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home QRZCQ - The database for radio hams 
2024-07-19 06:31:22 UTC









Active premium user

activity index: 5 of 5

Hartmut Luedtke

25421 Pinneberg
Germany, Schleswig-Holstein

image of db6ll

Call data

Last update:2023-06-26 17:27:28
QTH:near Hamburg
Main prefix:DL
Federal state:Schleswig-Holstein
DXCC Zone:230
ITU Zone:28
CQ Zone:14

Most used bands


Most used modes


QSL data

Last update:2017-04-12 21:54:59
German DOK:E15: Hamburg Pinneberg
Bureau QSL:YES
Direct QSL:YES


Hopefully, you are looking me up because you hear / see me on the air!



Please call me by my nickname Ham. I was born in 1961, licenced since 1976. I have made a radio break from 1981 till the beginning of 2012. Since 1987 I live in Pinneberg (JO43vp), near the capital city of Hamburg.

I'm married with three children. Since June 2021 I am a retired police officer (Police Hamburg) and my time is devoted to my wife Dagmar, my radio equippment and the wonderful amateur radio hobby, our camping site and our garden....
Before my occupation I made a technical study. On my work I had a lot to do with computers. I can handle measuring instruments and I know where a soldering iron gets hot. I am very curious and always want to understand how the things I use work.

If I answer your CQ-call in FT8, JT65 or JT9 please do not forget to send a "RRR" or , "RR73" otherwise our QSO is invalid. It is simple: No "RRR" or no "RR73", no QSL-Card.

And please, please do not be so rude and finish our QSO without 73! So much time you should have for our QSO.

Note, tip: If you use JTAlert from Laurie, VK3AMA, please click on "Receiving Text Messages" in the settings (Web Services). So you can receive text messages from other JTAlert-users (for example, from me :-) ).

Since July 23, 2022 I'm testing the VarAC mode. If you hear me in this mode, just connect and write to me. It's nice to make a small conversation in this still quite unknown mode.

Caravan camping in Barum in lower saxony, Locator JO53ei, is one of my other hobbies. Some times you can hear / see me portable from the campsite.

We already had a contact? Please feel free to call me again. Maybe you have a new antenna, maybe the current conditions are different. There is always a reason for a new qso :-)


I do not collect QSL cards anymore. But if you send me your QSL card, I would be happy to send you my QSL card.


Worked DXCCs:


Equipment right now:

- Main TRX: HF base station Yaesu FTDX101MP (yes, it's the homage edition to Sako Hasegawa :-) )
- NCC-2 Antenna Phasing System from DX Engineering (since Sept. 2022),
with a Boni-Whip as Active Wideband Antenna at the second antenna input
- homebrew Interface for FT8, JT65/JT9 and PSK
- Intel quad core PC with windows 10, much RAM and SSD, HRD, Digital Master 780 and JTDX and WSTJ-X
- Digital SWR/wattmeter to watch VSWR and output power
- ZS6BKW-Dipol, a computer optimized version of the G5RV multi band antenna for 80 - 12 meter, hung up in north-south direction (bad for Alaska, Hawaii and South Africa)
- MFJ-926B automatic antenna tuner for the ZS6BKW
- since 21 February 2019 I have a inverted vee full size dipol for 60m. An antenna I can recommend
- an 15-meters long vertical wire in a tree with the SG 230 automatic antenna tuner for 160, 80 & 60 meter. The ground system is poor (two earth rods plus a small radial field). Most of the transmitting power is converted into heat.
- an end-fed half-wave length antenna for 15 meters
- Sirio2000 5/8 lambda groundplane for 10 meter
- 6m / 4m dualband Moxon beam
- horizontal polarized omni directional high selective narrowband halo-antenna for 6 meter

- Alinco DR-605 for 144 MHz and 433 MHz
- Diamond X300 vertical dualband base antenna

- for the campsite: HF base station Yaesu FTDX10
- noiseless 20 amp switching power supply
- TinyGate Interface for the digital modes
- 5/8 vertical for 10m *new*
- 5,10 meter long vertical antenna with 9:1 UnUn
- shorten Kelemen dipol DPK-60 for 60m
- full size Kelemen dipol DP-60 for 60m *new*
- PAC-12 (JPC-12), a multi band GP from 5.3 MHz to 50 MHz *new*
- Bazooka dipol for 40 meter
- Bazooka dipol for 20 meter
- sometimes: an end-fed dipol for 15 meter.

QRZCQ Awards

DXCC 250
ITU 70
CQ 40
IOTA 200

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