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.

Details
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:

Details
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. 

 

Details
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.

Details
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.

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Kategorie: RF Powermeter

FM bandstop

RF preamp

 

Details
Kategorie: SDR

  1. IoT - Setup Raspi 3 for nodeRED & InfluxDB
  2. IoT - ESP8266 & Arduino
  3. Weinschel 40dB fixed high power coaxial attenuator
  4. Chinese DC-Block
  5. Huber&Suhner 30dB pad SMA
  6. Computergesteuerte HF-Eichleitung
  7. RF Powermeter - First steps
  8. WSPR - last spots
  9. KiwiSDR - configuration
  10. WSPR - WSPRlite
  11. Audio CW-Filter NM0S/4SQRP
  12. KiwiSDR - first impressions
  13. WSPR - Drift problems & new synthesizer board
  14. WSRP - 2nd U3s finished
  15. KiwiSDR - Local SDR up and running
  16. Powermeter von DG7XO
  17. WSPR - QRP-Labs low pass filters
  18. WSPR - QRP-Labs U3S signal quality
  19. WSPR - QRP-Labs U3S
  20. WSPR - QRP-Labs U3S bad power supply
  21. RF Powermeter - Firmware 1.8.1
  22. RF Powermeter - Unstable reading - Reloaded
  23. hamware AT-515 Firmware
  24. hamware AT-615B Firmware
  25. hamware AT-502 Firmware - Erweiterung für 160m und 80m
  26. hamware AT-502 Firmware - Update CI-V Schnittstelle
  27. hamware AT-502 Firmware - IRB P02
  28. hamware AT-502 Firmware - K2+RUMLOG
  29. hamware AT-502 Firmware - Kenwood erweitert
  30. GPSDO - Distribution Amplifier

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

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