Saturday, November 1, 2025

20251017 DK7LX on 10m band CW !!

20251017 DK7LX on 10m band CW !!

DK7LX

Germany

Georg K
P.O.BOX 1114
Hüttenberg 35620
Germany

QSL: See details further down this page

Email: Use mouse to view..

Ham Member Lookups: 133974

20251017 0857UTC 28028kHz CW DK7LX

JJ5IZX_Mako · 20251017 0856UTC 28028kHz CW DK7LX

Date : 17/Oct/2025 08:57UTC

Freq : 28028kHz CW

Rig : ICOM IC-7200

ANT : LongWire (abt 20m)

PC recording(Microsoft Surface Laptop)

Many Thanks Gerge san.. Cu Agn 73`s : )

/////////////////////////////////////////////////////////////////

On air since 1983

Are you calling me? Please use my call sign if you answer my CQ call!
If you call me for windle-points only in regular terms and never else, safe our both´s time! I don´t join that nonsense.
Sending a "?" to find out who was calling is complete crap! Wait and copy the call-sign! Doing so is actually not just unprof but also rude!
QRP is waste of time. I prefer arm-chair communication if conds permit.
You like FT8? I don´t!

DK7LX has been active as/from:

CT9DLH, Madeira (2002)
CT8/DK7LX, Azores (2012)
A43DLH, Oman (2008)
ZS/DK7LX, South Africa (2004)
9X0LX, Rwanda (2010)
S92LX, Sao Tomé (2009)
XX9TLX (2 times) (2001, 2010)
TX7LX, Mayotte /2008)
4S7LXG, Sri Lanka (2014)
VP5/G3SWH, Grand Turk (2014)
FJ/DK7LX, St. Barth (2013)
VP9/DK7LX (several times), Bermuda (2005, 2017, 2018)
FP/DK7LX, St. Pierre & Miquelon (2018, 2023)
H44G, Solomon Is. (2013)
3XY1D, Guinee Rep. (2011)
KH6/DK7LX, Hawaii (2006)
K7LXX/5, AR (2014)
TF/DK7LX, Iceland (2013, 2022)
as well as from HA, OE, OM, HB0, I, G, GJ, F, German Islands

Following is a part of my QSL-history.

Please note: I do no longer answer SWL-Reports. Too much fraud thanks to cluster networks

Logs of past activations are closed!

QRZdesign-2018

Friday, October 31, 2025

20251031 Today is My birthday = Halloween : )

20251031 Today is My birthday = Halloween : )

JJ5IZX Mako`s birthday 73

20251028 FW5K (Wallis and Futuna Islands) on 10m band CW !!

20251028 FW5K (Wallis and Futuna Islands) on 10m band CW !!

FW5K

Wallis and Futuna Islands

Marc D Willis
BP 582 MATA UTU
UVEA 98600
Wallis and Futuna Islands

QSL: clublog OQRS

Email: Use mouse to view..

Page managed by NC7M Lookups: 122709

20251028 2211UTC 28025kHz CW FW5K

JJ5IZX_Mako · 20251028 2211UTC 28025kHz CW FW5K

Date : 28/Oct/2025 22:11UTC

Freq : 28025kHz CW

Rig : ICOM IC-7200

ANT : LongWire (abt 20m)

PC recording(Microsoft Surface Laptop)

I got him on 10m band CW... Now 10-12-17m band OK

I need 15-20-30-40m CW.. : )

////////////////////////////////////////////////////////

Welcome to Wallis Island DXPedition OC-054, Grid AH-16 put on by the DX Obsessed Group.

Update 27-October-2025

OQRS has been restored. Please follow the instructions in OQRS for online and direct QSLing. Thank you to all who informed us of the QSL services not working properly. See you in the pile ups. Marc FW5K

Update 26-October-2025

We have temporarily disabled clublog OQRS due to a isssue with PayPal As soon as the issue with PayPal is resolved we will update this space and reenable the QSL service.

73 Marc NC7M FW5K

Dates of Operation 19-October-2025 thru 31-October-2025. We land on 18-October, but we will have travelled for nearly 20 hours. We will take a rest period and be up and running soon after. We will represent Wallis and Futuna Islands in the CQWW SSB Contest

Please check our website dxobsessed.org for updates, operating frequncies and daily journal entries. We will be operating 24/7 once we are up and running. Look for us on 6, 10, 12, 15, 18, 20, 30, 40, 60, 80 and 160 meters.

Operators:

Alex K6VHF CW SSB FT8

Dave KA6BIM CW SSB FT8 RTTY

Hannah W7HER SSB FT8 RTTY

Marc NC7M Team Leader CW SSB FT8 RTTY

OC NG7E Team Leader SSB FT8 RTTY

Scott N7JI CW SSB FT8 RTTY

Sponsors: Thank you for your support!

SunSDR - Radios

ACOM - Amplifiers

BuddiPole - Antennas

4O3A - Triplexer

Northern California DX Foundation - Youth Grant Program

Willamette Valley DX Club - DXPedition Funding Program

Many individual Amateurs Radio Operators around the globe - Thank you for your financial support.

QSL Information - We will upload to ClubLog Daily

Please see ClubLog OQRS. This is the preferred method due to the volume of QSL requests.

NO BUREAU CARDS - It is to expensive due to the sheer volume of QSL request we receive. Thank you for understanding.

Complete LOTW upload after 9 months at the latest.

Modes :

CW, SSB, RTTY, FT8/4

Please check this space and our website for updates.

Please check the website for details and operating frequencies DX Obsessed Group

Thank you, See you in the pile-ups.

Update 21October2025

"All FW5K logs were uploaded to Clublog. Please check all QSOs before attempt working is again and crating dupes. The internet is slow with many interruptions, so not all QSOs are uploading immediately. Please allow 24hrs to update logs and check Clublog. EU is priority to FW5K and we will try to operate on low bands in most convenient time as possible. 73, FW5K team "

DX Obsessed Group Team FW5K

Thursday, October 30, 2025

20251027 HB9CVQ on 30m band CW !!

20251027 HB9CVQ on 30m band CW !!

HB9CVQ

Switzerland

Andy (Diethard) Hansen
Bahnhofstrasse 39 (P.O. Box 528)
Berikon, AG ,CH-8965
Switzerland

QSL: No paper-QSL cards, no bureau, only LOTW/EQSL

Email: Use mouse to view..

Ham Member Lookups: 493322

20251027 2217UTC 10117.5kHz CW HB9CVQ

JJ5IZX_Mako · 20251027 2217UTC 10117 5 kHz CW HB9CVQ

Date : 27/Oct/2025 22:17UTC

Freq : 10117.5kHz CW

Rig : ICOM IC-7200

ANT : LongWire (abt 20m)

PC recording(Microsoft Surface Laptop)

Many thanks Andy san ... ur sig is nice. I can easy read.

//////////////////////////////////////////////////////////

tnx for visiting folks

Contents: Click grey underlayer link buttons to jump to topics. Therefore, avoid excessive scrolling.

1. Breaking News

1.1 HF-Propagation Info

2. Research and Development Project: HAM HF-mobile Antenna Experiments (+EM-Simulations)

3. General Info, Home-QTH , HF-Station Equipment and Operating

4. Tech-Blog ( March 2009 till today )

K3S vs. FTDX101MP

HF-PA-LDMOS-RF2K-S

SteppIR-DB18E-Failure-Analysis

5. Ugly, illegal, unethical stuff: (80-40)m D-QRMing by a small LID-OP Group, causing deliberately QRM, jamming QRGs and misusing/faking Call Signs

--------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Some current data of Space Weather and HF propagation (EU Ionosondes):

NE DL current Ionosonde Plot CZ current Ionosonde Plot ON current Ionosonde Plot Rome (IT) current Ionosonde Plot

US Boulder Co MUF Data NOAA D-Layer ABSORPTION How good are the low HF bands?

1. Breaking-News

September 2025: FYI: Intesersting Video YouTube from 11 Jan. 2024 (US, Dayton OH ) on HAARP (The High Frequency Active Auroral Research Program by Chef Eng. Steve Floyd (W4YHD): Facility in Alaska covers DC to Light, focus on HF 2.6MHz to 10MHz with 180 Cross Broadband Dipole Array, each 10kW TX and 5GW ERP. Low Frequency Modulation can stimulate ionospheric effects down to extremly low frequencies for research.

https://www.youtube.com/watch?v=7peh2Z6E3A0

August 2025: We will hopefully soon publish (submitted to major EMC Symposium EU):
"TEMPEST (UHF RX Spurs) remotely trigger wireless HF-IEMI Attack on a tuned commercial HF-Receiver"
Abstract: A bizarre and complex, malicious shortwave (HF) - Jamming (DQRM, IEMI) attack scenario got TEMPEST/COMSEC/EMSEC analyzed. Our 4 selected commercial Amateur Radio Transceivers (TRX) are all EU CE-RED compliant. These high-class models are 3x K3S Elecraft USA, 1x FTDX101MP YAESU, Japan. Conducted Receiver (RX) Antenna Port-Emissions (ETSI limit -57dBm, 50Ohm) were measured from 150kHz to 1GHz. The actual, most relevant, internally generated HF-VFO/Synthesizer UHF/VHF and HF Spurious RX Ant. Port Emissions (weak signals) are identified in frequency groups and amplitude. A clear correlation of HF-VFO (HF-communication channel) frequency setting and following tracking UHF Spurs, a potential info leakage, is demonstrated. UHF/VHF/HF Signal propagation with path loss estimation, in the nearby HB9CVQ author’s radio installation environment, was experimentally/theoretically checked. The unknown, temporary HF-Jammer location was estimated to be between 50 to 300m, in roughly northern direction. In a commercial/military scenario, however, VFO-setting, by recovery from information leakage, could have much more critical consequences
June 2025: IARU Reg.1 HF CW-Fielday under HB9AW/p supported as CW-OP. Switzerland#1, EU#2.
Portable, multi operator, high power, assiisted: 1. S59BCC/p 1288 QSO, 227 Multi, 816065 Score, 2. HB9AW/p 1053 QSO, 214 Multi, 631086 Score
March 2025: Swiss Telecom Authorities (BAKOM) DQRM investigation terminated with somehow limited success. Various Legal Investigations/Actions against DQRM Suspect starting. Time will tell.
February 2025: Received my CQ WW 2024 certificate CW QRP 10m
CQ WW 2024 QRP CW Cerificate
November 2024: My claimed score CQ WW CW 2024 as QRP (5W), SO assisted , SB 10m -- World#10 (11final), EU#4 (5 final), HB9#1 (1 final)-->final score 76,464 points

My Contesting over last 20 Years: http://3830scores.com/findcall.php

May 2024: Special Research and Development Project: Efficiency of small HF-vehicular Antennas e.g. for emergency communications in disaster areas. Scientific contribution/paper:
E-Book: Proceedings EMV (EMC) Symposium and Exhibition 2024, Mesago, Cologne, Germany 12/13/14 March 2024, page 163 to 170
"Can Ground-Wave Tests help determine electrically small, vehicular, HF-Mobile Antenna Radiation Efficiency?" HF Ground-Wave , 2024 Paper Download
March 2024: HB9CVQ a D-QRMing Victim-->The Swiss Telecom Authorities (BAKOM) are now officially investigating technically (monitoring/direction finding, etc.), in great detail, about my malicious, complex interference case! BAKOM: Auftrag - Störungsbehebung Nr: 1000504583
Oct./Nov. 2023: Want to know more ( prof. research) about local QRM (Man Made Electromag. Noise, EMI)? > > PA0KDF's Ph.D. Thesis Oct. 2023: Comulation of man-made radio noise... 106MB
PA0KDF 5MHz EMI Research System/Results , DARC EMI Nationwide Monitoring System: DL++ Electrical Noise Area Monitoring System (Video in German) , https://www.enams.de/ (DARC all using ITU compatible metrology, a small vertical, active GP slightly above the ground) Data presentation (Diagramm Auswertung) daily for mainly DL, but also some ON, F, UK, Swiss, USA and ZL locations.
My comments: Very good and important works mapping Noise in 2D. The next step should be 3 dimensional mapping (drones). Assuming roughly avg. -40dBi (+/- 15dB) antenna gain by house LV installations, there is probably a vertical radiation pattern that matters.

Sept. 2023: CWops Newsletter publication--IEEE EMC-Professionals with HAM license survey, update on EV-Fiat 500E automobile with 40m ant. installation successful car denoising HB9CVQ CWops Sept.-2023-NL p 16 ff

June 2023: HAM Radio 2023, DARC FN Germany, Saturday, 24. June/2023, Tutorial-Talk: 16:00 to 18:00 (local) Room A2-A

Measuring radiation efficiency of electrically small, automotive-on the move, short-wave antennas,

including lessons learned for restricted space antenna (160/80/40m) optimization.

Dr. Diethard (Andy) Hansen (Ph.D.) HB9CVQ, DK2VQ, AK4IG

Advanced Presentation Slide (63 pages PDF) Download The idea here is to help potential participants to decide/master/profit maximally from this "Crash Course".

The slides serve only as a navigator through the talk, being not comprehensive without listening. In the session we can increasingly elucidate "why" and "how (DIY)". On-site discussions may include very latest research findings.

Structure/Topics:

There are direct implications of this, aside from Military/ Special-Forces/ Government, in mobile HAM RADIO and NGOs. Humanitarian-medical-technical crisis-relief organizations, with mission critical emergency communication needs, possibly in remote disaster areas, may also profit from our practical R&D.

Motivation, Background, R&D Project Goals
State of the Art in HAM RADIO and Commercial +(Mil) ESA (Electrically Small Antennas)
Some Basic underlaying EM-Physics/Theory of ESA (Verticals, Loops)
Methods of Testing Antenna Radiation-Efficiency, go/no-go Metrology.
Need for Professional Simulations (Model: interaction Car, Tires, ESA, Soil, etc.)
Creating 160/80/40m ESA Reference-Antennas, comparing Simulation and Testing
Absolute “Gain” comparison by means of predictable Reference-Antennas (using EM-Simulations)
Experimental Radiation -Efficiency Antenna-Comparison (commercial/homemade -ant. ranking)
Resulting Antenna-Efficiency impacting factors (soil on low bands, elevation angle, design etc.) Conclusions, Project Outlook (future R&D topics), open Literature

May 2023: The Northern California DX Foundation (NCDXF) recognizes the negative impact deliberate QRM (DQRM) is having on our hobby. Fight against D-QRM -finally with 100 k$ US Grant !!!!