1. In celebration of the launch of the new redesigned site, we just gave away a FREE antenna! Click Here to See Who Won!

Yaesu FT-857D FT-897D 857 897 Frequency modification expansion

Discussion in 'Yaesu' started by Happy_Hamer, Feb 2, 2008.

  1. Happy_Hamer

    Happy_Hamer Administrator Staff Member

    Joined:
    Mar 22, 2001
    Messages:
    5,043
    Likes Received:
    126
    Before and after pictures for the USA 857 897 D frequency conversion.

    MODIFY AT YOUR OWN RISK!

    Solder jumper 7 8 9 and 6, then reset the radio by holding the F and VM keys down while turning the radio back on


     

    Attached Files:

    #1
  2. novakor

    novakor Active Member

    Joined:
    Apr 5, 2005
    Messages:
    1,729
    Likes Received:
    2
    Great job hamer,pics are great........enlarge even better(y) Who soldered that anyway:tongue:........This is the type of post i like.

    73
     
    #2
  3. rfoverlord

    rfoverlord guardian of freedom

    Joined:
    Jun 1, 2005
    Messages:
    753
    Likes Received:
    2
    Hamer that was most excellent!! great job and detail.
     
    #3
  4. Happy_Hamer

    Happy_Hamer Administrator Staff Member

    Joined:
    Mar 22, 2001
    Messages:
    5,043
    Likes Received:
    126
    Thanks, I took the before picture and Moleculo took the after.
     
    #4
  5. Moleculo

    Moleculo Administrator Staff Member

    Joined:
    Apr 14, 2002
    Messages:
    8,369
    Likes Received:
    548
    Hamer's too scared to modify his own radio.
     
    #5
  6. AudioShockwav

    AudioShockwav Extraterrestrial Admin Staff Member

    Joined:
    Apr 6, 2005
    Messages:
    5,224
    Likes Received:
    894
    HAHAHAHAHAHAHAHAHA
    :tongue::tongue::tongue::tongue:


    73
    Jeff
     
    #6
  7. dudmuck

    dudmuck Active Member

    Joined:
    May 21, 2007
    Messages:
    483
    Likes Received:
    1
    The switch position on the stock mic set to 1, and operating on AM seems to give muffled transmit audio.
    Japanese needs better bass response compared to english. English speaking needs switch position 2.

    In the configuration menus, there are individual settings for mic gains on AM, SSB and FM.
    In function row "c" there is PROC speech processor.
    You need to adjust all these settings for what gives the best audio for your voice.
     
    #7
  8. Happy_Hamer

    Happy_Hamer Administrator Staff Member

    Joined:
    Mar 22, 2001
    Messages:
    5,043
    Likes Received:
    126
    I have no reason to modify the radio, it makes me the elite since it is not modified. :drool:

    Now Moleculo is in Navy/Marine M.A.R.S. so it makes sense for him (y)
     
    #8
  9. 116sd019

    116sd019 Member

    Joined:
    Feb 19, 2008
    Messages:
    27
    Likes Received:
    1
    Hi I Have European version FT-857 its work this operation my rig ? or dengerous ?
     
    #9
    1 person likes this.
  10. Moleculo

    Moleculo Administrator Staff Member

    Joined:
    Apr 14, 2002
    Messages:
    8,369
    Likes Received:
    548
    #10
  11. AudioShockwav

    AudioShockwav Extraterrestrial Admin Staff Member

    Joined:
    Apr 6, 2005
    Messages:
    5,224
    Likes Received:
    894
    Here is some more info on the FT 897......


    73
    Jeff
     

    Attached Files:

    #11
  12. SR385

    SR385 Active Member

    Joined:
    Mar 9, 2007
    Messages:
    794
    Likes Received:
    7
    I did this mod to my 857D before it was even ever plugged in. Be careful and use an iron with a very fine tip. I actually bought a Hakko 936 soldering station just to do this mod.

    It's a lot smaller than those pictures make it look ;-). Use a fine tip, nice and hot and get in and out quickly on the pads.
     
    #12
    1 person likes this.
  13. JK_RUBICON

    JK_RUBICON Registered User

    Joined:
    Mar 10, 2008
    Messages:
    317
    Likes Received:
    0
    Scary part about that,,,,, I was going to mod a TS-480HX for a guy, but i always run the radio first to make sure it works, well after about 5 minutes it just locked up and could not be reset, AES took it back and sent a new one, it worked perfect
     
    #13
  14. flashmojo

    flashmojo Member

    Joined:
    Jun 26, 2010
    Messages:
    1
    Likes Received:
    0
    Thanks

    Thanks Happy Hamer! I almost messed my radio up by doing the FT-857 mod without the diodes. Wanna see a grown man cry?
     
    #14
  15. viking

    viking Member

    Joined:
    Jul 5, 2010
    Messages:
    1
    Likes Received:
    0
    Hi! Glad to have found your forum.

    Does this work on the current run of new 857D?

    I have been searching high and low for the newer mod.

    Is this the complete tx/rx mod or the MARS mod?
     
    #15

Share This Page