Here you find a list of all my SOTA activations

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Kategorie: SOTA

In the German QRPForum someone mentioned a group of QPR enthusiasts QRPGuys. They have some neat QRP kits - transceivers as well as antenna-tuners.

I gave these kits a try: QRPGuys Portable Tri-Band Vertical Antenna and the QRPGuys 40m-10m UnUnTenna Plus   

This post deals with the second one - the QRPGuys 40m-10m UnUnTenna Plus.

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Kategorie: Antennen

In the German QRPForum someone mentioned a group of QPR enthusiasts QRPGuys. They have some neat QRP kits - transceivers as well as antenna-tuners.

I gave these kits a try: QRPGuys Portable Tri-Band Vertical Antenna and the QRPGuys 40m-10m UnUnTenna Plus   

This post deals with the first one - the QRPGuys Portable Tri-Band Vertical Antenna.

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Kategorie: Antennen

I've made a simple cheat sheet for my HamGadgets Ultra Picokeyer because it is hard to remember the various key sequences and abbreviations in the menu mode :-)

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Kategorie: Shack

With the firmware version 1.9.0 there are some minor enhancements:

  • Peak-hold works now, when offset is set
  • Meter and diagram works in dBm and W mode

Here are the required files:

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Kategorie: RF Powermeter

Our third SOTA activation for 2018 is done. Monika (DL6SCF), our daugther Lisa and I activated the Römerstein DM/BW-078. Beautiful weather, a little bit overcast and not too warm. The CONDX where better than last sunday. 

 

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Kategorie: SOTA

 Our second SOTA activation for 2018 is done. Monika (DL6SCF) and I activated the "Michelsberg" DM/BW-855. Beautiful weather - very sunny but not too warm. The CONDX where horrible. Deep QSB from S0 up to S9 from Spain und into the UK - very frustrating.

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Kategorie: SOTA

 The first SOTA activation for 2018 is done. Monika (DL6SCF) and I activated the "Kaltes Feld" DM/BW-659. 

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Kategorie: SOTA

As described here, I've build an RF Powermeter.

After aquiring an HF signal generator, a used HP 8647A, I started to do some testing regarding the precision of the RF powermeter.

Details
Kategorie: RF Powermeter

  1. Weather satellites reception - RTL-SDR optimization
  2. IoT - Setup Raspi 3 for nodeRED & InfluxDB
  3. IoT - ESP8266 & Arduino
  4. Weinschel 40dB fixed high power coaxial attenuator
  5. Chinese DC-Block
  6. Huber&Suhner 30dB pad SMA
  7. Computergesteuerte HF-Eichleitung
  8. RF Powermeter - First steps
  9. WSPR - last spots
  10. KiwiSDR - configuration
  11. WSPR - WSPRlite
  12. Audio CW-Filter NM0S/4SQRP
  13. KiwiSDR - first impressions
  14. WSPR - Drift problems & new synthesizer board
  15. WSRP - 2nd U3s finished
  16. KiwiSDR - Local SDR up and running
  17. RF Powermeter - Calibration basics
  18. Powermeter von DG7XO
  19. WSPR - QRP-Labs low pass filters
  20. WSPR - QRP-Labs U3S signal quality
  21. WSPR - QRP-Labs U3S
  22. WSPR - QRP-Labs U3S bad power supply
  23. RF Powermeter - Firmware 1.8.1
  24. RF Powermeter - Unstable reading - Reloaded
  25. hamware AT-515 Firmware
  26. hamware AT-502 - Neue Firmware
  27. hamware AT-615U Firmware
  28. hamware - FT890 Unterstützung
  29. hamware AT-615B Firmware
  30. hamware AT-502/AT-515/AT-615U Interface

2014 CW (Morse Telegraphy) was added to the German Nationwide Inventory of Intangible Cultural Heritage.

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