Blitzortung is not a company, but rather a self-funded group of hobbyists creating an impressive lightning strike database free for the use of data contributors, apparently with no plans to monetize the collected data.
The “kit” that they offer when your name finally reaches the top of the queue is a pick list of parts that you want from them, and you are free (and encouraged!) to source any of them (like the 4 x $12.00 RF filter chips) locally if you can get them cheaper. Even if you buy everything they offer (~$350 USD after shipping), you still need to source a power supply, GPS antenna/LNA, interconnect cables, and construct the required antennas. I’ll be in over $400 USD by the time mine is online.
It appears that they are running small batches of hardware from available funds, and possibly losing out on bulk discounts from larger board runs. I was wondering why they did not just publish the board at one of the open-source hardware (OSH) PCB manufacturers and let everyone obtain their own. Seeing how they have gone out of their way to hide the Blitzortung web site account signup link in the board’s firmware (and apparently pre-tied to the board’s ID), their decision not to do that may be an effort to prevent their lightning data from getting junked-up like WU’s PWS bad data.
As Groucho Marx said, I refuse to join any club that would have me as a member.
Speaking of lightning, my watch is going crazy with lightning alerts from my two currently-running Airs at home right now…