PC Software

• Spectrum Lab
• WOLF GUI
• Sound-Utilities
• Audio-I/O lib
• CalcEd
• WinPIC

PIC Projects

• QRP Keyer
• A/D converter
• Frequency Counter
• DCF77-sync'd
  oscillator

Radio Related

• Very old stuff
• Miss Mosquita

DL4YHF's Ham Radio Homepage

last modified in April 2008.

Main Site: freenet-homepage.de/dl4yhf 
Backup site, almost dead: www.qsl.net/dl4yhf 

Welcome to the homepage of DL4YHF ! This page provides some tools (software by myself), hardware, and other information for radio amateurs, and some other not-radio-related stuff like the PIC programmer. If you are curious to know who DL4YHF is, look here. If you look carefully enough, and you are a human visitor (not a robot), you will also find my email address and other details there.

On this site you can find:

PC Software

• Spectrum Lab - a tool for audio analysis, DSP, beacon logging, etc.
• WOLF GUI - a graphic user interface for Stewart Nelson's WOLF (Weak-signal Operation on Low Frequency)
• Sound-Utilities - read from the soundcard's ADC and send to DAC
• Audio I/O library - exchange audio in real time between different applications
• CalcEd - a text editor which calculates with complex numbers !
• PIC programmer - DL4YHF's WinPic for Win95+98+XP, uses LPT or COM1..4, and supports a variety of PIC microcontrollers.

PIC projects (firmware and documentation)

• A "low power" keyer with a PIC microcontroller
• A simple beacon controller for DB0UBI - programmed in "C" (download)
• A PIC-based analog-to-digital converter for the serial port
• Digital frequency counter with a PIC and 4..5 LED-digits for 0.0001...50 MHz
• DCF77-synchronized oscillator (under construction)

Miscellaneous

• QRP (low-power) radio equipment
• Old Ham Radio Stuff (collection of old projects, recently found in a dusted directory on my harddisk)
• An inductorless, image-cancelling, phasing exciter for LF (136 kHz band) using standard parts
• A list of all available EAGLE-Files (Schematics and Boards)
• Photos of DF0WD (club station)
• Photos from the LF meeting / Ham Radio 2003 in Friedrichshafen
• Other strange photos and odd experiments
• Longwave information (136 kHz)
• VLF Reception: Transmission from SAQ (Grimeton) 2006-12-24 08:00 UTC, 20 minute mp3 audio file.
  To detect the morse code "visually", click here (multi-strip spectrogram created with SpecLab).
• Radio Direction Finding on VLF
• Articles from longwave radio experimenters
• Screenshots of spectrograms of the experimental MW beacon DI2AG
• Amateur radio- and radio-related links (READ THE DISCLAIMER FIRST before following any link .. I am not responsible for anything outside my own webpage, even if I may have placed a link to it !)
• My own WWW bookmarks. Actually the bookmarks saved with Mozilla Firefox... did you know Firefox exports bookmarks as small HTML document ? Coool... but beware:
  Read the disclaimer first; and expect a lot of broken links in the bookmarks. But don't miss the "Tesla, Laser & Co"-stuff ;-)
• Who is DL4YHF ?

Recent changes:

• almost once a month: New release of Spectrum Lab

• January 2005: Because the connection to QSL.NET was utterly slow, changed the main site to freenet. QSL.NET remains as a "backup" only .

• June 2004: WinPic updated, now supports "JDM PIC-programmer 2".
  

More Changes on this homepage..

There will be more in future. Check again ! Until then,
73 and hope to meet you on the amateur radio bands ..

Wolfgang "Wolf" Büscher ( DL4YHF )

P.S: If you sent an email to me, but didn't get a response, then read this . You may be one of the fellows whose email provider has put my email provider on a blacklist (thanks to some paranoid spam filter), so I have received your message but cannot reply !

Legal stuff.. Read before following any link on these pages..

Haftungsausschluß / Disclaimer

Von diesen Seiten führen einige Links zu anderen Webseiten, die dem alleinigen Urheberrecht und der eigenverantwortlichen Kontrolle der jeweiligen Autoren unterliegen. Ich kann daher keine Verantwortung für den Inhalt der über diese Links angesteuerten Seiten übernehmen.
(Dieser Hinweis wurde aufgrund eines Gerichtsurteils aufgenommen, in dem der Autor einer Webseite für den Inhalt "fremder" Seiten verantwortlich gemacht wurde auf die man über Links auf seiner Seite gelangen konnte !!!)

There are some links from this website to other sites, which are under the sole control, copyright and responsibility of the authors of those pages. I am unable to take any responsibility for the content of web-sites that you reach through those hyperlinks.
(This note has been added because of a court decision where the author of a website was made responsible for the contents of "foreign" websites which could be reached via a link from his own page ! Consider this: Where will this end ? You add a link to a search engine on your website, and will be held responsible for the entire world wide web because it can be reached through a couple of clicks ? Oh, c'mon ...)