The FT-857D is the world's smallest HF/VHF/UHF mobile transceiver and provides base station-type 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 optional remote-head operation make the FT-857D the expert's choice for high-performance mobile operation!
--> Now with free YSK-857 separation kit
Ultra Compact Design
Measuring only 155 x 52 x 233 mm, the FT-857 is the world’s smallest full-power HF/VHF/UHF multimode transceiver! Its rugged case design is a masterpiece of ergonomic design, with commonly used controls conveniently positioned for easy access.
High-Performance Receiver Design
Building on the acclaimed performance of the FT-1000D, Mark-V FT-1000MP, and FT-897D, Yaesu’s engineers have crafted the FT-857D’s front end for a very low noise floor, along with wide dynamic range. Using an up-conversion architecture for HF with a first IF of 68.33 MHz, the FT-857D 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 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!
The FT-857D 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
For superior interference rejection and transmitter “talk power,” the FT-857D’s DSP circuitry enhances both sides of the communications circuit. The FT-857D’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 the FT-857D is enhanced by the large-diameter (1.7”) 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.
|Frequency Range Transmit|| : ||160 - 6 Meters, 2 Meters, 70 Centimetres (Amateur bands only)|
|Frequency Range Receive|| : ||0.1-56 MHz, 76-108 MHz, 118-164 MHz, 420-470 MHz |
|Emission Modes|| : ||A1 (CW), A3 (AM), A3J (LSB/USB), F3 (FM), F1 (9600 bps packet), F2 (1200 bps packet) |
|Frequency Steps|| : ||10 Hz (CW/SSB), 100 Hz (AM/FM/WFM) |
|Antenna Impedance|| : ||50 Ohms, Unbalanced |
|Operating Temperature Range|| : ||-10 C to +60 C |
|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|| : ||Squelched 600 mA (Approx.) | Receive 1 A | Transmit 22 A|