Anything RF is deep wizarding lore, a world filled with wonders unexplainable to laypeople.
The effect is well known, and the reason why if you open up your average phone, there will always be a ton of shielding around components. All the high speed buses can and do create lots of side emissions... so in order to allow a phone to function with its extremely tiny bunch of antennae in direct proximity to the chips, all components get shielded from each other.
In desktops and even most laptops however, the high-speed (and thus high-frequency) chips and their clock traces are very far away from the wifi/bt antennae, so for a long time manufacturers could get away with not shielding anything, just taking care about ground planes, trace length and impedance matching and spacing. Nowadays, with buses getting ever faster and faster (to the point where analog design criteria take over priority), I think we'll start seeing shielding rather sooner than later, and we're already seeing CAMM modules getting implemented in devices for the same purpose.
Side note: that's also why you're not supposed to operate a computer's parts without a case at all or with a partially open cases. The case itself acts like a faraday cage.
If you have external antennas you can (or at least could) actually try this. Having the RAM just behind the antennas (by holding them in an open case) with a clear line of sight to the router produced significantly worse results than moving the antenna 30cm in either direction.
I can't remember which WiFi generation I was testing this with but I remember seeing something like a 40% reduction, worst case.
Do you know if it’s possible to enable tv recording and maybe vcr (or how it’s called the thing that allows you to pause live tv and resume later)?
In italy for some reasons they are disabled..
I’m not sure TV recording is possible since you’ll be getting DRM-protected/encrypted content anyways, at least regarding the streaming TV channels (unless you wanna get in the business of researching and looking for exploits in widevine level 1 certified chips).
In the US at least (don't know about Italy), TV is very rarely streamed over the Internet. Most people have a cable / set-top box that does the descrambling and then send a (HDCP protected) video stream to the TV.
Because commercial TVs are trusted devices that have the key to decrypt the HDCP stream, if a TV had a feature to record and rewind video, it would work just fine. Widevine isn't related because that's only used (AFAIK) for Internet streaming.
Not sure what you mean; streaming TV in the US is booming with YT TV reportedly having 5 million subscribers, Hulu live TV at 4.1 million, Sling at 2.2 million, and Fubo at 1 million.[0] That's 12 million american households, so between 5% and 10% of the adult population (depending on how many subscribers you think are married).
There are more than 50 million cable TV subscribers alone, though. And just over 10% of television households rely on broadcast TV exclusively. My point wasn't that streaming TV subscribers don't exist, it was just that the OP almost certainly meant recording traditional cable or broadcast TV when they said "tv recording". That's why I was confused by your reference to widevine.
