2nd : 455KHz
Current Consumption
RX:
TX:


1A
22A
Sensitivity 100-1.8 MHz - 32 mkV (AM)
1.8MHZ-28MHz - 0.2mkV (SSB/CW)/ 2 mkV
28-30MHz: 0.2 / 2 / 0.5 (FM)
50-54MHz: 0.125 / 1 / 0.2
144/430MHz: 0.125 / - / 0.2
Case Size 155 x 52 x 23 mm Selectivity (-6/-60 dB)  SSB/CW: 2.2 KHz / 4.5 KHz
AM: 6 KHz / 20 KHz
FM: 15 KHz/ 30 KHz
FM-N: 9 KHz / 25 KHz
Weight (approx) 2.1 Kg IF Rejection  60 dB
Image Rejection  HF/50 MHz: 70dB; 144/430 MHZ: 60dB
Maximum AF Output  2.5 W at 4 OHms, 10% THD or less