May 2012: The new envelope-demodulation circuit and the new product detector of the HGCR2010 are now ready.
Jan. - Mar. 2012: The HGCR2010 units are changed to IF2 of 5 MHz.
Dec. 2011: The new IF is 5 MHz with quartz ladder filters. Other units must be changed.
Oct/Nov. 2011: I planed a new second IF with quartz filters because the ceramic filters are not satisfactory.
Sept. 2011: Now the Basic Version of the HGCR2010 is ready with the exception of the AGC circuit.
June 2011: Work in progress with HGCR2010 Demodulation unit.
Mar. 2011: Now I work in the 455 kHz signal path of the HGCR2010.
Jan. 2011: I tested a new 45 MHz IF-Amplifier for the HGCR2010. Not an easy item.
Dec. 2010: The HGCR2010 goes on, but It's not a weekend project ;-)
Nov. 2010: Now I am an "Old Man" with the callsign OE3HBW
Sep. 2010: Look at my newest Oldy (My TFK Condor)
May - Sep. 2010: The HGCR2010 goes on and between I built a LC-Meter/Frequency-Meter...
Jan. - May 2010: My homebrew General Coverage Receiver (HGCR2010) come into the world.
11. Jan. 2010: The EHW website goes on! More homebrew project reports follows..;-)
My free provider disconnect my server connection! My EHW website is now static with no new content...sorry! Also the messaging system is dead, all the mails are deleted and I lost all my eMail adresses!
In the meantime I experimented with a homebrew VLF RX and different mixers. Furthermore I planed a General Coverage Receiver.
Sep. 2008: Look at my new Oldy (My Rheinländer)
Jun. 2008: The programmable XO is ready.
Mar. 2008: A short break at the HDR-2007 project, but a small new programmable XO project.
Feb. 2008: ... and it goes on with the Audio AGC. Stay tuned.
Jan. 2008: The HDR-2007 Audio Filter is ready.
Dec. 2007: The HDR-2007 goes on with the Audio Roofing Filter (HPF + LPF).
Autumn 2007: The HDR-2007 goes on...stay tuned.
Summertime 2007: The new HDR-2007 project. Work in progress...
May 2007: The new HDR-2007 project. First impressions.
Mar. 2007: Look at my new Oldy (My Magnat)
Jan. 2007: Including of a breadcrumb navigation.
Summary of HDR-2005, plan for the HDR-2007
Nov. 2006: Relaunch of the EHW website. Description of other projects, my old radio collection, tubes and so on.
Many improvements of the HDR-2005 receiver and the first version of the EHW website.
First web pages with HDR-2005 Receiver content. A receiver based on a QSD (quadrature sampling detector), also known as "Tayloe Detector" - but it is not really the same. A very interesting receiver (transceiver) concept especially for homebrewers. I published schematics, photos, related links and so on.
Many other electronic projects, but not documented...
