Ham Radio KITS - TOP PAGE - Washington Island BOOKS

May 5, 2022 - the DSWK is in stock

NEW (10/24/2003) - DSWK chip

The DSWK is an upgrade for the Small Wonder Labs DSW and DSW-II stock PIC chip.

Please don't contact Dave Benson of Small Wonder Labs with questions or complaints about the DSWK and it's application to the DSW and DSW-II series of transceivers - the more time Dave spends answering emails, the less time he has to design and produce his fine kits. Dave and SWL have no affiliation with or endorsement of the DSWK chip. If you have a question about the DSWK, please email it to the DSWK designer (me, Chuck Olson):

In addition to the stock DSW features, the DSWK offers:

  • XIT (transmitter incremental tuning) mode
  • optional 10 Hz resolution tuning steps in addition to stock 50 and 200 Hz steps
  • 10 Hz readout resolution when using 50 or 10 Hz tuning steps
  • DDS calibrate mode - set your DSW xmit frequency to agree with your "big rig"
  • VFO last frequency non-volatile memory (settings saved without power)
  • two non-volatile frequency memories (with hardware mod)

  • and adds many of the Norcal keyer features to the DSW and DSW-II:

  • 4 wpm to over 40 wpm speed range
  • pot or paddle speed control
  • two 37 character plus one 33 character, non-volatile memories
  • iambic a or b modes
  • Bug mode
  • Autospace mode
  • Beacon mode
  • Reverse paddle mode
  • 5 dit-dah tune mode

  • and some features not included in the Norcal keyer:

  • optional command speed setting
  • programmable press and hold duration length

  • Printed manual available for an additional charge or save money by downloading (Right click/save target as) and printing the manual for more information on the DSWK.

    chip price (no manual) is $7 + shipping/handling

    Ordering information:

    Because the DSW comes in a variety of configurations, please provide the following information when ordering a DSWK chip:

    1) the rig type: original DSW or the new DSW-II
    2) the band (80, 40, 20, 30 - for 17, please inquire)

    if the rig is an original DSW, please provide this additional info:
    3) the IF frequency on the crystals, (4.000 MHz, 5.185 MHz, 5.068 MHz)
    4) the DDS clock frequency (25 MHz, 32 MHz, 50 MHz)
    5) the Freq switch type: built into the encoder knob (push) or separate

    Print out a Kit order form to figure your order manually
    OR try our: javascript order form to let your browser do the math

    Links and Downloadable files for DSWK

    The Acrobat files of complex diagrams (like the schematic) may not view well on your computer screen - suggestion: use the magnifier to zoom in for better detail or print out the file.

    DSWKMENU.pdf (24k) - an Acrobat file a DSWK "cheat sheet" by Tomo Takahashi, JR0ECQ

    Lew Paceley's (N5ZE) DSWK mods for his DSW-II

    Lew Paceley's (N5ZE) web site if the above link is broken

    dswkpa.pdf (51k) - an Acrobat file of the DSWK manual

    dswkmods.pdf (687k) - an illustrated implementation of DSWK mods on the DSW-II by Steve Lawrence, WB6RSE

    dswkhist.txt (1k) - a text file of the version history of the DSWK firmware

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