Some street photos from a visit to Beijing.
Continue reading “Street Photos from Beijing”
Ken came to visit from Seattle so Beard and I took a day off on Friday to go car-camping in Forster.
At my first International Lighthouse and Lightship Weekend with the Manly Warringah Radio Society, operating from Barrenjoey Lighthouse. Here is their writeup: http://www.mwrs.org.au/lighthouse-operations/. It was a great experience to stay there for the night.
Host computer requirements for installing the Ettus USRP x310 along with keras are:
- The host machine must be 64-bit compatible (you can check under linux by typing
grep /proc/cpuinfowhich should have the “lm” flag present).
- You also need about 50GB of free disk space for the Xilinx tools.
The steps are:
Continue reading “Ettus USRP x310 installation on Ubuntu”
I had a lot of trouble making an Ubuntu boot USB drive from OSX. The instructions on https://tutorials.ubuntu.com/tutorial/tutorial-create-a-usb-stick-on-macos#0 don’t work in general. I think there are two reasons:
- The program doesn’t reformat the USB drive
- If there are existing files on the USB from say a 32-bit Ubuntu and you create a 64-bit usb, UNetbootin doesn’t overwrite all the necessary files. In this case the installation goes smoothly but when you reboot the installed system, you get a “No working init” error.
The best way to do it is:
Continue reading “How to make a Ubuntu boot usb in OSX (don't use the UNetbootin USB installer)”
My electronics doesn’t normally involve a hacksaw, hammer and propane torch but I had fun building this J-pole antenna from instructions by N6JSX.