CW-Sensor-Keyer reloaded

You may have seen my build version of the M0UKD sensor keyer and the Bamatech sensor head.

As you can see in this post, I've used a simple slide switch to control the power for the sensor keyer. This was a little bit annoying, as you must always check, whether you've turned of the power, when you leave the shack.

As power consumption is not really a big issue - the keyer draws about 2.5mA from two AA-cells. Based on the capacity of an average Energizer Classic AA battery of 1.200mA you will get an on-time of about 300h.

Since many months I've had the idea, to add an electronic switch to the keyer, so it switch of automatically after 15 minutes of idle time.

Details

Kategorie: Shack

Zuletzt aktualisiert: 17. Oktober 2020

Weiterlesen: CW-Sensor-Keyer reloaded

RF Powermeter - Uploading HMI file

The Nextion display needs the content defined in the file PowerMeter.HMI. You can either upload it with the Nextion editor via a serial link to the display or you can copy the TFT file to an SD card and put this into the socket on the Nextion display.

Details

Kategorie: RF Powermeter

Zuletzt aktualisiert: 18. September 2020

Weiterlesen: RF Powermeter - Uploading HMI file

RF Powermeter - Updated display files

I've updated the the display control files to the current Nextion Editor 1.62:

   HMI-file for the editor: here

   TFT-file for direct load to display: here

Details

Kategorie: RF Powermeter

Zuletzt aktualisiert: 18. September 2020

SOTA - equipment weight list

Details

Kategorie: SOTA

Zuletzt aktualisiert: 06. Juni 2020

Weiterlesen: SOTA - equipment weight list

Yaesu FT-818 - Modification MIC MH-31

Comparison between an unmodified MH-31 microphone (dynamic mc) at my FT-818 in SSB and a modified (electret capsule)

Details

Kategorie: Transceiver

Zuletzt aktualisiert: 16. April 2020

Weiterlesen: Yaesu FT-818 - Modification MIC MH-31

Power usage ...

All data measured using the ELV Energy Master Profi-2 Energy Master Profi-2:

Details

Kategorie: Measuring Technology

Zuletzt aktualisiert: 19. Dezember 2019

Weiterlesen: Power usage...

hamware - FT-991A Unterstützung

Ich habe die Firmware für die Hamware Tuner um den Yaesu FT-991A erweitert.

In Verbindung mit den Logbuchprogrammen UCXLog und Swisslog folgt der Tuner automatisch der eingestellten Frequenz.

Nähere Infos sind hier zu finden.

Details

Kategorie: hamware

Zuletzt aktualisiert: 07. Dezember 2019

2-tone generator - FA-2-NF etc.

One of my HAM fellows has build a new 2kW HF amplifier. Together with his SDR ANAN-100 he gets really impressive IM3 values.

This inspires me also to do some measurements on my existing HF transceivers - K3 & KX3. For this I needed a two-tone generator.

Details

Kategorie: Shack

Zuletzt aktualisiert: 11. Oktober 2019

Weiterlesen: 2-tone generator - FA-2-NF etc.

hamware - FT890 Unterstützung

Ich habe die Firmware für die Hamware Tuner um den Yaesu FT890 erweitert.

In Verbindung mit dem Logbuchprogramm UCXLog folgt der Tuner automatisch der eingestellten Frequenz.

Nähere Infos sind hier zu finden.

Details

Kategorie: hamware

Zuletzt aktualisiert: 23. September 2019