YAESU - FT-857D
ΓΙΑ ΠΕΡΙΣΟΤΕΡΕΣ ΠΛΗΡΟΦΟΡΙΕΣ ΚΛΙΚ ΕΔΩ
The
FT-857D, the world's smallest HF/VHF/UHF mobile transceiver, 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!
The new FT-857D version includes
coverage of the U.S. 60-meter (5 MHz) band, plus the previously-optional
DSP circuitry, at no additional cost!
Ultra Compact Design
Measuring just 6.1” x 2” x 9.2”, the FT-857 is the world’s smallest
HF/VHF/UHF up to 100W 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 the FT-1000D,
Mark-V FT-1000MP, and FT-897, Yaesu’s 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 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! 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 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,” the FT-857’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 the FT-857 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.
Δεν υπάρχουν σχόλια:
Δημοσίευση σχολίου