DK5RK: Amateur Radio Hompage of Reinhard Krause-Rehberg

NNews

Talk at the Ham-Meeting in Garitz 2009: WSPR – Das Flüstern in der Ionosphäre (PDF-File in German)

Main Interest

Digital Modes (Pactor, PSK 31, ...)
in earlier times I liked DX'ing on short wave (about 260 DXCC countries worked)
home building of QRP equipment
Diploma hunting (List of my diplomas)
portable operation (up to now: OH2/Y24VH, TK/DL4HRT, HB0/DL4HRT, IA5/DK5RK, SM7/DK5RK, IS0/DK5RK)

Please listen to the Sound of digital Modes!

PSK31 RTTY AMTOR Pactor-I MFSK16 MT63 THROB Hellschreiben

My homebuilding Projects

My best homemade radio: DSW-20 by Small Wonder Labs	40m-TRX T40C (schematics, photo)	1-Transistor VXO TX for 40m (1W) see two photos: 1 & 2	Superkeyer II
Ten-Tec Transverter Kit 1210 (10m to 2m) see a photo	QRO low-pass filter fg=35 MHz (schematics, photo, deccription in pdf, see measured passband)	RF-noise generator for bandwidth measurement	My very first project: a multiband 1-V-2 (regenerative receiver) built in 1973

to be continued ...

Possible Future Projects

My Articles in Ham Magazines

Article about MFSK16 in Funkamateur 6/2001 in German (PDF-File 2.2 MB)
Article about the kit DSW-20 (Small Wonder Labs) in "QRP-Report" 3/2000 p. 10-15, in German (PDF-File 1.5 MB)
Article about PSK31 in "Funkamateur" 3/1999 p. 308, in German (PDF-File 323 kB)
Article about Sangean ATS-909 shortwave portable receiver in "Funkamateur" 1/1999, in German (PDF-File 910 kB)
Article about DXpedition to HB0 in CQ/DL
Article about the digital amateur radio modes and the use of the soundcard, CQ DL (Special Issue), 2002, in German (PDF-File 1,2 MB)

Membership

DARC (DOK W35)

DIG No. 4621

ARRL

G-QRP Club

DL-QRP-AG

QRP Amateur Radio Club International

Arbeitsgemeinschaft Amateurfunkfernsehen (AGAF) No. M2746

Important Events

My visit at Rashid (A71AN) in Doha (Qatar). Photos of Rashid at his station, of Rashid teaching young pupils, and of myself working as A71AN/DK5RK at Rashids station.

Hubert's garden party (photo of 4 OM's trying to erect the R7000 shortwave antenna)

Portable summer activity in Dermbach. There were good conditions to work the far east. Have a look for a typical log page of an 40m opening to JA!

Fieldday SSB 1996

IOTA-activity from the Island of Elba as IA5/DK5RK in September 1996

IOTA-activity from the Island of Öland as SM7/DK5RK in Summer 1997.

Clubstation of University Halle: DL0MLU (DARC OV W35 )

Our Ortsverband owns a Clubstation which is located in the very top of the tower of the Department of Physics in about 35m height over the ground Photo). See a photo of our station with Robert, DL4HRM, working in IARU contest 1996. We are running a TS-440S short wave transceiver and a HL 811 power amplifier (800 W PEP) made by Ameritron. Furthermore, we are using a 3-Element-3-Band Yagi and a 40 m rotary dipole. We have a 2-wire-fed 2x23 m dipole antenna for 80m and 160m. We have our own Internet access and a station for packet radio.

We are always looking for new members. Are you interested to visit us? Please have a look for our Home page - there you'll find all relevant information!

Some of my own QSL cards

List of my Diplomas

Communication Centre:

Private Address: Robert-Franz-Ring 2; D-06108 Halle; GERMANY
Phone & Fax: Phone at University (+49) 345- 55 25 567 or 570; Fax at University (+49) 345- 55 27 160; Phone private (+49) 345- 52 23 035; mail@DK5RK.de
Amateur-radio Packet Mailbox