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DL7JP Germany flag Germany

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QSL: BUREAU OR EQSL

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Ham Member Lookups: 6832

 

Hamnet phone: sip:3153705171@44.225.43.21

Thanks for your interest! QTH is Passau [BBC's h2g2, Wikipedia], a small town in eastern Bavaria, situated roughly where DL meets OK and OE5. Seen from another perspective, Passau is about mid way between Munich and Vienna.

My station is a moving target: Core TRXs are currently an Elecraft K3, the HPSDR boards, and a fabulous Kenwood TS830. Further, I use an IC 2820 in my car, primary use is APRS beaconing and an occasional DSTAR QSO.

The antenna system is modest, but the station benefits from free radiation in all directions since QTH is on a hill,abt 100m above the city centre of Passau; here's my antenna's view towards the North (away from Passau), overlooking parts of the Bavarian forrest:

The aerials themselves can hardly compete with this view: For the lower bands i use a simple 2 x 20 m wire dipole about 8m above ground, a few meters of 600 Ohm symmetric feed line connect to a remotely controlled symmetric tuner. 20 - 10 m is served with a shortened rotary dipole (2 x 3m) designed by Ewald DK2DB. I am not very active on VHF / UHF, so there just an obligatory vertical (X-30) for local QSOs and for repeaters and a tiny M2 Holoop.

Antennas

I am also in charge of DA0UP,  the station of the University of Passau.

Below is some information on earlier QTH, experiments, etc.


Shack in 2007: HPSDR Experiments when living in Hamburg JO43xo

I am a Computer Scientist by training, so my interests are of course centred around digital technology. I keep descending from the higher OSI-layers down to HF (not yet being grounded).

My station around 2006/7 in Hamburg is shown below: a mixture between "Amateur Radio in the Clouds" (based on the HPSDR boards) and an old Kenwood TS830:

Picture of the Shack


Occassionally I was indeed using the TS830, enjoying the contemplative procedure of tuning the rig: so much nicer than booting a PC Innocent.

For those interested in HPSDR: The boards can be obtained from TAPR in the US or from Gerd DJ6AY.

 

Summer 2009: HPSDR TRX completed, QTH now in JN68rn

I complemented the HPSDR boards above with Mercury and Penelope, packed all into an enclosure (Pandora) and added a few new components to turn the HPSDR into a fully-fledged TRX: A 10W PA (Design DL2EWN), an RX/TX Switch (by Gerd, DJ8AY), the HPSDR LPU, and a simple NF AMP based on a TDA2030:

Here's the front view of the TRX, which is now my primary rig:

What's next...? Well, still undecided, but I do not want to live without a Waterfall Display any more :-).

 

October 2009: SV9/DL7JP/P

I took along an IC 7000 and an MP-1 Vertical Antenna on a short trip to SV9; here's the first APRS record (300 Baud Packet on 10149,2 kHz, HF-gate was OE3XAR-4) to test the setup:

The /p station worked nicely, I made a few contacts on 17, 20 and 30m. I was in fact not aware that SV9 is "rare DX" in times of low sun spot activity :-), so I created a QSL card below for those who collect and needed SV9. If we had a contact, I will be glad to return this card via bureau:

Misc. Pointers

 

free counters

 

 

6186159 Last modified: 2015-07-16 00:22:25, 6542 bytes

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