Quick Detail
Place of Origin
HS-CODE
85-
Package & Delivery Lead Time
Detailed Description
Main functions
Ultra Compact Design
The car radio is the world’s smallest full-power HF/VHF/UHF multimode transceiver! Its rugged case design is a masterpiece of ergonomic design, with often-used switches and knobs conveniently positioned for easy access.
High-Performance Receiver Design
Building on the acclaimed performance of car radio Mark-V FT-1000MP, and FT-897, Yaesu’s engineers have crafted the car radio'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 double-conversion superheterodyne system (triple conversion on FM), with the 2nd IF at 10.7 MHz. 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!
Wide Frequency Coverage
Providing transmitter coverage of the HF, 50 MHz, 144 MHz, and 430 MHz Amateur bands, the car radio 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!
Versatile Memory System
The car radio 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 ten pairs of band-limit memories, to let you restrict operation to a sub-band, if you like.
Digital Signal Processing (option)
For superior interference rejection and transmitter “talk power,” car radio's optional DSP circuitry enhances both sides of the communications circuit. The FT-857’s DSP Unit features a 24-bit high-tech D/A chip for signal processing. Included are Bandpass Filter, Auto-Notch, and Noise Reduction filters, along with a Microphone Equalizer.
Big Radio Tuning Dial and Outstanding Ergonomics
Ease of operation of car radio is enhanced by the large-diameter Main Tuning Dial, similar in size to the tuning knob of many base station rigs. Selectable tuning steps of 2 kHz/4 kHz per revolution allow easy navigation around your favorite bands, while important keys and switches are strategically placed around the front panel for quick access.
Specification
GENERAL
Frequency Range: Receive:
0.1-56, 76-108, 118-164 and 420-470 MHz
Transmit:
160 - 6 Meters including 60 Meters
70 Centimeters (Amateur bands only)
5167.5 kHz: Alaska Emergency Frequency
(U.S.A. version only)
Emission Modes:
A1 (CW), A3 (AM), A3J (LSB/USB),
F1 (9600 bps Packet), F2 (1200 bps Packet), F3 (FM)
Synthesizer Steps (Min.):
10 Hz (CW/SSB), 100 Hz (AM),
100 Hz (FM), 100 Hz (WFM)
Antenna Impedance:
50 Ohm, Unbalanced
Operating Temp. Range:
-10 °C to +60 °C (14 F to 140 F)
Frequency Stability:
Better than ? ppm (-10 °C to +50 °C)
Power Requirements:
DC 13.8V ?0 %, Negative Ground
Current Consumption:
Receive (Squelched): 0.55A,
Receive (Max. Audio): 1A
Transmit: 22A (@ 100W RF output)
Case Size:
6.1" (W) x 2.0" (H) x 9.2" (D) (155 x 52 x 233 mm)
Weight:
4.6 lb. (2.1 kg.)
TRANSMITTER
Power Output:
160 - 6m: 100 Watts (25 Watts AM carrier)
2m: 50 Watts (12.5 Watts AM carrier)
70cm: 20 Watts (5 Watts AM carrier)
Modulation Types: SSB:
Balanced Modulator
FM:
Variable Reactance
AM:
Early Stage (Low Level)
FM Maximum Deviation:
kHz (?.5 kHz on FM-N)
Non-harmonic:
At least 50 dB down (1.8 - 29.7 MHz)
At least 60 dB down (50/144/430 MHz)
Carrier Suppression:
At least 40 dB
Opp. Sideband Suppression:
At least 50 dB
SSB Frequency Response:
400 Hz - 2600 Hz (-6 dB)
Microphone Impedance:
200 - 10 k Ohm (Supplied microphone: 2 k Ohm)
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