Christmas 2009: A Merry Christmas and a Very prosperous New Year 2010 to all of you who are coming along here. See you again !

24 November 2009: Updates in the Sale section.

06 October 2009: Most changes have been on the radio pages. Some new software updates are on the software/download page now.

05 August 2009: The new RADIO SITE is working well. You will find new images of my antenna after preamplifier installation HERE.

21 July 2009: I have installed a new radio page on my website here experimentally. It is already working fine. First time using PHP and a blogging machine.

09 July 2009: Updated radio standings table and corrections with some links.

14 May 2009: More Lunar Images of some central regions from 1 May 2009.

26 April 2009: New images of the Moon and Saturn I made on 5 April 2009 are available now.

07 April 2009: I repaired several links to download files today.

13 March 2009: After long absence due to illness I updated some files today.

04 February 2009: My Mother died today rather suddenly at the age of nearly 85.

19 December 2008: Antenna Diagram Comparison of some Popular 432 MHz EME antennas. See under Technical Material.

28 October 2008: Some words about my Moonbounce History are written here now.

23 October 2008: Updated Radio logfiles.

Myself standing in front of an ancient JU52 bird...

20 September 2008: New article about 50 MHz Moonbounce reception at DF9CY and updated EME logfile for 2008.

20 August 2008: On the 16 August 2008 a partial lunar eclipse was well visible and I could take some images. See here : Partial Lunar Eclipse

01 August 2008: Good weather and the Partial Solar Eclipse was well visible.

21 July 2008: DX Station at DF9CY : Videos on YouTube

17 June 2008: Updated radio and moonbounce logfiles.

20 May 2008: The new antennas are up and working. Here are a number of images: DF9CY - ANTENNAS

30 April 2008: I have built a new antenna for 70cm. The description is here on my site now. 432 MHz 9 Element Yagi (DK7ZB Type)

21 April 2008: Something about "WSPR" experiments on the last weekend you will find here

7 April 2008: Again New Technical Material - EZNEC design files and some information on common-mode chokes are available now in the technical material section.

1 April 2008: New Technical Material - A new antenna design for a 11 element yagi for 432 MHz.

30 March 2008: All my antennas are up again and working. Here are some images of the new antenna system.

12 March 2008: I finished my 10/50 MHz transverter It is working fine. You find the description in the Technical Material section.

21 February 2008: Made some minor corrections on a number of pages. I ran some tests with my NOAA weather satellite receiver, which automatically updates the images on this site. The antenna is still "indoor", but has a GaAs Fet preamplifier now. Fog prevented me from observing the total lunar eclipse this morning, which was the last until 2015 ...

30 January 2008: Updated : Project_Auriga JAVA software package with new features is available now. Other files are also up to date again. See Software DOWNLOAD section ...

25 January 2008: Updated files in the Technical Material section with a new antenna design of a combined 10m/15 4+4 Element interlaced yagi antenna.

9 January 2008: My Folkband Harvey's Wake played in a music pub recently. I put some images on the site here.

7 January 2008: Happy New Year to everybody. Thanks for soooooo many visits here on this site in the last year. I just uploaded the 2007 Amateur Radio Logfile.

25 December 2007 : MERRY CHRISTMAS EVERYBODY !
I just uploaded an image of the Mars Occultation which happened on the morning of the 24 December 2007.

05 December 2007 : New and updated files in the Technical articles section.

29 November 2007 : CQWW CW results and other radio files uploaded. See DF9CY RADIO section.

21 November 2007 : Simulation of a several antennas for 7 MHz, 50 MHz and 432 MHz. See under Technical Articles.

12 October 2007 : 7 MHz wire dipole antenna design and simulation. ... and some corrections too.

04 October 2007 : 50 MHz antenna design of a 6 element long yagi uploaded. The antenna will be built soon. Updates to the radio pages too.

20 September 2007 : Project_Auriga (pa) Java software (see Download section) is updated now to the latest versions (Windows setup and Linux ZIP file).

19 September 2007 : I again changed the face of the site after "Simplify your life": I cut away some code making it loading even faster ... Some minor updates were made in the Folkmusic section.

22 August 2007 : A number of things are changed now. After almost 4 years I gave this page some new colours. The MyMusic pages are completely new with a lot of subsections now. With www.harveyswake.cpetermann.de you get direct access to the band I am playing in (at least to one of them ...). New images came on and a lot of old stuff is thrown out.

12 August 2007 : Being back from a tour by train through Germany I made some test images with my CMOS camera on some objects in the sky.

20 July 2007 : Update of the technical article on the ALccd5 CMOS camera.

16 July 2007 : First - Light with the ALccd5 Black/White camera: Venus at daylight and the Sun.

12 July 2007 : Noctilucent Clouds are fascinating. I have made a number of images on the 9 July 2007 and here is an animation too. Be careful it is 2 MByte!

05 July 2007 : A new image from the Moon - Venus occultation on 18 June 2007 and a technical project started with a 40m/30m + 6m SDR transceiver.

12 June 2007 : Technical articles on the ALccd5 CMOS camera and the SOFTROCK TXRX 6.1 Transceiver

9 June 2007 : First Light of a new camera (ALccd5). Here are Venus and Jupiter.

2 June 2007 : Images of a very "young moon" after sunset on the 17 May 2007

16 May 2007 : Article about Collimation of an INTES MK67 Maksutov Telescope

10 May 2007 : Update of the CY_DSLR_Timer program

7 May 2007 : Reorganized the Photography section. Most of my images you will find at

28 April 2007 : Images of the Sun and the Moon uploaded

27 April 2007 : In the DOWNLOAD section two new pieces of software are available: CYDSLRTimer for controlling digital cameras and DREAM_1.8.8_cvs(DF9CY) a DRM software receiver compilation.

24 April 2007 : Update in the Sale section

17 April 2007 : Image Collection of the "5.Aschberg Frühjahrstreffen (AFT)". This is a telescope party

14 April 2007 : Updates in the Sale section and new astro images

8 April 2007 : Another Saturn image from 6 April 2007

5 April 2007 : I am getting better with my Lunar images and a Saturn photos

22 March 2007 : First Light with my INTES MK67 Scope. Here are some new SATURN images and some collimation hints

7 February 2007 : Updated NIKON D70s and D70 camera noise tests

7 January 2007 : NIKON D70s camera noise tests evaluation

6 January 2007 : Comet McNaught and other new images in Astronomy Section

1 January 2007 : A small update ...

10 December 2006 : Telescope and Receiver for SALE

30 November 2006 : New images uploaded from a wonderful night ...

17 October 2006 : Images of Comet SWAN C/2006 M4 are here

10 October 2006 : A description of my "Softrock Version 6.1" SDR (Software Defined Radio)

24 September 2006 : Uploaded some new images in Astrophoto section.

12 September 2006 : Moon moving through the Plejads (M45)

08 September 2006 : New astro images of the 7 Sept lunar eclipse uploaded and some small corrections made

05 August 2006 : Changed the Amateur Radio DF9CY page

23/26 July 2006 : Some new (astro) images here and here

22 June 2006 : Optics for SALE and Again Updated Radio Logfiles after big number of QSOs

05 June 2006 : Updated Radio Logfiles

06 May 2006 : Image of the 73P/Schwassmann-Wachmann comet / B Fragment.

28 April 2006 : Images of the 73P/Schwassmann-Wachmann comet and the Sun.

01 April 2006 : Newton Telescope for SALE

20 March 2006 : Imaging a widefield around the Whirlpool Galaxy

13 March 2006 : Astroimages of Comet C/2006 A1 Pojmanski

05 March 2006 : New Astroimages in the 2006 collection

09 February 2006 : Radio Logfiles updated and new Astrophotos

12 January 2006 : Updated radio Logfiles, EME contacts and Standings of worked countries and grids.

11 December 2005: When active NOAA weather satellite images are uploaded HERE.

21 November 2005: New Mars and Moon images from 17 November here - the best ever I made.

20 November 2005: Updated EME logfile after some recent activity.

15 October 2005: New Mars images here.

08 October 2005: New images here and I made a fantastic EME contact with RN6BN with 25W into a 9 element on my side ! !

26 September 2005: Again outside and imaging Mars and Moon ... look here !

7 September 2005: I imaged Andromeda galaxy with the Nikon D70.

5 September 2005: A few new images are in Astro section (M27 and NGC7000).

5 July 2005: I made a number of new images. Some of these can be found in this collection in Astro section.

26 June 2005: New are some images of Noctilucent Clouds and the Mercury-Venus-Saturn Conjunction.

19 June 2005: I made the first images with the new refractor. Here is one of M57 Ring Nebula

14 June 2005: I have a new Refractor Telescope by Stellarvue. Therefore I made a small description in Astro-Section / Technical Material.

6 June 2005: Updated Sales page and Astronomy Equipment pages after long pause.

16 May 2005: I am back from some vacation and did some rework to the last Jupiter images. Also I updated the LINRAD page.

6 May 2005: Jupiter and Moon images from 21 April 2005

8 April 2005: M13 image with the NIKON D70 from 1 April 2005

29 March 2005: Some new sunset photographs in the Photography section.

29 March 2005: Updated DRM Demonstration Receiver Diagram in Technical Material section.