How tu run miniVNA PRO in Linux Mint
MiniVNA PRO is a small Vector Network Analyzer with frequency range from 100 kHz to 200 MHz.
- Download VNA/J to your folder.
- Make it executable (chmod +x)
- Run (see the following screen shot)
How to Install KiCad EDA with Libraries in Linux Mint
(Schematic and PCB editor)
Have you installed KiCad this way?
sudo add-apt-repository --yes ppa:js-reynaud/kicad-4
sudo apt-get update
sudo apt-get install kicadDo you have the same issue?
The following libraries were not found…
This should help: sudo apt-get install kicad-library
How to Install wxPython Phoenix in Linux Mint, Python 3.5
(GUI for Python)
I had to add these packages:
sudo apt-get install libgtk-3-dev
sudo apt-get install libwebkit-dev
sudo apt-get install libgstreamer-plugins-base0.10-dev
As you can see in the following picture, this command worked for me:
sudo python3.5 -m pip install --trusted-host wxpython.org -v -U --pre -f http://wxpython.org/Phoenix/snapshot-builds/ wxPython_Phoenix
Bluetooth Handsfree and Inverted F antenna
I bought a new hands-free from an online shop. Unfortunately, when I tried my first call with this device I found that the microphone is not working. I was thinking about returning the product but at the end I decided to try to fix that. As you can see in the following picture, the repair was straightforward. When I was fixing the polarity of the electret microphone, I found more interesting thing on the PCB - the invertered F antenna for bluetooth band (2.4 GHz) which is widely used in mobile devices. This particular antenna is connected to the source via coplanar waveguide with ground.