JackYack - simple memory morse keyer
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.
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- Kategorie: Transceiver
SSTV from ISS during February 2019
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.
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- Kategorie: Satellite
Sale
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.
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- Kategorie: For sale / Zu verkaufen
Setting up mail on an RPi to an SMTP host
Here a short description how I set up my RPi to send mail, usually sent to the users mbox to an SMTP server.
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- Kategorie: Raspberry Pi
hamware - FTDX-5000 Unterstützung
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.
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- Kategorie: hamware
IoT - NodeRED - Backup
According to node-red cookbook all files in the .node-red subdirectory should be backuped - except files in "node-modules" sub-directory:
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- Kategorie: IoT Internet of Things
WIMO Diplexer #22030 - 2m/70cm 100W
As a logical follow on I opted for a separate Diplexer for my Arrow antenna. I've choosen the WIMO Diplexer #22030.
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- Kategorie: Antennen
ArrowAntennas 146/437-10BP - first measurements
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.
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- Kategorie: Antennen
Weiterlesen: ArrowAntennas 146/437-10BP - first measurements
QRPGuys 40m-10m UnUnTenna Plus
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
Cheat sheet for HamGadgets Ultra Picokeyer
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
SOTA - DM/BW-078 - Römerstein
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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. |
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- Kategorie: SOTA
SOTA - DM/BW-855 - Michelsberg
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
SOTA - DM/BW-659 - Kaltes Feld
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
RF Powermeter - Precision V2
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
RF Powermeter - Firmware 1.9.0
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
QRPGuys Tri-Band Vertical Antenna
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
Weather satellites reception - first steps on Linux
Some years ago I had wxtoimg running on a Windows machine and receiving NOAA images automatically with an analogue receiver.
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- Kategorie: SDR
Weiterlesen: Weather satellites reception - first steps on Linux
IoT - Grafana - first steps
Initial steps to setup Grafana on Raspberry3 Debian Strech
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- Kategorie: IoT Internet of Things
IoT - InfluxDB - first steps
Data aggregation
Here the first step to automated data aggregation of sensor data ...
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- Kategorie: IoT Internet of Things
IoT - InfluxDB - Setup
Logbook for basic setup of InfluxDB 1.02 on Raspberry Pi 3
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- Kategorie: IoT Internet of Things
IoT - NodeRED - Setup
Logbook for basic setup of NodeRED on Raspberry Pi 3
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- Kategorie: IoT Internet of Things
IoT - Setup Raspi 3 for nodeRED & InfluxDB
Logbook for basic setup of Raspberry Pi 3
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- Kategorie: IoT Internet of Things
Weinschel 40dB fixed high power coaxial attenuator
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.
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- Kategorie: Measuring Technology
Weiterlesen: Weinschel 40dB fixed high power coaxial attenuator
Chinese DC-Block
I've bought a cheap chinese DC-block on eBay for my spectrum analyser.
Here some measurements using the miniVNAtiny with vna/J:
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- Kategorie: Measuring Technology
2014 CW (Morse Telegraphy) was added to the German Nationwide Inventory of Intangible Cultural Heritage.
© 2019 Dietmar Krause, DL2SBA