last revision: 28 July 2009
RadioActive 2009
- July 2009 : The Sporadic E Season was successful so far
with working a number of new countries on 6m and my ODX on
144MHz with EA8AVI on the Canary Islands with almost 3600km in
a 2-hop Es contact. I have installed a weblog or blog for my
"activities" which can be accessed here: http://www.df9cy.de/serendipity
- April 2009 : After long and severe illness I became active
again. I had to do a number of repairs to the antenna
system.
RadioActive 2008
- until December 2008 : I made a number of EME contacts on
144 MHz (reached 80 stations now). The antenna is working
well.
- May 2008 : First time in a VHF/UHF contest (3./4. May)
with the new antenna system. Also worked FSK441 Meteorscatter
again after a long time. Finally on 17 May I got the new
antenna system working with a big antenna on 6m and vertical
rotator added on 2m.
- April 2008 : Experimenting with the digital mode MEPT_JT
of the WSPR software by K1JT. Some sort of fun ... New
antennas for 70cm built.
- March 2008 : QRV again ! All antennas are up and working.
There are some minor problems, but they will be solved soon
!
- February 2008 : ARRL DX CW contest with 53 QSOs. Now the
40m dipole will be taken down and the new VHF system will go
up on to the tower.
RadioActive 2007
- November 2007 : 180 QSOs in CQWW DX CW contest on
40m with 6 hours being QRV. All the antennas for 6m,
2m and 70cm are ready, but I will put them up next
year in early spring. Until then I will be on 40m
only, because after the VHF antennas are mounted, the
40m antenna will be up significantly lower.
- October 2007 : I fixed all mounting hardware of
the tower. I built a new monoband dipole antenna for
40m which works very well now.
- September 2007 : Things went slow - now the new
tower IS up. I put a 40m antenna over the top. It is
not working very well.
- May 2007 : The new Softrock v6.1 40m/80m software
defined radio transceiver is working. A fine
project.
- April 2007 : Put up an 'emergency' antenna (4ele
at 7.5m)for 6m - which gave me many DX contacts also
to the U.S.A. and Carribean over the summer
time.
RadioActive 2006
- November 2006: QRV again with a small indoor
antenna on 80m. New Tower arrived !
- October 2006: New Keyer built which replaces my
27 years old one and SOFTROCK 6.1 a Software defined
Radio is working fine.
- September 2006: All antennas are down - Tower is
sold.
- August 2006: Already made many more QSOs than in
the years before.
- July 2006: put up a vertical for 40m ...
- April 2006: worked Station #60 on 144 MHz
EME
RadioActive 2003/2004/2005
- I installed a NOAA 137 MHz Weather satellite
system which works fine.
- The vertical rotator is up and improved the
station much.
- The EME 2004 contest from DL0SHF was very
successful: 5th place !
- March 2005: One year of 144 MHz QRP EME !
- January 2005: worked Station #20 with my 9 ele
and 350w
- EME Contest Fall 2004 from DL0SHF
- 21 March 2004: First 144 MHz EME contact random
with I2FAK (JT65B Mode)
- 14 March 2004: Changed antennas and have the
DK7ZB 9 Element for 144 MHz up.
- 17 February 2004: Antennas are down.
RadioActive 2003
- December 2003: First successful WSJT (FSK441)
Contacts on 144 MHz with only 45W.
- October/November 2003: EME Contest on 2.3 GHz and
10 GHz at DL0SHF after long time of absence from
moonbouncing.
- August 2003: Design of DRM demonstration
receiver
- July 2003: Starting experimental DRM reception on
AM radio bands
- July 2003: First time checked 144 MHz in
NAC.
- June 2003: After 10 years back on 2m and copied
strong 144 MHz Es signals.
- May 2003: Antennas are up and working fine for 50
MHz and 144 MHz.
- May 2003: I have a transceiver for 144/432MHz
again (IC820H)
- April 2003: Antennas down for telescopic tower
repair.
- Slow activity only on 28 and 50 MHz because of
heavy work load and two children - yes :-)
Radio - active 2000
- 19 June : DXCC Country no 100
worked on the Magic Band.
- 18 June : Celebrate 25 years of
radio activity.
- April : Things return to normal
and I can be active again from time to time.
- January 2000 : Activity must calm down due
to number of problems to be solved.
Radio - active 1999
- 1999 : High Activity on 28 and 50 MHz ...
8 Antennas for 432 MHz Moonbounce are ready !
- 1 December 1999: Loss of the computer log
of 1999 including the backup. 95% could be
restored.
- 30./31. October 1999 : CQWW SSB Contest -
325 QSOs on 28 MHz
- 20./21. February 1999 : ARRL CW Contest on
28 MHz (part time only with 200 QSOs)
- 10. January 1999 : 2 hour DARC 10m Contest
: 50 QSOs in 2*CW
Radio - active 1998
- 12/13 December 1998 : ARRL 10m
CW : 116 QSOs on 28 MHz with the 3 element in a 2
hours.
- 28/29 November 1998 : CQWW CW :
848 QSOs on 28 MHz with the 8 element with 106
countries and over 268000 pts.
- 9 November 1998 : First contacts
with my new antenna at home on 28 and 50 MHz
(Aurora)
- 25 October 1998 : 4 Hours in
CQWW give 175 QSOs in 64 countries on 28 MHz
- 24 October 1998 : INTERRADIO HAM
Meeting in Hannover.
- 7 August 1998 : The Big new
antenna for 28 MHz is up.
- 7./8. March 1998 : 153 QSOs on 144 MHz
giving 41000 pts.
- 14. February 1998 : GHz Convention in
Dorsten.
Radio - active 1997
- 29.30.. November 1997 : 165 QSOs with a
simple wire in CQWW CW contest.
- 15./16. November 1997 : 2nd Leg ARRL EME
contest with 8 more contacts.
- 1./2. November 1997 : Marconi Memorial 144
MHz CW Contest with 72299 points
- 28. October 1997 : QRV again in the new
home on shortwave.
- 19. October 1997 : First 13 EME QSOs on
144 MHz in EME ARRL Contest.
- September and October : Rebuilding the
antenna.
- 5. August 1997 : 144 MHz Nordic Activity
Contest with 80 contacts.
- 5./6. July 1997 : 144 MHz contest with the
new Contest PA. Made 57777 Points
- April 1997 : Closing down my station in
Krusendorf because of moving.
- April 1997 : Article on 4 over 4 element
for 50 MHz appears in FUNKAMATEUR
- 1./2. March 1997 : 144 MHz contest.
Position 33 of 284 entries
- 15. February 1997 : GHZ convention in
Dorsten
- Transverter project following DJ8ES for
144 MHz - on the way.
73 de Christoph DF9CY
Some highlights out of 30 years of amateur
radio activity
- 1975
first licensed as DB5YD
first homemade 2m FM transceiver
- 1976
2m SSB Meteorscatter
- 1979
general licence DF9CY
pioneer 144 MHz single yagi moonbounce contacts
- 1981
432 MHz moonbounce with all homemade station
- 1984
On all amateur bands from 160m to 3cm
- 1986
move from home JO41DV to Bielefeld JO42FA
VHF DX-pedition to Helgoland island
- 1987
Building and operating the UHF and SHF beacon
DB0UBI
- 1989
move to Krusendorf at the Baltic Sea near Kiel after
finishing university, QRV from JO54AL
- 1990
pioneer 432 MHz single yagi moonbounce contacts
50 MHz special licence, WAC on 50 MHz
- 1991
sucessful 432 MHz EME station with 4*24 element
antenna
See the complete log
file.
- 1994
EME conference in Goeteborg, Sweden
- 1995
starting moonbounce operation at DL0SHF
- 1996
constructing a "heavy duty" VHF station for contests
on a farm in JO54AL
leading the 50 MHz toplist in reknown "Funkamateur"
magazine
EME conference in Baltimore, U.S.A.
very successful 5th place in ARRL EME contest with
DL0SHF on 1296 MHz
- 1997
move to new home in Schwedeneck, JO54AL
QRV via EME on 144 MHz and 432 MHz again from the
farmyard.