For posting images, have a look at the thread:
Posting images on the HFU.We have also had some recent discussions with regards to imgur in this thread:
Using imgur for posting images.I have to admit, this has to be one of the most often asked questions on this board and the most frustrating one to find an answer to.
As for the HFTs, they are all claiming "confidentiality" therefore information is scarce. This has legislators frustrated as these services are requesting enormous amounts of spectrum, all of which is predominantly allocated to public broadcasting. The issue, HFT is not for public consumption and is "for profit". I have recently heard that the FCC is starting to not renew or are denying HFT applications. If you Google search High Frequency Trading you will find some interesting articles. You can also search on the HFU for High Frequency Trading, HFT or the term that I have coined for it, Energy Swath.
Why the multiple parts? This is 2-way communication (network over HF). You are seeing data from one location, for example Chicago, and the command and control from the far end, for example London England, returning.
You don't always see all 3 parts. Sometimes just the Energy Swath and sometimes just the C2 element. It all depends on the propagation. I pretty much see the Energy Swath every evening (EST) for several hours.