In search for a suitable pre-amplifier for the SG-Labs PA V3 I was pointed by a fellow ham to this amplifier on Amazon for abt.€17,-

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Kategorie: Satellite

Die Orignal-Firmware des Steuergeräts des HAMWARE Tuners AT-502 hat eine Funktion eingebaut, welche an Hand eines gesendeten Trägers versucht die aktuelle Arbeitsfrequenz zu ermitteln und den dazu passenden Speicher auszuwählen.

Dies funktioniert bei CW relativ gut, im SSB Betrieb ist dieses Verfahren nicht optimal. Der größte Nachteil meiner Ansicht nach ist aber, dass man zuerst einer Träger senden muss, damit die Frequenz eingestellt wird.

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Kategorie: hamware

I've developed a small interface board for the HAMWARe controller AT-502, AT-515 and AT-651B. This interface boards supports RS232 and CI-V communications and can be directly mounted into the controller chassis.

DSCF2112 DSCF4106 DSCF4108 DSCF4109 DSCF4112

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Kategorie: hamware

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

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 this post I describe in details, how you can create the calibration factors for k0 ... k3 based on raw data measured with the power sensor.

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Kategorie: RF Powermeter

With the firmware version 1.8.1 there are some minor enhancements:

  • Offset value is displayed on main screen. "O" at the end of the unit is removed
  • Waveform display also correct when offset is enabled

Here are the required files:

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Kategorie: RF Powermeter

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

CobWeb from eBay

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Kategorie: Antennen

  1. New boy in town - QCX-mini
  2. CW-Sensor-Keyer reloaded
  3. RF Powermeter - Uploading HMI file
  4. RF Powermeter - Updated display files
  5. SOTA - equipment weight list
  6. Yaesu FT-818 - Modification MIC MH-31
  7. Power usage ...
  8. hamware - FT-991A Unterstützung
  9. 2-tone generator - FA-2-NF etc.
  10. hamware - FT890 Unterstützung
  11. hamware - FTDX-5000 Unterstützung
  12. Sale
  13. IoT - REDIS server as docker@Synlogy
  14. Docker@Syno::Portainer
  15. IoT - Tasmota - TH16
  16. NOAA received @ JN48OQ
  17. Es'Hail - new pre-amplifier
  18. IoT - Air quality sensor
  19. Es'Hail - my current setup
  20. Contesting
  21. Bodnar GPSDO - 10MHz Low-Pass Filer
  22. LimeSDR - Housing
  23. LimeSDR - Measurements
  24. Es'hail - WLAN Grid antenna
  25. JackYack - simple memory morse keyer
  26. SSTV from ISS during February 2019
  27. Docker@Syno::InfluxDB
  28. Raspberry Pi Logbook
  29. Setting up mail on an RPi to an SMTP host
  30. Weather satellites reception - first steps on Linux

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

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