RF Powermeter - Firmware 1.8.1
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
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
RF Powermeter - Calibration basics ** updated **
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
Weiterlesen: RF Powermeter - Calibration basics ** updated **
New boy in town - QCX-mini
Last weekend I've finished my QCX-mini kit for 20m from QRPLabs.
This was a birthday present from my wife and she is very happy, that the QCX-mini now works great ;-) I'm too ...
On Sunday I was able to make three contacts to the US south coast - 5w and a dipole - thats fine.
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- Kategorie: Transceiver
hamware AT-502/AT-515/AT-615B Interface
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.
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- Kategorie: hamware
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.
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- Kategorie: Shack
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.
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- Kategorie: RF Powermeter
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
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- Kategorie: RF Powermeter
2014 CW (Morse Telegraphy) was added to the German Nationwide Inventory of Intangible Cultural Heritage.
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© 2021 Dietmar Krause, DL2SBA