20251027 HB9CVQ on 30m band CW !!
HB9CVQ  SwitzerlandAndy (Diethard) Hansen 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
Many thanks Andy san ... ur sig is nice. I can easy read.
//////////////////////////////////////////////////////////
Contents: Click grey underlayer link buttons to jump to topics. Therefore, avoid excessive scrolling.
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 )
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?
- 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 !!!!
to be contineu
Please visit to his QRZ.com page
No comments:
Post a Comment