Dan (YO3GGX) - Simple projects you can build or use at home


Here you will find some pieces of software and hardware built at home during my very limited free time. New projects will be added as time goes by.
The newly posted or updated ones are first in the list, in each category, to easily find new things when you come back.
If you like my little projects and you would like to contribute with a small amount you can do it through PayPal using the icon below.

A local forum is available here for technical discussions about my projects.

So... let's start:


NEW version! ( Aug 10, 2018)

Pocket RxTx Pro experimental version 3.0b5
the most important update to date

Forum thread discussing this application here.

Click on the left picture for more screenshots.

  • PocketRxTxE 3.0b5 package here
  • jAReC 3.0b5 package here
  • Version history here

  • (Mar 4, 2018)

    Android app on Google Play Free version
    Android app on Google Play Pro version
    YouTube video YouTube presentation video

    Pocket RxTx version 2.1
    now with Call Logging and QRZ database query support

    Extra features for the Pro version - check User Guide.

    Offline User Guide here
    Forum thread discussing this application here.

    Click on the left picture for more screenshots.

    Download previous version (0.8.1) from here:
  • Application package here
  • Online User Guide (Multilingual) here
  • Offline User Guide (EN) here

  • NEW version! (Feb, 25 2018) - works with Pocket RxTx v2.1

    jAReC - (j)ava (A)udio and (Re)mote (C)ontrol v2.0
    jAReC mini v2.0 - console (no-GUI) version

    Use this only with Pocket RxTx v2.x.
    Check History in the user guide for all changes

    Download jAReC v2.0 here
    Download jarecmini v2.0 here

    Forum thread discussing this application here.
    Offline User Guide jAReC v2.0(EN) here
    Offline User Guide jAReCmini v2.0(EN) here

    Click on the left picture for more screenshots.

    Download previous version (0.8.1) from here:
  • jAReC(only for Pocket RxTx 0.8.x) here
  • jarecmini(only for Pocket RxTx 0.8.x) here
  • jAReC Online User Guide (Multilanguage) here
  • jarecmini Online User Guide (Multilanguage) here
  • jAReC Offline User Guide (EN) here
  • jarecmini Offline User Guide (EN) here

  • NEW version! ( Feb 4, 2018)

    Android app on Google Play

    miniVNA Android application version 2.0.2

    Offline User Guide here
    Forum thread discussing this application here.
    Some sample data here

    Click on the left picture for more screenshots.

    Download previous Play Store version (0.9.6-3) from here:
  • Application package here
  • Online help (multilingual) here
  • Ofline help(EN) as PDF here

  • (Sep 9, 2017)

    Prusa i3 MK2(S) camera, light and remote control

    All 3D Printed parts available on Thingiverse (check the documetation for more details)

    Offline documentation (EN) available here

    (Jul 11, 2016)

    FT8x7EE v0.1 - Yaesu FT8x7 EEPROM analyzer

    Analyze the EEPROM data for Yaesu FT817/857/897 transceivers

    Download ft8x7ee v0.1 from here
    Offline User Guide FT8x7EE 0.1(EN) available here

    (Jul 1, 2016)

    CATconv - CAT protocol converter v0.2

    Use your new Yaesu FT-991 with the free version of HamRadio Deluxe (5.x)

    Download CATconv v0.2 from here
    Offline User Guide CATconv 0.2(EN) available here
    New in 0.2 - bug fixes (check the updated user guide)

    Click on the left picture for more screenshots.

    (weekly-monthly updates)

    Some of my 3D designs on Thingiverse

    ready to download (as STL files) and print

    (June 15, 2014)

    Coaxial/Optical Digital Audio Selector/Splitter.



    Click on the left picture for more screenshots.

    (June 15, 2014)

    LiIon USB charger.



    Click on the left picture for more screenshots.

    Android app on Google Play Android app on Amazon AppStore

    (Jan 28, 2014)

    NSCOM (was BNSCP) - (N)etwork and (S)erial (C)ommunication Tool version 0.3

    Offline User Guide available here

    Click on the left picture for more screenshots.


    Android app on Google Play Android app on Amazon AppStore

    (Feb 1, 2013) - obsolete

    Ham Radio Deluxe IP Server tester version 0.2.

    Offline User Guide available here

    Click on the left picture for more screenshots.


    (May 26, 2012)

    miniVNA Bluetooth interface version 1.0

    with full wireless operation .

    miniVNA Bluetooth interface version 2.0 (YO3IDN)

    Click on the left picture for more screenshots.


    (Apr 25, 2012)

    Portable and foldable Magnetic Loop antenna

    with remote tunning through the coax cable.

    Click on the left picture for more screenshots.


    (Jan 5, 2012)

    FT-8x7 DIY Bluetooth-CAT micro-miniature interface


    (Dec 4th, 2011)

    FT-817(ND)/FT-857/FT-897 DIY Data Modes miniature USB interface version 2



    (Nov 17th, 2011)

    FT-817 DIY Data Modes miniature USB interface

    only 40mm x 35mm x 20mm

    (Usually available 24/7) - experimental

    My WebSDR servers:

    - in Bucharest (KN34bk) for 80m/40m/30m/20m bands
    - in Bucharest (KN34bk) for 11m /2m/70cm bands (RTLSDR based)
    - in Breaza, 100km North of Bucharest (KN25te) for 80/40m bands



    (Nov 14, 2011)

    DIAX Windows Softphone>

    a full featured Windows Software Phone based on IAX2 protocol.

    (2006)

    InfraX version 1.7.0

    Infrared Remote Manager

    (2009,2015)

    SPCA version 1.2

    Serial Port Communication Analyzer
    - fixed a bug in baudrate setting in transparent mode
    - Updated contact data in the Help menu

    (sporadic updates)

    My QRZ page

    where you can find some more info about my HAM working conditions.

    Please click on the envelope to send me a mail.
    Latest update on Aug 10, 2018