Oregon Hardware-Software Factory, LLC

Innovative Solutions for HF Digital Communications


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  1. Embedded Systems and DSP Consulting.

  2. If by chance you're looking for our personal photo albums ... its here.

  3. My Guitars and Music stuff is here: Guitars.

  4. Our Forrer (Furrer) family genealogy is here.

  5. A brief overview of HF channel simulation.
    HF Channel Simulation (includes Linux GPL version.)

  6. A Low-Cost HF Channel Simulator for Testing and Evaluating HF Digital Systems.
    Digital Communications Conference (24-26 September 1999, Phoenix, AZ.)
    Document in MS word format (Also in QEX May/June 2000).

  7. Low cost, real-time HF channel Simulator package.
    Please note this product is obsolete and no longer available.
    TMS320VC33 fp DSP, 20-bit audio (35K)
    Windows screenshot (23K)

    FLAT fading (single ray) 261K.
    GOOD, selective fading (2 rays) 261K.
    POOR, selective fading (2 rays) 261K.
    FLUTTER, extreme selective fading, polar flutter (2 rays) 261K.

  8. An overview of recent advancements in robust HF communications:
    Recent HF Communications Advancements.

  9. A DSP-based Audio Signal Processor:
    DSP Audio Processor Article.

  10. Using the Motorola DSP56002EVM for Amateur Radio Projects:
    DSP56002EVM Article.

  11. Programming a DSP Sound Card:
    Includes ADSP-2115 Linux assembler and LMS denoiser.
    DSP Soundcard Article.

  12. An Adaptive HF DSP Modem for 100 and 200 Baud:
    DSP Modem Article.

  13. Universal DSP Communications Processor (UDCP):
    AMTOR and Pactor I for the DSP56002EVM.

  14. My DSP-10 SDR project:
    DSP-10 project.

  15. 10GHz Weak-Signal experimentation:
    10GHz Weak-Signal, DSP-10 project.

  16. HP 8640B Restoration Project: Fixing the HP 8640 counter and other Restoration notes.
    HP 8640B restoration.

  17. ADSP-2181 EZKIT lite:
    C Programming tips for the ADSP-2181.

  18. GCC Applications for the Analog Devices Blackfin Processor:
    Tips for building GCC-based Apps for the BF532.

  19. Weather Satellite Imagery:
    Weather Satellites.

  20. Motorola DSP56002EVM Ham Radio code development package:
    EVM56K3.ZIP (dated materials).

  21. Q15X25 source code for the EVM56K.
    See the EVM56K3 package for an experimental DOS-based user interface for this M56K modem code.

    DSP and Embedded Systems Resource.

    E-mail gif jbforrer.nospam.johanforrer.net (replace .nospam. with @)

    Last updated February 3, 2009

    © Johan Forrer,1998-2009