this post was submitted on 20 Nov 2023
94 points (94.3% liked)
Technology
59204 readers
3190 users here now
This is a most excellent place for technology news and articles.
Our Rules
- Follow the lemmy.world rules.
- Only tech related content.
- Be excellent to each another!
- Mod approved content bots can post up to 10 articles per day.
- Threads asking for personal tech support may be deleted.
- Politics threads may be removed.
- No memes allowed as posts, OK to post as comments.
- Only approved bots from the list below, to ask if your bot can be added please contact us.
- Check for duplicates before posting, duplicates may be removed
Approved Bots
founded 1 year ago
MODERATORS
you are viewing a single comment's thread
view the rest of the comments
view the rest of the comments
I take it you have never been to mountains or driven through rural areas? Cell coverage is line of site.
I live in Ireland, rural areas is mostly what we have. We don't have national parks the size of Nigeria though.
I never paid particular attention to national park sizes until seeing your comment. "Everything is large and far away" is just part of the mindset in the US. :) Looked them up, and Nigeria would only rank as #23 for total land area compared to the US national parks... Crazy.
This was the dumbest thing to say. Obviously you don't know anything about radio waves propagation. 4G for example have different frequency bands ranging from 700MHz till 2500MHz and radio waves can propagate not only using line of sight (LOS) but also by reflection, diffraction (bending around obstacles) and scattering. Saying that they rely solely on LoS is misleading!
GSM radio waves can penetrate buildings and obstacles but this of course attenuates. The propagation depends on the frequency, and as a general rule of thumb the lower the frequency the higher the coverage but lower the bandwidth, that's why GSM operators are usually using higher frequency in densely populated areas and lower frequencies in sparsely populated areas. The coverage depends on their GSM network, how it is optimised and designed and usually operators need to choose what areas to cover and not to.
This was not the dumbest thing to say at all. For all your extra words, those high frequencies are de facto line of sight. If you live in the mountains anywhere remotely rural you know this is true. Also, the low frequency bands are known for their penetration and diffraction, but even VHF (~150MHz) is considered line of sight due to its low diffraction. On what basis are you so confident? Neither physics or empirical evidence back you up. Pretty high-handed with your, "dumbest thing to say," comment.