My Mosquita got a new housing as described in this post. As you can see, there is still enough room for a memory morse keyer.
Here some pictures of the recent SSTV transmission from ISS. They are received using a cheap SDR stick and the NOAA antenna from WIMO under the roof abt. 7m above ground. Decoding is done using MMSSTV.
I have some stuff for sale. Please contact me by Diese E-Mail-Adresse ist vor Spambots geschützt! Zur Anzeige muss JavaScript eingeschaltet sein! if you're interested. Prices are negotiable.
Here a short description how I set up my RPi to send mail, usually sent to the users mbox to an SMTP server.
Ich habe die Firmware für die Hamware Tuner um den Yaesu FTDX-5000 erweitert.
In Verbindung mit dem Logbuchprogramm Swisslog folgt der Tuner automatisch der eingestellten Frequenz.
Nähere Infos sind hier zu finden.
According to node-red cookbook all files in the .node-red subdirectory should be backuped - except files in "node-modules" sub-directory:
As a logical follow on I opted for a separate Diplexer for my Arrow antenna. I've choosen the WIMO Diplexer #22030.
The HAM RADIO 2018 in Friedrichshafen brought me a new antenna - the Arrow Antennas 146/437-10BP - I plan to use it for SOTA work as well as for working some amateur radio satellites.
Weiterlesen: ArrowAntennas 146/437-10BP - first measurements
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.
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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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. |
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.
The first SOTA activation for 2018 is done. Monika (DL6SCF) and I activated the "Kaltes Feld" DM/BW-659.
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.
With the firmware version 1.9.0 there are some minor enhancements:
Here are the required files:
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.
Some years ago I had wxtoimg running on a Windows machine and receiving NOAA images automatically with an analogue receiver.
Weiterlesen: Weather satellites reception - first steps on Linux
Initial steps to setup Grafana on Raspberry3 Debian Strech
Here the first step to automated data aggregation of sensor data ...
Logbook for basic setup of InfluxDB 1.02 on Raspberry Pi 3
Logbook for basic setup of NodeRED on Raspberry Pi 3
Logbook for basic setup of Raspberry Pi 3
I was able to get a used 40dB power attenuator from a fellow ham. It is a 250W version in a very good condition. The attenuator should be usable up to 6GHz.
Weiterlesen: Weinschel 40dB fixed high power coaxial attenuator
I've bought a cheap chinese DC-block on eBay for my spectrum analyser.
Here some measurements using the miniVNAtiny with vna/J:
2014 CW (Morse Telegraphy) was added to the German Nationwide Inventory of Intangible Cultural Heritage.
© 2019 Dietmar Krause, DL2SBA