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車載台設備介紹

車載台設備介紹

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YAESU FT-857D

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1060512 BU2BF 發表於 2010-6-25 08:51:22

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YAESU FT-857D

                               
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YAESU - FT-857D
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, outstandig 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!



                               
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Ultra Compact Design
Measuring just 6.1” x 2” x 9.2” (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 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.  

以上資訊轉載自http://www.yaesu.com
FT897 線上說明書

操作說明書:FT-857 中文操作說明書(簡體) 譯者:BG1TRP 感謝譯者位中文化做出貢獻
YAESU_FT-857D.rar (1.01 MB, 下載次數: 30)
HAM~就是要分享 HAMTalk Club http://www.HAMTalk.asia
turboone 發表於 2010-6-26 12:35:38
螢幕太小了
HAM~就是要分享 HAMTalk Club http://www.HAMTalk.asia
BX2AGA 發表於 2011-10-12 00:24:23
請問一下857D比較好還是897D呢??
HAM~就是要分享 HAMTalk Club http://www.HAMTalk.asia
 樓主| BU2BF 發表於 2011-10-12 08:14:28
回复 970 的帖子

兩款基本性能差不多
但我僅針對方便性做說明..


857D、897D各有利弊..
857D-螢幕可分離,適合車載使用,但功能雖強螢幕太小,不停車操作恐有困難,且拖咪的線必須連接在分離的主機上,有點難看,一般是用衛星導航的架子+轉接架做依拖,吸付在玻璃上。

897D-雖然不是真正的座台機但功能很多,面板上有數個功能鍵可操作,可選配件除一般溫度補償外還有內置電池、內置電源可選擇,因體積較大不適合車載,適合家裡或應急野外使用。
另~857D、897D在任何情況用下,V/UHF頻段外... 除非你有一支很好的天線不然...還需要天線調節器,有點麻煩!
HAM~就是要分享 HAMTalk Club http://www.HAMTalk.asia
BX2AGA 發表於 2011-10-23 21:18:15
我想另外請教一下~
那I7000會比857d和897d好嗎?
HAM~就是要分享 HAMTalk Club http://www.HAMTalk.asia
 樓主| BU2BF 發表於 2011-10-24 10:10:33
970 發表於 2011-10-23 21:18
我想另外請教一下~
那I7000會比857d和897d好嗎?

...你是說IC7000吧?
IC-7000 價格較高,我沒使用過,沒法幫您做比較。
SORRY!
HAM~就是要分享 HAMTalk Club http://www.HAMTalk.asia
tonyleebin 發表於 2012-1-1 22:27:32
好,参考参考
HAM~就是要分享 HAMTalk Club http://www.HAMTalk.asia
morsecat 發表於 2012-12-29 09:07:23
這台價廉,但高功率發射,零件會龜裂損壞...
HAM~就是要分享 HAMTalk Club http://www.HAMTalk.asia
BX4BF 發表於 2013-3-17 21:09:32
IC-7000?去問BV6HJ柯老大吧!他使用已經2年有餘了說。至於本人的857D,已經服役6年。
HAM~就是要分享 HAMTalk Club http://www.HAMTalk.asia
鄭昕育@FB 發表於 2013-12-22 15:21:51
BX4BF 發表於 2013-3-17 21:09
IC-7000?去問BV6HJ柯老大吧!他使用已經2年有餘了說。至於本人的857D,已經服役6年。 ...

請問前輩..用這857D 收聽一般am/fm廣播電台要做任何調整嗎?
還有一般的商業短波電台...voa  rit  ....等等
想要將原來的汽車音響升級.....
謝謝


HAM~就是要分享 HAMTalk Club http://www.HAMTalk.asia
鄭昕育@FB 發表於 2013-12-22 15:23:00
聽鄉民說要進一步拓頻...需要嗎?
HAM~就是要分享 HAMTalk Club http://www.HAMTalk.asia
BU2CQ 發表於 2013-12-22 20:41:22
感謝分享!
HAM~就是要分享 HAMTalk Club http://www.HAMTalk.asia
BU2CN 發表於 2013-12-22 21:53:32
鄭昕育@FB 發表於 2013-12-22 15:23
聽鄉民說要進一步拓頻...需要嗎?

接收的頻率有含括就沒有拓頻的問題..
只是要他收fm的話, HI FI 的效果肯定沒有廠配
效果來的好吧..
HAM~就是要分享 HAMTalk Club http://www.HAMTalk.asia
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