|Recent changes on this homepage. Only for very curious
Summer - Autumn 2004:
Severe problems at my main site at qsl.net (no, I won't complain,
its a free service). But to make downloads a bit faster and reliable, two
"backup" sites at AOL and FREENET have been put up.
March 2002, 2003:
Spectrum Lab still growing. Added new links for the PIC keyer documentation.
New Spectrum Lab with phase meter and PSK31 "raw keying" output. Should now
run under Windoze XP. The SmallPort utility by A.Weitzman now also used in
the PIC programmer to make it run under XP.
Spectrum Lab V1.7 with stereo capabilities, PIC programmer supports new devices,
Latest Release of SpectrumLab is V1.64. Avoiding the short name SpecLab
now, because someone else decided to call his program "SpecLab" (meanwhile
there are many Audio Analyzers out there, and we are running short of names
Development of a 'DLL interface' which shall simplify the task of implementing
new digital communication modes without having to mess around with the WinAPI
November 2000 - January 2001:
Improved versions of the audio spectrum analyzer (now called Spectrum Lab).
Improved preselector for 136kHz now using CF300 (GaAs-FETs).
Changed the software archives, added a simple PIC programmer for WIN95.
Added the software download page (with audio spectrum analyzer description).
Heavy QRN on 136kHz gave me more time to update the homepages.... so added
the schematics of the LF-preselector, also available as EAGLE-file (still
Added some photos and a short description of a linear transverter
for 136kHz. A few circuit diagrams will follow.
PIC Keyer project: Added a "beacon"-mode and possibly some other "goodies".
Minor modifications of the firmware (new HEX and ASM-files available). A
nice article from Göran (SM5AWU) with a translation of the keyer manual
appeared in the Swedish QST magazine Nr.3, 2000, page 6 to 8.
Happy new year ! I Added a few links (for 136kHz information), changed the
description of the PIC-keyer (tnx Stefan, OM8CD) and created a foto page
of the club station DF0WD.
Source-Code of the PIC-Keyer and EAGLE-Files for the Keyer now included somewhere
on these pages.
Used a new HTML-editor which told me my pages were not HTML-compatible. Changed
the layout of some pages. And: found out, that the server uses case-sensitive
filenames. Therefore all file names are now written in lower case. Grumble...