Don`t kill your radio with hardware modifications. Try to use the software solution. Peter, VK2IT supplied a great tool as freeware. Please check his advice from the readme-file first. DOWNLOAD

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Emission Mode


TX Power

160-6m 100W

2m 50W
















Now we know what the FT-857 is all about, well at least in part.  The following is the text from the February QST  ad.

Introducing Yaesu's All  New HF Mobile

Blending leading edge technologies developed on the FT-897  and Mark V  Ft-1000MP transceivers, the FT-857 is the world's smallest  HF/VHF/UHF Multimode Transceiver and it's available now!

The Ft-857  is a high-performance, ultra-compact transceiver operating  on 160-10 m HF  bands, plus the 50, 144, and 430 MHz VHF/UHF bands.  Providing 100 W on HF/6  m, 50 W on 2 m, and 20 W on 70 cm, the FT-857  is ideal for mobile, vacation,  Dxpeditions, or home use where space  is at a premium.

Utilizing the  renowned receiver performance of the FT-897 and the  Mark V FT-1000MP, the  FT-857 features wide dynamic range, DSP, and  outstanding audio.

The  wide array of convenience features includes a 32-color display;  spectrum  scope; built-in keyer with memory (about time IMO and beacon  mode; US  weather band reception; 200 memories with alpha-numeric  labels; AM aircraft  reception; detachable front panel (with optional  YSK-857 required); and  much, much, muc more.

You've asked for it, and here it is today:  the  FT-857 Mega-Mobile.


Judging  from the "actual size" photo, it appears to be somewhat  smaller than my  FT-100D.  This has the making of an exciting new radio.

Remember,  this is the February issue of QST and dealers haven't been told the price or  when we can actually get our hands on it.

Barry -  W4WB