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Elcon EL-31 replacement display for the Yaesu FT301D

Discussion in 'Amateur Radio Equipment Reviews' started by K4SUE, Nov 10, 2015.

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  1. K4SUE

    K4SUE Ham Member QRZ Page

    On of the major shortcomings of the Yaesu FT301D was the display. The original 7 segment displays also contained the counter circuitry. It was an usual approach, but with those displays commonly available back then failed displays could be (relatively) easily changed out. Since they became scarce (and subsequently expensive) I suspect a few otherwise functional FT301Ds have sold off or relegated to the shelf.
    Roland, HB9GAA, has designed a replacement display kit - the EL-31 - that duplicates the functionality of the display-logic unit PB1542 in a drop in board. This is a kit - but the board is a thru hole design - so building it doesn't tax dexterity or eye sight. I spend a total of 4 hours putting it together, another 15 minutes testing and calibrating it, and approximately 1 hour changing out the old board with the new, buttoning up the radio, etc. The board and components are excellent quality and the instructions are complete. Instructions are downloaded from the company website and run 23 pages. A large section of that is on setup of the display since it has quite a bit more functionality than the board it's replacing. One of the interesting features is that the display can be set to 'auto' mode which provides 10 hz resolution 160-40m and 100 hz resolution on the higher bands, or it can be set to 100 hz resolution on all bands. It also gives a visual power supply voltage readout and display brightness can be varied. All these functions are accessible via a Phillips remote control. Roland will include the remote, less battery, for an additional USD $2.
    This added the finishing touch to my restoration of the Yaesu 'boatanchor' which is now a joy to operate.
     
  2. W9GB

    W9GB Ham Member QRZ Page

    You are one of the first in USA, that I have seen posting results from the FT-301D ElCon conversion, designed by Roland Elmiger, HB9GAA
    image.gif image.gif
    --
    There are 2 good solutions for the Yaesu FT-301D digital display.
    One by Paul Messer, WA7ZVY and the other
    by Roland Elmiger, HB9GAA - founder of ElCon in Switzerland.
    With the death of Neil Heckt (sk, Aug 2015), founder of AADE,
    the future of an earlier LCD solution by AADE is unknown (not recommended at this time).

    PB-1542B Replacement Display by Paul, WA7VZY (2011-2013)
    http://www.ocrg.org/documents/FT-301D_Replacement_Display_Document.pdf

    ElCon company, in Switzerland, "EL-31" - a PB-1542(B) Replacement Display KIT (2014)
    http://shop.elcon.ch/media/docs/el-31_v1.0c_en.pdf

    ElCon provides a number of replacement Yaesu boards and options.
    http://shop.elcon.ch
     
    Last edited: Nov 10, 2015
  3. HB9GAA

    HB9GAA Ham Member QRZ Page

    Replacement frequency display module EL-31, has new features

    The EL-31 replacement frequency display module from ELcon has received new functions.
    New functions are that the frequency display always shows the correct frequency even with transverter operation and AUX band modifications.
    For example, the AUX band can be converted to the 17m band and the frequency display will correctly display 18.0 to 18.5MHz.
    All parameters can be easily set via IR remote control.
    The construction and operating instructions and the new firmware can be downloaded from the ELcon Shop website.

    Roland, HB9GAA
     
    W9GB likes this.

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