flyingearly wrote:This thread is really helpful, but I wanted to flag a question - and possibly an example of where there is ambiguity.
B) FROM: 20/06/18 15:15
C) TO: 20/06/30 19:00
This is down to the reading of NOTAMs, which should be taught, but often isn't taught properly. This line is the effective time the NOTAM is valid. If you plan your flight within this time, the NOTAM will be shown. If you plan your flight outside this period, it'll mean the NOTAM isn't of use to you so it won't. It's not to do with any activation times of airspace or anything. That comes later:
flyingearly wrote:E) SOUTHEND CTA, CTR, ATZ DEACTIVATED. AD CLOSED. NO ATS AVBL
This describes what the NOTAM is and when the bits described are valid. So it's saying, "SCHEDULE: 1515-1900". Since it doesn't specify any days, I would assume this is every day, from the start time of the NOTAM validity (B) to the end (C).
It's not really ambiguous. It's only ambiguous if you don't read it!
We're not at the stage where we have fully automated NOTAMs yet, so all a mapping program can do is highlight the NOTAM and interpret it the best it can for ease of display, it's up to the user to read what it says.
Another big bit of confusion seems to be when the NOTAM has a circle around it, to show how far away from the epicentre that people should be notified that the NOTAM exists. This has, time and time again on forums, been mistaken to be the actual diameter of any restriction or what-have-you, rather than just the circle to highlight the NOTAM.