I’m tempted to send the Uncanonical Department of Inaccuracies in to hit Makes-Things over the head with Harry Potter and the Goblet of Fire. Since when does "technology" not work at Hogwarts? This fanon is apparently based on Hermione’s explanation why Rita "The Bug" Skeeter couldn’t bug Hogwarts. But Hermione talked only about electricity and some examples of electric or electronic devices, like microphones, recorders, radio etc.

Hagrid’s crossbow is technology. Harry’s watch is technology. Colin Creevey’s camera is technology. There’s no implication in canon that these devices are magical, and they work just fine at Hogwarts.

I'm sure that the TCDA’s steampunk equivalents of PPC technology would work at Hogwarts. And there is no reason to assume that futuristic sci-fi-technology would not work at Hogwarts as long as we don’t assume that all technology from fictional future worlds will always be an application of electricity.

HG

Okay, I didn't have a link, so you beat me to being better than me... anyhow. I was going to say it could be the canon-cloaking effect accepting such devices as 'native' despite them not actually fitting in. Agent Ekwy disagrees, naturally, and she might even be right. ^_^

I wonder - is that the first instance of an SEP field taking the place of canon cloaking in a PPC story? It's certainly early enough...

(I think it'd be more interesting if we'd established early on that non-native technology of whatever kind simply doesn't exist in canon worlds, but that ship sailed with... ehm... Rambling Band, so never mind.)

hS

He had non-3D+1 universes in another novel I read, I think it was Diaspora - I distinctly remember discussions of orbits in non-3D+1 environments.

Speaking of altered laws of physics, there's also the universes of Unicorn Jelly/To Save Her and Pastel Defender Heliotrope, which are... really weird. That's both the stories and the universes which are weird - the latter feature different fundamental forces and particles of matter than our own universe.

Then there's the multiverse of Fine Structure, which is where I pulled the '3D+1' terminology from, and also goes into ridiculous numbers of dimensions... and has some kind of connection with UJ/TSH/PDH, since both of them use 'ana' and 'kata' as the names for fourth-spatial-dimension directions. They may both be drawing on the same source, though, I can't find a specific mention of it anywhere.

Heck, for that matter, Flatland. And I actually did a mission into there, here. Looking at it, I explained how the notepad worked in 2D, but just glossed over the Remote Activator with 'I hope it still works'. Apparently it did, which suggests that something like the conditions in PDH applies - PPC tech alters itself to still work under the local laws of physics, if it possibly can.

hS

I'd reckon that it works the same way Bleeprin works - once you think it doesn't work, it stops working.
Fittingly, Bleerpin comes from HFA.

Portals could be replaced with Portkeys and Apparation, though it would be way too much trouble for agents to drag Portkeys around (not to mention they activate at a certain time and take you to a predetermined location, and need a spell to be created), and Apparation is only possible for witches and wizards and can't be done within Hogwarts (or other similarly warded areas).

CADs could be replaced with the low-tech (though not as accurate) litmus strips...

I really hope I didn't just break all Potterverse missions. :P